Repairs & Maintenance
125 sources in the library on repairs & maintenance. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 2 of 4.
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Health and Safety Executive
HSE's brief guide to COSHH, INDG136(rev5) revised 10/12, and the regulation a DIY note is implicitly relying on whenever it says to ventilate or wear gloves. It explains how to control substances hazardous to health so they do not cause ill health, under the Control of Substances Hazardous to Health Regulations 2002 as amended. It states that every year thousands of workers are made ill by hazardous substances, contracting lung disease such as asthma, cancer, and skin disease such as dermatitis, at a cost of many millions of pounds a year to industry in replacing trained workers, to society in disability allowances and medicines, and to individuals who may lose their jobs. It names the categories of harm directly relevant to renovation: dusty or fume-laden air causing lung disease in welders, quarry workers and woodworkers, and metalworking fluids growing bacteria and fungi that cause dermatitis and asthma. It also tackles the myth that a method is safe because it has always been done that way, pointing out that some diseases take years to develop.
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Health and Safety Executive
HSE's brief guide to the Work at Height Regulations 2005, INDG401(rev2) published 01/14, and the document that gives a DIY note its hierarchy of control. It defines work at height as work in any place where, without precautions, a person could fall a distance liable to cause personal injury, giving as examples working on a ladder or a flat roof, being able to fall through a fragile surface, or falling into an opening in a floor or a hole in the ground. It states that falls from height are one of the biggest causes of workplace fatalities and major injuries, with falls from ladders and through fragile roofs the common causes. The required sequence is: avoid work at height where reasonably practicable; where it cannot be avoided, prevent falls using an existing safe place of work or the right equipment; and minimise the distance and consequences of a fall where the risk cannot be eliminated. It also states directly that the belief ladders and stepladders are banned is a misconception, and adds practical rules such as doing as much work as possible from the ground, ensuring safe access to and from the work, keeping equipment suitable, stable, strong enough, maintained and checked, and not overloading or overreaching.
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Health and Safety Executive
The HSE leaflet a decorating or period-property note should cite on lead paint. Names the highest-risk activities as blast removal and burning of old lead paint, stripping old lead paint from doors and windows, hot cutting in demolition and dismantling, some painting of buildings, and soldering. Corrects a common misconception: lead is not absorbed through the skin, except as lead alkyls and lead naphthenate, so the routes of entry are breathing in lead dust, fume or vapour and swallowing lead by eating, drinking, smoking or nail-biting without washing hands and face first. Absorbed lead circulates in the blood and is stored mainly in the bones, where it can remain for years without symptoms. Early effects are headaches, tiredness, irritability, constipation, nausea, stomach pains, anaemia and weight loss; continued uncontrolled exposure can cause kidney damage, nerve and brain damage and infertility. Flags that an unborn child is at particular risk, especially in the early weeks before a pregnancy is known. Where exposure is significant as defined in law, the employer must supply protective clothing, launder it, measure airborne lead, supply respiratory protective equipment if the occupational exposure limit cannot be met, and arrange blood-lead medical surveillance.
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Health and Safety Executive
The HSE's proportionality statement on legionella in domestic property, which corrects the common claim that landlords need a paid legionella certificate. Defines a landlord for this purpose as anyone renting out a property they own under a lease or licence shorter than 7 years, covering local authorities, housing associations, private landlords, housing co-operatives and hostels, and including renting a room within your own home. Identifies the legal basis as section 3(2) of the Health and Safety at Work etc Act 1974, with section 53 treating landlords as self-employed, plus the Control of Substances Hazardous to Health Regulations, and the Approved Code of Practice L8 on the control of legionella bacteria in water systems. States plainly that while there is a duty to assess the risk, this does not require an in-depth, detailed assessment, and that risks in most residential settings are generally low because of regular water usage and turnover. Sets out the low-risk profile: daily water use sufficient to turn over the entire system, cold water direct from a wholesome mains supply with no stored water tanks, and hot water from instantaneous or low volume heaters.
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Health and Safety Executive
The HSE leaflet that carries the temperature range every hot water and cylinder note should cite. States there is a reasonably foreseeable legionella risk where water is stored or re-circulated, where water temperature in all or part of the system is between 20 and 45 degrees Celsius, where there are nutrients such as rust, sludge, scale and organic matter, and where water droplets can be produced and dispersed, giving showers and cooling tower aerosols as examples. Defines legionellosis as the collective name for the pneumonia-like illness caused by legionella bacteria, covering legionnaires' disease itself plus the less serious Pontiac fever and Lochgoilhead fever, and notes everyone is susceptible but higher risk attaches to people over 45, smokers and heavy drinkers, people with chronic respiratory or kidney disease, and anyone with an impaired immune system. Legionella pneumophila occurs naturally in rivers, lakes and reservoirs in low numbers but multiplies in purpose-built systems including cooling towers, evaporative condensers, hot and cold water systems, whirlpool and spa pools, humidifiers and air washers. Published 04/12 as leaflet INDG458, and points to the Approved Code of Practice L8 for detail on control.
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Historic Environment Division, Department for Communities (Northern Ireland)
NORTHERN IRELAND, with a fifth grading system distinct from every other nation. There are over 9,100 listed buildings in Northern Ireland, designated as being of special architectural or historic interest under SECTION 80 OF THE PLANNING ACT (NORTHERN IRELAND) 2011, not England's Planning (Listed Buildings and Conservation Areas) Act 1990. Statutory listing began in Northern Ireland in 1974 and the First Survey took over 20 years. Grades are A, B+, B, B1 and B2, against England's I, II* and II and Scotland's A, B and C, but the statutory controls apply EQUALLY to all listed buildings irrespective of grade, so the NI grade does not change what consent is needed. Listing covers the complete interior and exterior and can extend to fixtures and free standing objects within the curtilage. The Historic Environment Division is a statutory consultee to the local councils, which determine listed building consent applications. Records sit in the NI Buildings Database, the Historic Environment Map Viewer and the Historic Environment Register of Northern Ireland.
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Historic Environment Scotland
The most useful of the HES INFORM guides for a retrofit note, because it addresses the failure mode that insulation guides skip. Published 31 August 2020 by Historic Environment Scotland, INFORM Guide, 2.82 MB PDF, audiences Planners and Owners and Conservation and Heritage enthusiasts. Scope stated on the page: the causes and risks of condensation in traditional buildings, how to identify the source of condensation and how to reduce it, with a PARTICULAR FOCUS ON THE RISK OF INCREASED CONDENSATION AFTER THERMAL IMPROVEMENTS. That last point is the citable one: a public body stating that insulating a traditional building can increase condensation risk, which contradicts the common claim that insulation simply cures damp.
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Historic Environment Scotland
A free public-body technical guide on damp in traditional buildings, and the accessible route to heritage-grade damp advice because Historic England blocks scripted fetches. Published 1 July 2007 by Historic Environment Scotland, publication type Technical, Advice and Guidance, INFORM Guide, audiences Planners and Owners and Conservation and Heritage enthusiasts, subjects Architecture and Climate Change, downloadable as a 288 KB PDF from the page. Scope stated on the page: recognising the causes and early signs of damp, and guidance on rectifying damp problems. Use it as the counterweight to damp-proofing sales literature, since HES guidance for solid-walled traditional buildings does not start from the chemical injected damp proof course assumption that dominates UK damp articles. Note the jurisdiction: it is Scottish guidance, so the building science transfers but any regulatory reference does not.
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Historic Environment Scotland
The public-body source for why cement mortar on a traditional stone or soft brick wall causes decay, published 13 October 2016 by Historic Scotland (now HES), INFORM Guide, 377 KB PDF. Scope stated on the page: it focuses on the two commonly used mortar types, lime mortars and cement mortars, gives an overview of the physical properties of both, and indicates their technical suitability for use with traditional stone masonry, on the basis that selecting a suitable mortar for repair works matters for conservation and for PREVENTING MASONRY DECAY ASSOCIATED WITH THE USE OF INCOMPATIBLE MATERIALS. Pair it with the HES Short Guide: Lime Mortars in traditional buildings (1 March 2013, 2.16 MB PDF), which covers the history and use of lime mortars, sourcing of raw materials, preparation of mortars for repairs and how to recognise and reduce the risk of failure, and with the INFORM Guide: Hot-Mixed Lime Mortars (1 April 2015, 4.41 MB PDF), which explains how hot-mixed lime mortars differ from other lime mortars and how they are prepared on site.
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Historic Environment Scotland
Free HES guidance on how a traditional house was designed to breathe, useful whenever a note explains why blocking air bricks or sealing a chimney causes damp. Published 1 October 2008 by Historic Scotland (now HES), INFORM Guide, 653 KB PDF, audiences Planners and Owners and Conservation and Heritage enthusiasts. Scope stated on the page: the importance of ventilation in a traditionally built structure, then the various ways ventilation is provided, specifically SUB-FLOOR VENTILATION and CHIMNEYS, and issues surrounding masonry walls and plastered surfaces. Cite it alongside Approved Document F when a note covers suspended timber floors, chimney capping or draught-proofing an older house.
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Historic Environment Scotland
SCOTLAND, and it contradicts England directly on one point: conservation area consent still exists in Scotland for the demolition of unlisted buildings, whereas England abolished it in 2013 and folded relevant demolition into planning permission. As at March 2026 Scotland had more than 46,500 listed building records and more than 600 conservation areas. Listed building consent must be applied for from the planning authority before any change that may affect the character of the property, and is almost certainly needed for an extension, structural alterations, partial or total demolition, internal alterations affecting character, and changing windows and doors; cleaning stonework, changing external paint colour and new signage may also need permission. The owner is responsible for repair and maintenance. Planning authorities may hold a character appraisal explaining a conservation area's designation. HES and the Scottish Government Building Standards Division jointly publish the Guide to Conversion of Traditional Buildings to reconcile building standards with conservation.
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Historic Environment Scotland
SCOTLAND. Listed buildings are designated by Historic Environment Scotland under the Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997, not England's 1990 Act, and the first statutory listing in Scotland dates to 1957. There are around 47,000 listed buildings in Scotland, graded in three categories A, B and C by relative importance according to period, style or building type; the categories are advisory and affect how the building is managed in the planning system. Scotland's grading letters differ from England's Grade I, II* and II. Unless the statutory address explicitly says otherwise, a listing always covers the interior as well as the exterior, extensions and any attached structures, and unattached structures within the curtilage are also listed. Each building has an online Listed Building Record whose Statutory Address is the legal part of the listing. Listed Building Consent may be required for change, and designation decisions follow the HES Designation Policy and Selection Guidance.
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HM Revenue and Customs
The single most useful correction for any derelict-property or doer-upper note. HMRC states flatly that there is no tax relief and no lower rate of SDLT for uninhabitable properties, that a very high proportion of repayment claims in this area are wrong, and that buyers should be cautious about being misled by repayment agents. Being suitable for use as a dwelling is not the same as being ready for immediate occupation, and if a building retains the character or identity of a residential property it is wholly residential for SDLT despite disrepair. Lists the defects that expressly do not make a property unsuitable for use as a dwelling, even in combination: temporary removal of bathroom or kitchen facilities before sale, substantial repair or replacement of windows, floors, doors or roof, replacement boiler and pipework, unsafe electrical wiring, services switched off, pest infestation, damp proofing needed or plasterboard damage, flood damage, the presence of asbestos, and structural defects that can be repaired. Past use as a dwelling is a strong indicator of suitability. Cites the Court of Appeal in Amarjeet and Tajinder Mudan [2025] EWCA Civ 799 as now legally binding, upholding the Upper Tribunal at [2024] UKUT 307 (TCC). Manual published 19 March 2016, updated 1 September 2026.
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Ministry of Housing, Communities and Local Government
The shortest Approved Document, covering requirement D1 of Schedule 1 to the Building Regulations 2010: if insulating material is inserted into a cavity in a cavity wall, reasonable precautions must be taken to prevent the subsequent permeation of toxic fumes into any part of the building occupied by people. The stated performance is that formaldehyde fumes given off by urea formaldehyde (UF) foams must not reach occupied parts at an irritant concentration, and paragraph 1.1 permits formaldehyde-emitting insulants only where a continuous barrier minimises the passage of fumes to occupiable parts. Paragraph 1.2 sets five conditions for filling a cavity with UF foam: the inner leaf must be masonry (brick or block); suitability must be assessed beforehand to BS 8208-1:1985; the installer must hold or operate under a current Certificate of Registration of Assessed Capability; the material must comply with BS 5617:1985; and installation must follow BS 5618:1985. The 2010 amendments were regulation renumbering only and the 2013 amendments changed only the materials and workmanship guidance, with no change to Part D of Schedule 1.
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Ministry of Housing, Communities and Local Government
Non-statutory guidance published 13 July 2026 and updated 31 July 2026 when the PDF was replaced by an HTML version, applying to England, issued as an annex to the Awaab's Law Phase 2 guidance for social landlords. Its key date is that Phase 2 of Awaab's Law comes into effect on 30 November 2026, which extends the duty beyond the damp and mould and emergency hazards of Phase 1 to a wider set of hazards. The document sets the thresholds a social landlord uses to triage each hazard, which is the practical test of whether a reported defect starts the statutory repair clock. Useful for distinguishing what social tenants can require of a landlord from what a private homeowner or private tenant can, since Awaab's Law applies to the social rented sector.
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Ministry of Housing, Communities and Local Government
Statutory guidance published 23 June 2026, applying to England, issued under section 9 of the Housing Act 2004, which local authorities must have regard to when assessing hazards, and which replaces the previous operating guidance issued in 2006. The critical correction it carries is the hazard count: the HHSRS now covers 21 potential hazards, not the 29 in the 2006 guidance, and Part 2 contains a hazard profile for each of the 21. Confirms that a local authority must take enforcement action where it finds a category 1 hazard and has a power, not a duty, to enforce category 2 hazards. Issued in three parts: Part 1 an introductory guide (24 pages) on the theory, principles and assessment process; Part 2 a technical guide for assessors (174 pages) with the hazard profiles; Part 3 a supplementary guide to the hazard of fire and explosions (66 pages).
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Ministry of Housing, Communities and Local Government
The government guidance and template notices for the Act that governs basement digs, underpinning and work to a shared wall. It groups the notifiable work into three sections: section 1, building new on or at the boundary between properties; section 2, work to existing party walls or structures including cutting into a party wall, altering its height or depth, removing chimney breasts and rebuilding the wall; and section 6, excavation near a neighbouring building's foundations, for which the page supplies both a 3 metre notice and a 6 metre notice template. Notice periods differ by type: a section 2 party structure notice needs at least 2 months, while a line of junction notice and an excavation notice need at least 1 month. Where the adjoining owner dissents, the Act provides a dispute resolution mechanism through surveyors who settle the matter by an award. The templates are the practical value here: a note can link the exact notice a homeowner has to serve.
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Ministry of Housing, Communities and Local Government
The landing page for the 2019 research, published 1 October 2019 and applying to England, hosting the 87 page 3.97 MB report. States the primary aim was to evaluate whether the ventilation provisions recommended in the 2010 edition of Approved Document F provide satisfactory indoor air quality in new homes, with a secondary aim of establishing the extent to which installed systems comply with the minimum ADF provisions. Its headline conclusion is the one to cite: the study found poor indoor air quality in a number of the monitored homes, and failure to meet indoor air quality indicators corresponded in all cases with failure to meet the ADF ventilation recommendations, so the shortfall lay in installation and commissioning rather than in the standard itself.
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Ministry of Housing, Communities and Local Government
An 87 page field study published 1 October 2019 measuring what installed ventilation actually delivers, and its numbers demolish the assumption that a new or upgraded system performs as designed. Of 25 homes visited with continuous mechanical extract, only one met Approved Document F guidance on both extract fan air flow rates and trickle ventilator provision, with whole dwelling extract flow rates in normal low-rate mode ranging from 85 per cent below to 8 per cent above the recommended rate. Only half the homes met the minimum trickle ventilator areas, ranging from 60 per cent below to 107 per cent above the recommended area. On two of three dMEV development sites trickle ventilators had been fitted in the same rooms as the extract fans, contrary to ADF guidance, which can stop fans drawing air through the whole house. On air quality: 11 per cent of the limited monitoring sample had a room where weekly average relative humidity exceeded the recommended monthly average, always the bedroom, and condensation or mould was reported in each such room; 30 per cent exceeded the derived carbon dioxide guideline in the bedroom; and 60 per cent of the detailed monitoring sample exceeded the ADF total volatile organic compound performance standard. Ventilation was found adequate for nitrogen dioxide and carbon monoxide but not for moisture, body odour and VOCs. Notes that Part F 2010 introduced a legal requirement to test and commission installed fans and for the installer to notify the building control body of commissioning and air flow rates.
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Ministry of Housing, Communities and Local Government (gov.uk)
The fixed statutory clocks for damp and mould repairs, which a note should use rather than a vague statement that landlords must act promptly. The requirements came into force for the social rented sector from 27 October 2025. Where an emergency hazard is found, the landlord must investigate and complete the relevant safety works to make the property safe within 24 hours. A potential significant hazard must be investigated within 10 working days of the landlord becoming aware of it. A written summary of the findings must be issued to the tenant within 3 working days of the investigation concluding. Relevant safety work must be undertaken within 5 working days of the investigation concluding, and any supplementary preventative work to stop the hazard recurring must be begun, or steps taken to begin it, within the same 5 working days. If the landlord cannot complete the relevant safety work within the initial remediation period, alternative accommodation must be offered at the landlord's expense. Phase 2 extends the significant hazard duties to excess cold and excess heat, falls associated with baths, level surfaces, stairs and between levels, structural collapse and explosions, fire and electrical hazards, and domestic and personal hygiene and food safety.
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Ministry of Housing, Communities and Local Government (gov.uk)
The collection page for the statutory risk assessment a council environmental health officer uses, and the reference point for whether a damp or cold home is legally a hazard. HHSRS is used to assess health and safety hazards in homes, is risk-based and set out in regulation. Note the important 2026 change: the system now covers 21 potential hazards, reduced from the original 29, so any note quoting 29 hazards is out of date. The collection holds the HHSRS Operating guidance, Enforcement guidance and Landlord and agent guide (all 23 June 2026), the Tenant guide (23 June 2026), Case studies (30 July 2026), and Local authority enforcement powers under the Housing Act 2004 (21 February 2019), which is the Act the system sits under.
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Northern Ireland Housing Executive
Northern Ireland runs a materially wider set of housing grants than Great Britain, administered by the Northern Ireland Housing Executive rather than a local council. Six schemes are listed. The Affordable Warmth Scheme addresses fuel poverty and energy inefficiency for low-income households. The Disabled Facilities Grant adapts a disabled person's home, but unlike in England it requires a health trust occupational therapist to recommend the work. The Repair Grant helps landlords where a council has issued a statutory notice for repairs. The Renovation Grant is for homes inspected and found unfit to live in, and the property must be the applicant's main or only home. The Replacement Grant is available only where the home is in a rural area, is unfit to live in and repair is not an option. The Home Repair Assistance Grant covers small-scale repair work and improvements. The Renovation, Replacement and Home Repair Assistance Grants have no equivalent in England.
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Office for Product Safety and Standards
The searchable national database a reader can use to check whether a specific building product, appliance or tool has been recalled or flagged, run by the Office for Product Safety and Standards. Holds 3,692 reports at the date checked, filterable by alert type (product safety alert, product safety report, product recall), risk level (serious, high, medium, low, not provided), product category, measure type and date. Relevant product categories for renovation work include Construction products, Gas appliances and components, Electrical appliances and equipment, Lighting equipment, Adaptors, plugs and sockets, Hand tools, Machinery, Lifts, Pressure equipment and vessels, Furniture and Personal protective equipment. Measure types range from warning consumers of the risks and marking the product with warnings, through modification programmes and withdrawal from the market, to recall from end users, destruction of the product, import rejected at border and removal of the listing by the online marketplace. Entries carry a reference number and date, for example Sophie Allport Doorstops and Draught Excluders (2608-0008) recalled 13 August 2026.
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Scottish Courts and Tribunals Service
Scotland's equivalent of the small claims track, and the figures differ sharply from England and Wales. A Simple Procedure claim can be made for payment of a sum of money where the value of the claim is 5,000 pounds or less, or for delivery or recovery of moveable property or an order to make someone do something, but in each of those cases only where there is an alternative money claim of 5,000 pounds or less. Where the value of the claim is over 5,000 pounds the ordinary cause procedure must be followed instead, so a Scottish homeowner with a 7,000 pound builder dispute is not in the simple track at all, unlike an English claimant whose small claims track runs to 10,000 pounds. Claims are made in the sheriff court by a claimant against a respondent, decided by a sheriff or summary sheriff, and no solicitor is required. New rules apply to claims initiated on or after 31 May 2023, and claims should be submitted through Civil Online, with sheriff approval needed to proceed on paper. Advises trying to settle first and considering Alternative Dispute Resolution, to which the sheriff may also refer parties after the claim form is lodged.
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Scottish Government
Scotland's equivalent of the Approved Documents, and the handbook a Scottish reader needs because Scotland has no Part A to Part R lettering. The domestic technical handbook supports the Building (Scotland) Regulations for houses and flats and is organised into sections 0 General, 1 Structure, 2 Fire, 3 Environment, 4 Safety, 5 Noise, 6 Energy and 7 Sustainability, with Appendix A defining terms and Appendix B listing the standards and other publications it relies on. That structure matters when translating an English reference: fire is section 2 rather than Approved Document B, sound is section 5 rather than Part E, and energy is section 6 rather than Part L. Cite the handbook, and the relevant numbered section, whenever a note gives a building regulations figure and claims to cover the whole UK.
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Scottish Government (gov.scot)
SCOTLAND. Standard 3.2 requires protection from radon and sets the action level at 200 becquerels per cubic metre, the level above which radon in homes should be reduced. Clause 3.2.1 defines a radon probability area as one where tests show 1 per cent of existing dwellings are likely to exceed 200 Bq/m3, mapped in the Indicative Atlas of Radon in Scotland published July 2011 by the Health Protection Agency and the British Geological Survey on the UKradon website, with per-property radon risk reports available from the same source. Clause 3.2.2 requires protective work where a dwelling is to be located or extended on ground designated as a radon probability area or where radon is known to exist, so an extension in Scotland can trigger radon measures that an England-based note would attribute to Approved Document C.
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The National Archives (legislation.gov.uk)
The provision that changed what a homeowner actually owes an insurer, and the correction to every article still saying you must disclose all material facts. Section 2(2) imposes a single duty on the consumer: to take reasonable care not to make a misrepresentation to the insurer. Section 2(4) states expressly that this duty replaces any duty relating to disclosure or representations by a consumer to an insurer that existed in the same circumstances before the Act applied, so the old volunteered-disclosure regime is gone for consumer insurance and the burden shifts to the insurer to ask clear questions. Section 2(3) provides that failing to comply with the insurer's request to confirm or amend particulars previously given is itself capable of being a misrepresentation, which is what catches a homeowner who ignores a renewal notice after an extension or loft conversion. In force from 6 April 2013 by S.I. 2013/450, with section 2(5) omitted from 12 August 2016 by the Insurance Act 2015.
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The National Archives (legislation.gov.uk)
The definitive list of what counts as a statutory nuisance in England and Wales, which is the legal hook for most neighbour and building-work complaints. Section 79(1) names, among others: (a) any premises in such a state as to be prejudicial to health or a nuisance, which is the route used against damp and disrepair; (b) smoke emitted from premises; (c) fumes or gases emitted from premises; (d) dust, steam, smell or other effluvia arising on industrial, trade or business premises; (e) any accumulation or deposit; (fb) artificial light emitted from premises, which covers security lighting; (g) noise emitted from premises; and (ga) noise from a vehicle, machinery or equipment in a street. Each limb requires the matter to be prejudicial to health or a nuisance. Section 79(1) also places a duty on every local authority to inspect its area for statutory nuisances and, where a person living in its area complains, to take such steps as are reasonably practicable to investigate. Section 79(1A) excludes matters caused by land being in a contaminated state, and section 79(2) excludes Crown defence premises from the smoke, artificial light and noise limbs.
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The National Archives (legislation.gov.uk)
The private route that lets an individual go to the magistrates' court directly, without waiting for the council, when aggrieved by a statutory nuisance; in Scotland the equivalent is a summary application to the sheriff. If satisfied the nuisance exists, or that though abated it is likely to recur, the court must make an order requiring the defendant to abate it within a specified time and to execute any works necessary, or prohibiting recurrence, and may also impose a fine not exceeding level 5 on the standard scale. Section 82(3) allows the court, where the nuisance makes premises unfit for human habitation, to prohibit their use for habitation until they are made fit. Section 82(4) fixes who is sued: normally the person responsible, but (b) where the nuisance arises from any defect of a structural character it is the owner of the premises, and (c) where the person responsible cannot be found, the owner or occupier. Section 82(5) makes each of several responsible persons liable even where their own contribution would not by itself be a nuisance.
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The National Archives (legislation.gov.uk), Acts of the Scottish Parliament
SCOTLAND, and there is no England equivalent: England relies on leases and service charges where Scotland legislates for flat ownership directly. Sections 1 to 3 fix tenement boundaries and pertinents by default, so ownership of the roof, close and solum is settled by statute rather than by title alone. Section 4 applies the Tenement Management Scheme in Schedule 1 wherever the title deeds are silent, and section 4A lets a local authority pay a share of scheme costs. Sections 7 to 10 abolish the common law of common interest for tenements and replace it with a statutory duty at section 8 to maintain any part providing support or shelter, a prohibition at section 9 on interfering with support or shelter, and a cost recovery right at section 10. Sections 11 to 15 set when liability for repair costs arises, bind successors at section 12, allow a Notice of Potential Liability for Costs at section 13 and give a former owner a recovery right at section 14. Sections 5 and 6 route disputes to the sheriff.
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The National Archives (legislation.gov.uk), Acts of the Scottish Parliament
SCOTLAND. The default rules for organising and paying for common repairs in a Scottish tenement, in force since 28 November 2004. Rule 1.2 defines scheme property and rule 1.4 a scheme decision; maintenance expressly includes repairs, replacement, the installation of insulation, cleaning, painting, routine works and gardening, but not demolition, alteration or improvement unless reasonably incidental. Rule 2.2 allocates one vote per flat and rule 2.5 makes a scheme decision by simple majority of all votes allocated, so a single objecting owner cannot block a repair. Rule 2.6 requires at least 48 hours notice of a meeting, and rule 2.10 lets any owner who did not vote in favour and who would bear not less than 75 per cent of the costs annul the decision, within 21 days of a meeting they attended. Rule 4.1 lists the recoverable scheme costs including common insurance and door entry systems. Rule 4.2 shares maintenance costs equally among the flats unless the largest flat's floor area is more than one and a half times the smallest, in which case liability is apportioned by floor area; rule 4.3 applies that same floor-area test to the roof over the close.
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UK Health Security Agency
UKHSA's own research summary, and the place to get the national numbers a damp and mould note needs rather than a landlord guidance restatement. It states that around 2 million people in England currently live in homes with significant damp or mould, which is 3 to 4% of residences. The study assessed asthma, lower respiratory infections and allergic rhinitis attributable to damp and mould exposure in England in 2019 and found a burden of 2,800 Disability Adjusted Life Years lost in that year, lower than 10 years earlier but described by the authors as possibly still an underestimate. It also found that ethnic minority and disadvantaged groups are disproportionately affected, a persistent environmental health inequity. The work was led by UKHSA's Air Quality and Public Health team with the Environmental Hazards and Emergency and Toxicology departments, authors Dr Emma Marczylo and Dr Karen Exley, and fed into the joint DHSC, UKHSA and DLUHC damp and mould guidance produced after the inquest into the death of two-year-old Awaab Ishak.
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UK Health Security Agency and Centre for Climate and Health Security
UKHSA guidance published 7 August 2025, applying to England, on the allergens and irritants in indoor air, useful for any note that claims a renovation improves or harms air quality. States that indoor bioaerosols can contribute up to 34 per cent of indoor air pollution, and that people in Western countries spend the majority of their time indoors. Identifies the protein-based allergens as mould spores, which thrive in damp poorly ventilated spaces such as bathrooms and arise from leaks, condensation, poor heating or inadequate ventilation; house dust mites, which thrive in warm humid environments in bedding, carpets and upholstered furniture; and pet dander from skin flakes, urine and saliva. Separately names non-protein respiratory irritants: volatile organic compounds emitted by paints, cleaning agents and air fresheners, and particulate matter from cooking, smoking and open solid-fuel fireplaces. Warns that energy efficiency and adaptation measures can have unintended consequences for indoor environmental quality, and that poorly installed mechanical ventilation can worsen air quality.
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Welsh Government (gov.wales)
WALES. A Welsh Government collection of quick guides, first published 27 October 2017 and last updated 22 March 2023, saying for each common project whether building regulations approval is needed in Wales. It covers adverts and signs, basements, biomass fuelled appliances, boilers and heating, ceilings and floors, change of use, conservatories, decking, decorations, demolition, doors and windows, drains and sewers, electrics, extensions, external walls, fascias, fences gates and garden walls, flats and maisonettes, flues, fuel tanks, garage conversion, heat pumps, hydro electricity, insulation, internal walls, kitchens and bathrooms, lighting, loft conversions, micro combined heat and power, outbuildings, patio and driveway and paving your front garden. Use it instead of the England Planning Portal common projects pages for any Welsh job.
- strong RN-RIEVFH
BRE (Building Research Establishment)
The free BRE article that explains the crack category system a surveyor will actually use, published 15 April 2014 by Rupert Pool. It records that BRE assessed 130 properties that had suffered subsidence in order to help building surveyors identify when ground movement had occurred and when structural intervention was necessary, and that the study produced the six crack categories published in BRE Digest 251, linking crack width and number to the appropriate repair. The working interpretation it gives is the citable part: categories 0, 1 and 2, with crack widths up to 5mm, are aesthetic issues needing only redecoration; categories 3 and 4 are serviceability issues affecting the weather-tightness of the building and the operation of doors and windows; and category 5 is a stability issue likely to require structural intervention. It is explicit that this is a simplification, that other factors including whether crack widths are increasing over time affect the classification, that Digest 251 itself should be consulted for any assessment, and that a building professional should be consulted where damage is significant. It also notes that subsidence insurance claims have historically risen after periods of very dry weather.
- strong RN-BHTZZ6
BRE Electronic Publications
The primary document behind every crack category a surveyor quotes, and the reference a note should name rather than repeating the categories second hand. Digest 251 was written by R Driscoll, published by BRE with a publication date of 01 January 1995 for the revised edition, ISBN 1860810454, and runs to 8 pages. Its description states that it discusses the assessment and classification of visible damage resulting from structural distortion, and that it includes a table classifying cracks from category 0, hairline cracks of less than about 0.1mm width, to category 5, cracks usually greater than 25mm width. Its indexed keywords are cracks, distortion, bulge, foundation movement and subsidence. The store page also notes that the two photographs of wall cracking scanned poorly into the PDF and may need contrast adjustment. Those two anchor figures, 0.1mm at category 0 and 25mm at category 5, are the ones a cracks note can cite with confidence.
- strong RN-4PFJ8L
BRE Group
The catalogue of BRE Digests, Good Building Guides and reports that building professionals cite, with document numbers, authors, dates and prices, which lets a note reference the correct BRE publication rather than BRE in general. Titles include Rising damp in walls: diagnosis and treatment (DG 245, 2007, 15 pounds), Assessment of damage in low-rise buildings with particular reference to progressive foundation movement (DG 251, revised 1995, 15 pounds), Foundation movement and remedial underpinning in low-rise buildings (BR 184, 1991, 35 pounds), Recognising wood rot and insect damage in buildings 3rd edition (BR 453, 2003, 37.50 pounds), Radon: guidance on protective measures for new buildings including supplementary advice for extensions, conversions and refurbishment projects, 2023 edition (75 pounds), Site layout planning for daylight and sunlight: a guide to good practice (BR 209, 2022 edition, 75 pounds, superseding the 2011 edition), External fire spread: building separation and boundary distances (BR 187 2nd edition, 55 pounds) and Wind loads on roof-mounted photovoltaic and solar thermal systems (DG 489, revised 2014, 24 pounds). The BRE U-value Calculator is listed at 0 pounds plus VAT.
- strong RN-YA3KJC
BSI (British Standards Institution)
STATUS: WITHDRAWN on 1 July 2007. BS 3921:1985 was published 29 November 1985 and was the British product specification for clay bricks, including the familiar classes such as engineering brick Class A and Class B and the frost resistance and soluble salt designations that UK brick notes still repeat. It was superseded by the harmonised European product standard BS EN 771-1, Specification for masonry units. Clay masonry units, after which BS EN 771-1 became the sole product standard for clay bricks in the UK; the associated test methods moved to the BS EN 772 series. Any note that specifies bricks to BS 3921 is naming a standard withdrawn nearly twenty years ago and should cite BS EN 771-1 instead. The catalogue page confirms number, title, publication date and withdrawal date but does not name the superseding standard.
- strong RN-002CQ2
BSI (British Standards Institution)
STATUS: WITHDRAWN on 1 January 2005. BS 4721:1981 was published 31 July 1981 and specified pre blended ready mixed building mortars, covering composition, properties and quality requirements for cement, lime, sand and aggregate based mortar products. It was superseded by the European mortar standards, principally BS EN 998-2 for masonry mortar and BS EN 998-1 for rendering and plastering mortar, with mortar designations moving from the old roman numeral mixes (i to v) to the M classes (M2, M4, M6, M12) by compressive strength. A note that cites BS 4721 for a bagged or silo mortar, or that gives a mortar designation without saying which system it belongs to, is working from a standard withdrawn over twenty years ago. Catalogue page confirms number, title, publication date, withdrawal date and scope but does not name the replacement.
- strong RN-604BXB
BSI (British Standards Institution)
STATUS: WITHDRAWN on 21 September 2018. BS 5080-1:1993 was published 15 February 1993 and gave the method of test for tensile loading of structural fixings in concrete and masonry, that is the pull out test used to prove wall anchors, remedial wall ties and similar fastenings on site. Its companion BS 5080-2:1986 covered resistance to loading in shear. Because it is withdrawn, a note that specifies pull out testing of remedial wall ties to BS 5080 is quoting a dead standard; current practice for anchor qualification sits with the European Assessment Documents and BS EN 1992-4:2018, Eurocode 2 design of fastenings for use in concrete, with site proof loading commonly to a manufacturer or third party protocol. Catalogue page confirms number, title, publication date, withdrawal date and scope but does not name a replacement.