RenovationNotes

References

Garden & Landscaping

241 sources in the library on garden & landscaping. 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 4 of 7.

  1. very strong RN-ERB4SL

    The National Archives (legislation.gov.uk)

    SCOTLAND. Part 1 was substituted wholesale on 6 February 2012 by SSI 2011/357 and is the Scottish householder permitted development code, materially different from England's Class A. Class 1A allows a single-storey ground floor extension but not forward of the principal elevation or a road-fronting side elevation, not more than 3 metres beyond the rear wall for a terrace or 4 metres otherwise where any part is within 1 metre of the curtilage boundary, eaves not over 3 metres, height not over 4 metres, resulting ground coverage not more than twice the original dwellinghouse, front or rear curtilage coverage not over 50 per cent, and NOT AT ALL within a conservation area. Class 1B allows a multi-storey ground floor extension only where no part is within 10 metres of the curtilage boundary and the height does not exceed the existing house. Scotland has no 6 metre or 8 metre larger home extension prior approval route.

  2. very strong RN-NYJT8R

    The National Archives (legislation.gov.uk)

    The enabling power for tree preservation orders. Subsection (1) lets a local planning authority make an order for trees, groups of trees or woodlands where it appears expedient in the interests of amenity. Subsection (3) sets out what an order may provide for: prohibiting the cutting down, topping, lopping, uprooting, wilful damage or wilful destruction of trees without the authority's consent, which may be given subject to conditions; securing the replanting of any part of a woodland felled in the course of permitted forestry operations; and applying the planning permission provisions with adaptations. Subsection (6) is the key exemption in the primary Act: nothing in a TPO applies to the cutting down, uprooting, topping or lopping of trees which are dying or dead or have become dangerous, or so far as may be necessary in compliance with an obligation imposed by or under an Act of Parliament or to prevent or abate a nuisance. Regulation-making power for application forms and particulars sits with the Secretary of State in England and the Welsh Ministers in Wales, exercised in SI 2012/605.

  3. very strong RN-PVAW51

    The National Archives (legislation.gov.uk)

    The duty that follows a protected tree being lost, and the one most owners do not know transfers with the land. Where a tree subject to a tree preservation order is removed, uprooted or destroyed in contravention of the order, or where a tree other than one in a woodland is removed, uprooted or destroyed or dies at a prescribed time, the owner must plant another tree of an appropriate size and species at the same place as soon as he reasonably can. For trees in a woodland the owner may instead replace the trees removed, uprooted or destroyed by planting the same number of trees on or near the land, or on such other land as may be agreed between the local planning authority and the owner, in places designated by the authority. The local planning authority may on application dispense with the duty. The duty attaches to the land, so it passes to a subsequent owner, and is enforced by a tree replacement notice under section 207 with an appeal under section 208. Read with regulation 15 of SI 2012/605 for the conservation-area equivalent.

  4. very strong RN-D2K9LQ

    The National Archives (legislation.gov.uk)

    What it actually costs to breach a tree preservation order. Section 210(1) makes it an offence to cut down, uproot, destroy or wilfully damage a tree in contravention of a TPO, or to top or lop it in a way likely to destroy it. Under subsection (2) a person guilty of that offence is liable on summary conviction or on conviction on indictment to a fine, with no statutory ceiling since the removal of the magistrates' court limit - so a Crown Court fine is unlimited. Subsection (3) is the provision that makes these prosecutions bite: in determining the fine the court must have regard to any financial benefit which has accrued or appears likely to accrue to the offender in consequence of the offence, which allows the fine to be pitched against the uplift in development or property value. Subsection (4) covers other contraventions of a TPO, punishable on summary conviction by a fine not exceeding level 4 on the standard scale. Subsections (4A) and (4B) allow proceedings for those lesser offences in England within 6 months of the prosecutor having sufficient evidence but not more than 3 years after the offence; subsection (4E) disapplies that timing for Welsh tree offences.

  5. very strong RN-NA873O

    The National Archives (legislation.gov.uk)

    The schedule that makes an invasive plant legally special. It is divided into Part 1 (animals which are established in the wild), Part 1A (native animals), Part 1B (animals no longer normally present) and Part 2 (plants). Part 2 lists Japanese knotweed as 'Knotweed, Japanese' (Fallopia japonica), giant hogweed as 'Hogweed, Giant' (Heracleum mantegazzianum) and Himalayan balsam as 'Balsam, Himalayan' (Impatiens glandulifera), alongside other listed species such as Japanese seaweed and various Crassula. Listing here is what triggers the section 14 offence of planting or otherwise causing a listed plant to grow in the wild. It does not make it an offence to have knotweed in your own garden, but it is the statutory hook that, combined with the Environmental Protection Act 1990 duty of care on the resulting waste, drives the disposal and containment rules for garden clearance and landscaping works.

  6. very strong RN-8QILGC

    The National Archives (legislation.gov.uk)

    The offence provision behind every warning that planting or spreading an invasive species is a criminal matter, and the section a knotweed or bamboo note should cite rather than a removal company's page. Section 14(1) makes it an offence to release or allow to escape into the wild any animal not ordinarily resident in and not a regular visitor to Great Britain in a wild state, or included in Part I, IA or IB of Schedule 9. Section 14(2) makes it an offence to plant or otherwise cause to grow in the wild any plant included in Part II of Schedule 9, which is where Japanese knotweed and giant hogweed sit. Section 14(3) gives a defence where the accused proves they took all reasonable steps and exercised all due diligence to avoid committing the offence. The section extends to England and Wales.

  7. very strong RN-4UGLYK

    The National Archives (legislation.gov.uk), Northern Ireland Statutory Rules

    NORTHERN IRELAND, and this is the fourth different householder planning fee in the UK. Made 11 March 2025 by the Department for Infrastructure under sections 223 and 247 of the Planning Act (Northern Ireland) 2011, coming into operation 1 April 2025. Category 4 charges £347 for each dwelling for the extension, improvement or alteration of an existing dwellinghouse, and Northern Ireland folds into that SAME category the erection of a building or other operations within the curtilage for ancillary purposes and the erection of gates, fences, walls or other means of enclosure, which Scotland and Wales charge separately. So the four nations stand at England £548, Wales £585, Scotland £371 and Northern Ireland £347. An outline application for a single dwellinghouse is £515 and a full application £1,035. Reduced fees and refunds rise from £76 to £78, advertisement consent from £226 to £231, and EIA development from £12,664 to £12,924.

  8. very strong RN-LBAKH4

    The National Archives (legislation.gov.uk), Northern Ireland Statutory Rules

    NORTHERN IRELAND, and Class A differs from England, Wales and Scotland alike. A single-storey rear extension may extend beyond the rear wall of the original dwellinghouse by no more than 4 metres for a DETACHED house or 3 metres for any other, must not exceed 4 metres in height, and must not come within 3.5 metres of a curtilage boundary with a ROAD opposite the rear wall. An extension of more than one storey is limited to 3 metres beyond the rear wall and must be at least 7 metres from the boundary opposite the rear wall, against Wales's 10.5 metres. Eaves must not exceed 3 metres within 2 metres of any boundary. A side extension must not exceed 4 metres in height or half the width of the original dwellinghouse. Class A expressly excludes ANY alteration to the roof, any deck, balcony, veranda or raised platform, any basement, any chimney, flue or soil and vent pipe, and any microwave antenna, so a Northern Ireland dormer or rooflight is not permitted development under this class. In a conservation area, World Heritage Site, AONB or National Park, cladding in stone, artificial stone, pebbledash, render, timber, plastic or tiles is excluded, as is any extension of more than one storey or over 4 metres or beyond a principal or side elevation. Condition A.3(b) requires any upper floor side-elevation window within 15 metres of a neighbouring curtilage boundary to be obscure glazed and non-opening below 1.7 metres above floor level. Northern Ireland has NO larger home extension prior approval route.

  9. very strong RN-BAHGYP

    The National Archives (legislation.gov.uk), Scottish Statutory Instruments

    SCOTLAND. Schedule 3 is Scotland's equivalent of England's exempt work and diverges sharply from it. Type 1 makes any work to or in a house warrant-exempt except work that increases floor area, demolishes or alters the roof, external walls or elements of structure, adversely affects a separating wall, changes the wastewater disposal system, or is to a storey more than 4.5 metres high. Types 3 to 5 exempt a detached single-storey building over 8 and up to 30 square metres, but not one within 1 metre of the house unless it is at least 1 metre from any boundary, not one containing a fixed combustion appliance or sanitary facility, and not a swimming pool deeper than 1.2 metres; for a flat or maisonette the separation is 3 metres. Type 6 exempts heating work below 50kW solid fuel, 45kW oil or 70kW net gas, but not work on a chimney, flue pipe or hearth, nor an oil storage tank over 90 litres.

  10. very strong RN-GZLT9O

    The National Archives (legislation.gov.uk), Scottish Statutory Instruments

    SCOTLAND, and these figures contradict the England fees. Made 3 February 2026 and in force from 1 April 2026, amending SSI 2022/50. Category 2 of Table 1 sets the householder planning fee for the enlargement, improvement or other alteration of an existing dwelling at £371 for one dwelling and £742 for two or more, against England's £548 householder fee from the same date. Category 3 charges £371 for an outbuilding or other operation within the curtilage of an existing dwellinghouse ancillary to its enjoyment, and £371 for gates, fences, walls or other means of enclosure along a curtilage boundary. Regulation 3 raises the flat fee from £357 to £371, regulation 4 raises the discretionary fees from £238 to £247 and from £119 to £124, and paragraph 9(1) from £714 to £742. New dwellings are £742 each for the first 10, then £557, then £310 above 49, capped at £185,524.

  11. very strong RN-MZWVT0

    Valuation Office Agency, HMRC (GOV.UK)

    Published 22 January 2016 and last updated 15 June 2026, applying to England and Wales, this is the authority that corrects two common claims. First, on rebanding after an improvement: bands are based on the open market price on 1 April 1991 in England and 1 April 2003 in Wales, and if a property has increased in size since it was first assessed it may move to a higher band when it is next sold, so an extension does not trigger an immediate rebanding of the current owner. Second, on Council Tax during works: if the property is occupied the band will not be deleted even if significant repair or renovation works are underway, and only where the property is unoccupied and either beyond repair or undergoing major works making it uninhabitable can the owner apply to have the band removed. Reproduces the full band tables: England Band A up to 40,000 pounds through Band H over 320,000 pounds; Wales Band A up to 44,000 pounds through Band I over 424,000 pounds, Wales having nine bands to England's eight. Assessments are based on size, layout, character, location, change of use and the 1991 or 2003 value, and the Valuation Office does not use property price indexes.

  12. very strong RN-W0QUIB

    Welsh Government

    The Welsh Government's page on the high hedge regime. It runs under Part 8 of the Anti-social Behaviour Act 2003, which came into operation in Wales on 31 December 2004, so the substantive definition is the same as England's: a line of two or more evergreen or semi-evergreen trees or shrubs over 2 metres high forming a barrier to light. A complaint about a neighbour's evergreen hedge can only be taken to the local authority once all other avenues for resolving the dispute have been tried and exhausted. The maximum fee a Welsh local planning authority may charge is GBP 320; it is for each authority to decide whether to charge and how much within that ceiling, and the fee exists to keep council involvement a last resort and to deter frivolous or vexatious complaints. The council must decide whether the hedge is adversely affecting the complainant's reasonable enjoyment of their property, weighing the competing interests of complainant, hedge owner and wider community. Where justified it issues a remedial notice specifying the works and a timescale. Both parties may appeal to the Welsh Ministers, with no appeal fee. Failure to carry out the required works is an offence and can be prosecuted and fined.

  13. very strong RN-V98DYX

    Welsh Government

    The Welsh Ministers' statutory SuDS standards (WG36005, 2018, 63 pages), in force with Schedule 3 of the Flood and Water Management Act 2010 from 7 January 2019. They apply to new development of more than one dwelling or where the area covered by construction work equals or exceeds 100 square metres. Six standards, clauses prefixed S, with guidance clauses prefixed G. S1 sets the surface water destination hierarchy: Priority 1 collected for use, 2 infiltrated to ground, 3 discharged to a surface water body, 4 to a surface water sewer or highway drain, 5 to a combined sewer, with levels 4 and 5 only in exceptional circumstances. S2 requires no discharge from the site for the majority of rainfall events of less than 5mm, control of the 1 in 1 year runoff rate to protect receiving-water morphology, control of rate and volume for the 1 per cent (1 in 100 year) event, and consideration of exceedance beyond that. S3 covers water quality treatment for grit, sediments, oils, PAHs, metals and dissolved salts. S4 amenity, S5 biodiversity, S6 buildability, maintainability and structural integrity over the design life.

  14. very strong RN-00CXWJ

    Welsh Government

    The current SAB (SuDS Approving Body) fee schedule for Wales, last updated 24 March 2026. The base fee is GBP 350 per application, plus an area component capped at a total of GBP 7,500: GBP 70 per 0.1 hectare for the first 0 to 0.5 ha, GBP 50 per 0.1 ha from 0.5 to 1 ha, GBP 20 per 0.1 ha from 1 to 5 ha and GBP 10 per 0.1 ha above 5 ha. Where an inspection is required as a condition of approval the fee is GBP 168 per inspection. Discounts: where several proposals are submitted together, the full fee is charged on the highest and half the fee on each additional proposal; town and community council applicants get 50 per cent off the application fee; a resubmission within 12 months attracts a 50 per cent discount calculated on the previously approved fee. No fee is payable where an application is modified by agreement with the SAB before determination. This is the real cost line for any Welsh driveway, patio or garden project over 100 square metres of construction.

  15. very strong RN-DWRRP2

    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.

  16. very strong RN-Y1W23U

    Welsh Government (gov.wales)

    WALES, and the householder figure contradicts both England and Scotland. In force from 1 December 2025, rounded to the nearest pound. Category 6, the enlargement, improvement or other alteration of existing dwellinghouses, is £585 where the application relates to one dwellinghouse and £820 for two or more, against England's £548 from 1 April 2026 and Scotland's £371. Category 7(a), operations including the erection of a building within the curtilage of an existing dwellinghouse for ancillary purposes, or gates, fences, walls or other means of enclosure along a curtilage boundary, is £283 in each case. Category 1 charges £667 for each dwellinghouse for new dwellings, with a £16,675 base fee band above 25 dwellinghouses and a maximum of £203,380. A non-material amendment under section 96A of the Town and Country Planning Act 1990 costs £123 for a householder application and £242 otherwise. Site visits are charged at £493 or £166 per visit depending on category.

  17. very strong RN-VXP99P

    Welsh Government (gov.wales)

    WALES. First published 30 April 2014, last updated 29 May 2020. The Welsh Government's own householder permitted development landing page, hosting three documents that replace England's Planning Portal guidance for a Welsh job: Planning, a guide for householders (688 KB PDF, 2020), Permitted development for householders, technical guidance (2 MB PDF, 2018) and Householder permitted development rights, frequently asked questions (57 KB PDF, 2018). Wales retains the England-style Class A to Class H lettering of the Town and Country Planning (General Permitted Development) Order 1995 as it applies in Wales, unlike Scotland's numbered classes, but the numerical limits inside those classes have diverged from England since 2013.

  18. very strong RN-9N3RD6

    Welsh Government (GOV.WALES)

    The Welsh building control thresholds for garden buildings and garages, expressed as floor areas a note can quote directly. Building regulations do not normally apply to a small detached building such as a garden shed or summerhouse with a floor area under 15 square metres and no sleeping accommodation. Between 15 and 30 square metres approval is not normally required provided the building contains no sleeping accommodation and is either at least one metre from any boundary or constructed of substantially non-combustible materials. A new garage attached to an existing home would normally need building regulations approval, while a new attached carport open on at least two sides would not normally require approval if under 30 square metres. A detached garage follows the same 15 and 30 square metre pattern as a shed. Converting an integral or attached garage into habitable use will normally require approval. The sleeping accommodation exception is the point a garden room note must make, because a garden bedroom takes the building out of exemption entirely.

  19. very strong RN-4LOKE7

    Welsh Government (GOV.WALES)

    The Welsh householder extension limits, which differ from the English Class A allowances and from the prior approval route England uses. Across all extensions: nothing may be built in front of the principal elevation; no more than half the land around the original house may be covered; the extension cannot exceed the height of the highest part of the existing roof, nor the height of the existing eaves; within 2 metres of a boundary the eaves height cannot exceed 3 metres and the extension cannot exceed 4 metres in height; and materials must match the existing house as far as possible. Verandas, raised platforms, roof terraces and balconies are not permitted, though a Juliet balcony is allowed if it has no platform, projects no more than 300mm, is not within 10.5m of the side boundary and is not on the principal elevation. A single storey rear extension must not extend beyond the rear wall by more than 4 metres and cannot exceed 4 metres in height. A rear extension of more than one storey is limited to 4 metres at ground floor and 3 metres at upper floor beyond the rear wall, must leave at least 10.5 metres between the extended rear wall and the rear boundary, and any upper floor side window must be obscure glazed and non-opening unless it is 1.7 metres above floor level.

  20. strong RN-QJNTE7

    BSI

    The British Standard for the ordinary garden panel fence, published 30 September 2018 as BS 1722-11:2006 amended by A1:2018, and current. It specifies materials, design, construction and installation for prefabricated wood panel fences made from softwood panels fixed between timber or concrete posts, and applies only to fences not exceeding 2 metres in height - which lines up with the permitted development ceiling in the GPDO. It covers panel construction and timber species, dimensions and tolerances, post types in timber and concrete with their fixing requirements, wood preservation and protective treatments, and gravel boards. Two limits are worth knowing before specifying: the standard expressly states these fences are unsuitable where they will be exposed to animal or personnel loading, or in areas of abnormally high wind exposure, so a panel fence is not a stock fence and not a coastal or exposed-hilltop solution. Maintenance after installation is outside its scope. Read with BS 1722-7 for post and rail and with Class A of Part 2 of Schedule 2 to the GPDO for the height rules.

  21. strong RN-7Z1GCG

    BSI

    The British Standard for post and rail fencing, published 30 September 2018 as BS 1722-7:2006 amended by A1:2018, and current. It sets requirements for wooden post and rail fence construction covering both sawn and cleft components and their installation: timber quality and species, component dimensions and tolerances, post spacing, rail fixing, preservative treatment, and the quality control and sampling protocols used to verify a delivery. This is the standard for the boundary type a panel fence cannot do - the open rural, paddock and stock boundary, where BS 1722-11 explicitly rules panel fences out because of animal loading. Specify it by part number and the treatment class rather than by 'treated timber', which means nothing on its own: pair it with BS EN 335 use classes and BS EN 350 natural durability, both of which the book already holds, so the preservative specification matches the exposure of a fence post in ground contact.

  22. strong RN-XN2Q2U

    BSI

    The standard a topsoil delivery should be sold against, published 30 April 2015, current, ISBN 978 0 580 85949 6. It applies to natural and manufactured topsoils that are traded or moved between sites, and sets requirements for multipurpose topsoil plus specialist grades: low fertility, acidic and calcareous. It specifies classification and composition - texture class, pH, nutrient and organic matter content, contaminant limits and maximum stone content by size and percentage - along with guidance on sampling and analysis, handling, and site preparation so that soil is not degraded during excavation, transport and placement. The 2015 revision aligned it with BS 8601:2013 (specification for subsoil), revised the test parameters to reflect the increased use of composted green waste in manufactured topsoils, and introduced a new organic matter test that is safer environmentally and for health while costing less to run. Intended users named by BSI include gardeners, builders, developers, engineers, architects, utilities, local authorities and environmental consultancies. 'BS 3882 compliant' on a supplier's website means nothing without the accompanying analysis certificate.

  23. strong RN-0FPT4N

    BSI

    The British Standard for work on established trees, published 31 December 2010 and current. It is a full revision of the previous edition, updated for contemporary legal requirements and industry practice. It gives general recommendations for tree work management, covering pruning, crown reduction, crown lifting and thinning, soil care and felling, and includes guidance on the reduction of overgrown hedges. It deals specifically with veteran trees, where conventional pruning specifications are inappropriate, and requires the impact of work on an individual tree to be considered in relation to neighbouring trees. The 2010 revision widened the scope to bring in safety, wildlife habitats and the underlying factors of tree longevity and value for local amenity, landscape, biodiversity and heritage. This is the standard a tree surgeon's quotation should reference: a quote specifying 'a 30 per cent reduction' without a BS 3998 specification of branch-length reduction and final crown shape is not a specification at all. Read with BS 5837 for trees on construction sites and BS 8545 for new planting.

  24. strong RN-V4658G

    BSI

    The current design half of the restructured BS 7533 series, published 30 November 2021, ISBN 978 0 539 19618 4. It consolidates and replaces the old parts 1, 2, 8, 10 and 12 of the series and partially supersedes parts 6 and 7, which is why so many BS 7533 part numbers still quoted in landscaping specifications are dead. It covers pavements surfaced with concrete paving blocks to BS EN 1338, concrete paving flags to BS EN 1339, natural stone slabs to BS EN 1341, natural stone setts to BS EN 1342 and clay pavers to BS EN 1344. It applies to pedestrian and vehicular areas with axle loads up to 11,000 kg (the limit under the Road Vehicles (Construction and Use) Regulations 1986) and cumulative design traffic up to 30 million standard axles. Out of scope: heavier design traffic, aircraft pavements, port and industrial pavements, bridge decks, suspended slabs, and permeable pavements. Installation is covered separately in BS 7533-102:2025 and permeable construction in BS 7533-103:2026.

  25. strong RN-8WKW2E

    BSI

    The current British Standard for permeable modular paving, published 12 March 2026, and the replacement for the withdrawn BS 7533-13. It covers permeable pavements formed from paving units bedded on and jointed with graded granular permeable aggregates or permeable mortar, where there is a full-depth permeable base and/or sub-base below - that is, a proper SuDS construction rather than a porous surface over an impermeable build-up. Unit types covered are concrete blocks, concrete flags, natural stone slabs and setts, clay pavers and porcelain. It applies to pedestrian and vehicular areas up to 11,000 kg axle loads and 30 million standard axles cumulative design traffic, matching BS 7533-101. It also deals with the limited cases of a permeable overlay on an impermeable base, where water cleansing and attenuation can still be demonstrated. Excluded: traffic above those limits, aircraft pavements, specialised port and industrial areas, tree root protection systems, and impermeable surfaces with a reservoir foundation beneath. This is the standard behind the GPDO front-garden paving exemption.

  26. strong RN-FN2ITH

    BSI

    The test behind the two slip numbers a tile or paving manufacturer quotes, and the reason a floor that tested well when new can still become slippery. Published 28 March 2003 and current. It describes a test method for determining both the unpolished and the polished pendulum test value of surfacing units for pedestrian or traffic purposes, using a flat-bed polishing machine in conjunction with pendulum test equipment, so the unit is artificially worn before the second reading is taken. BSI notes that manufacturers use the pendulum test values obtained by this method to determine the slip and skid resistance of surfacing units. It is the companion to BS 7976 parts 1 to 3, which specify the pendulum tester itself and its method of operation, and it is the standard to cite when comparing a supplier's PTV claim for a floor tile or paving slab: an unpolished value is the best case, and the polished value is closer to what the floor will do in service. ICS 93.080.20 Road construction materials, committee B/507, ISBN 0 580 38096 3.

  27. strong RN-2EDGVE

    BSI

    The current British Standard for getting a newly planted tree to independence, published 27 January 2026, ISBN 978 0 539 37093 5. It is a code of practice covering the planning, designing, producing, planting and managing of young trees through the establishment period, and applies to trees where a distinct crown has already been prepared in the nursery - whips, transplants and seedlings are outside its scope. The A1:2026 amendment supersedes BS 8545:2014, aligns the standard with BS 5837 to remove overlap between the two, carries over technical refinements from the original drafting, and adds new guidance on how climate change affects young trees and on selecting species resilient to future conditions. Aimed at landscape professionals, nurseries, developers, local authorities, forestry organisations and land managers. This is the standard to cite for tree pit specification, staking, irrigation and the aftercare period on a landscaping job, and the companion to BS 5837 which covers existing trees on a construction site.

  28. strong RN-J00YJE

    BSI

    The companion standard to BS 3882 for the layer beneath the topsoil, published 31 December 2013, current but under review. It covers the classification, composition and use of subsoils which are moved or traded to create soil profiles intended to support plant growth, and includes multipurpose subsoil plus acidic and calcareous specialist grades. It sets requirements for classification, texture and stone content, pH, contaminant limits, and specifies sampling and analytical procedures. It matters on any job that changes ground levels: building a soil profile from imported material by tipping topsoil straight onto compacted formation, with no specified subsoil layer, is the standard cause of waterlogged new lawns and failed shrub beds. The 2015 revision of BS 3882 was written explicitly to align with this standard, so the two should be quoted together when specifying imported soil for a garden, raised bed or new lawn.

  29. strong RN-YTQSB5

    BSI

    The test method behind every slip resistance figure quoted for external paving, published 31 October 2011, current but under review, and the live replacement for the withdrawn BS 7976-2 pendulum standard. Slip/skid resistance is measured by a slider mounted at the end of a pendulum arm, swung so the slider passes across a wetted sample of the surface; the method works both in the field and in the laboratory. It assesses a small area, roughly 0.01 square metres, which is why several readings across a patio are needed rather than one. The standard notes real limits: it is unreliable on surfaces with non-uniform characteristics such as ridges, grooves or rough texturing with a mean texture depth exceeding 1.2 mm, so a heavily riven or profiled stone cannot be characterised by pendulum alone. Results from this single-location test cannot be directly compared with measurements from mobile devices that assess slip resistance along an extended length of surface. Where a supplier quotes a slip figure for porcelain, stone or concrete paving, this is the method it should cite, and it should state whether the test was wet or dry and which slider was used.

  30. strong RN-U1L8HY

    BSI

    The product standard for concrete block paving, published 29 May 2003 and still current. It covers unreinforced cement-bound concrete paving blocks and complementary fittings for pedestrian areas, vehicular surfaces, roof coverings, car parks, roads, industrial areas and aircraft pavements, specifying materials, properties, requirements and test methods. Test areas covered include dimensional measurement and tolerances, tensile splitting strength, flatness, water absorption, thermal shock and freeze-thaw resistance with de-icing salt, abrasion resistance and slip/skid resistance, plus marking and evaluation of conformity. Explicitly out of scope: the tactility or visibility of blocks (tactile paving is a separate matter) and permeable blocks, which are dealt with elsewhere. This is the unit standard that BS 7533-101:2021 and BS 7533-102:2025 assume when specifying a driveway or patio build-up, and the one a delivery note or DoP should quote.

  31. strong RN-4A59IK

    BSI

    The product standard for concrete paving flags (slabs), published 29 May 2003, current but under review. It covers cement-bound unreinforced concrete paving flags and complementary fittings for trafficked paved areas and roof coverings, and sets materials, properties, requirements and test methods. Coverage includes dimensional measurement, breaking load classes (the classification that decides whether a flag is fit for pedestrian only or light vehicular use), freezing and thermal-cycling tests, water absorption, wear (abrasion) and slip resistance, plus marking and evaluation of conformity. The UK National Annex is the practically useful part: it gives guidance on which performance classes to select and lists the traditional UK flag sizes so imperial-era slab dimensions can be matched. It excludes the tactility or visibility of flags and permeable flags. Cite this alongside BS 7533-101/102 when specifying a patio.

  32. strong RN-YHR3EQ

    BSI

    The product standard for natural stone setts, published 28 February 2013 and superseding BS EN 1342:2001. It sets performance requirements and test methods for setts used in external paving, both pedestrian areas and trafficked surfaces, covering dimensional tolerances, flexural strength, slip and skid resistance and freeze-thaw durability, so that setts can weather without significant maintenance. The 2012 revision reoriented the requirements to reference the separate test methods developed by CEN/TC 246 and clarified what declared values mean: they are now expressed as lower expected values where applicable, which lets a supplier use one set of test results across several products from the same stone. Read it with BS EN 1341:2012 for natural stone slabs and BS 7533-101:2021 for the pavement design; a sett specification that quotes only a stone type and a size is incomplete without the declared flexural strength and freeze-thaw class.

  33. strong RN-BRGMK8

    BSI

    The product standard for clay pavers, published 30 November 2013, current but under review. It specifies requirements for clay paver units and accessories for flexible and rigid pavement construction, covering rectangular and other shaped units for exterior pavements, driveways, patios and roof paving, with or without coatings and with or without post-firing chemical treatments. Performance characteristics covered are slip and skid resistance (the 2013 edition moved this to the CEN/TS 16165 methodology), transverse breaking load with a revised load-application procedure, freeze-thaw durability, abrasion resistance and thermal conductivity assessed via BS EN 1745. It does not cover clay pavers with tactile surfaces, refractory applications or clay masonry units - a clay paver is not a facing brick and the two are not interchangeable in a driveway. This is the unit standard referenced by BS 7533-101:2021 for clay paver pavements.

  34. strong RN-9AR0KS

    BSI (British Standards Institution)

    The current British Standard for welded mesh security fencing, and the right reference for a security fence note now that the chain link part of the series is withdrawn. BS 1722-14:2006 is Current, published 30 November 2006 under committee B/201, ISBN 0 580 49510 8, and specifies open mesh steel panel fences. This matters for accuracy: BS 1722-1:2006, the chain link fences part, is marked Withdrawn on BSI Knowledge, so a note that cites BS 1722-1 as the live standard for chain link is out of date, and welded mesh panel systems to Part 14 are what a contractor will now quote for security fencing. BS 1722 is a multi-part series with a separate part per fence type, so quote the part number rather than BS 1722 alone.

  35. strong RN-DCG55C

    BSI (British Standards Institution)

    The specification a close-boarded fence quote should be measured against, and the part of BS 1722 that covers the commonest UK garden fence type. BS 1722-5:1999 is Current, published 15 March 1999 and incorporating Amendment No. 1, under committee B/201, ISBN 0 580 28260 0, ICS 91.090. It specifies close-boarded fences and wooden palisade fences, which is where the standard sizes, post spacings, timber grades and preservative treatment expectations come from. Cite it when a fencing note gives a panel or post dimension, and pair it with BS EN 335 use classes for the timber treatment, because a post in ground contact is a different use class from a board above ground. Note the series is split by fence type, so a note comparing fence types is comparing separate parts of BS 1722, not one document.

  36. strong RN-AWIY25

    BSI (British Standards Institution)

    STATUS: WITHDRAWN, and very recently: 27 March 2025. BS 4483:2005 was published 30 September 2005 and specified factory produced, machine welded steel fabric (mesh) sheets for reinforcing concrete, made from ribbed bar to BS 4449:2005 or, for the wrapping fabrics D49 and D98, from wire to BS 4482. It is the standard behind the A142, A193, A252 and A393 mesh references that every concrete slab and driveway note quotes. Because it was withdrawn in March 2025 this is a live correction: notes specifying A142 or A393 mesh to BS 4483 should be checked against the current specification, with product conformity now sitting under BS EN 10080 for weldable reinforcing steel. Catalogue page confirms number, title, publication date, withdrawal date and scope, and names D49 and D98 wrapping fabrics, but does not name the replacement standard.

  37. strong RN-KS3QTV

    BSI (British Standards Institution)

    The standard a local planning authority will require an arboricultural report against whenever a garden building, extension or driveway goes in near a tree, and the reason a tree survey appears as a line in a landscaping quote. BS 5837:2012 was published on 30 April 2012, and is current but under review. It gives recommendations relating to tree care with a view to achieving a harmonious and sustainable relationship between new construction or existing structures and their surrounding trees, following a logical sequence of events with tree care at the heart of the process when a project is planned. It is the source of the tree survey, tree categories, root protection area and tree protection plan terminology that planning conditions use. Cite the catalogue page for the number, title and status; the detailed method sits behind the paywall, so a note should not quote a root protection area formula from a secondary source without checking the standard itself.

  38. strong RN-XKXB9S

    BSI (British Standards Institution)

    STATUS: WITHDRAWN on 27 March 2025, superseded by BS 7533-102:2025. BS 7533-3:2005+A1:2009 was published 20 October 2005 and gave the recommendations for constructing flexible pavements using precast concrete blocks to BS EN 1338 and clay pavers to BS EN 1344, for roads, industrial areas and other paved surfaces under all categories of static and vehicular loading and pedestrian traffic, covering both conventional and permeable construction. It is the standard behind the laying course depth, jointing and compaction advice in every block paving driveway note, so the March 2025 withdrawal is a live correction: those notes should now cite BS 7533-102:2025 for installation and BS 7533-101:2021 for structural design. Catalogue page confirms number, title, publication date, withdrawal date and scope.

  39. strong RN-43IQ1S

    BSI (British Standards Institution)

    STATUS: WITHDRAWN on 25 February 2022. BS 7976-2:2002+A1:2013 was published 20 August 2002 and set out the method of operation for the pendulum tester used to assess slip resistance of pedestrian surfaces, that is how the pendulum test value (PTV) that every tile and flooring note quotes is actually obtained; part 1 covers the instrument specification and part 3 calibration. It excluded road and airfield surfaces, which are covered by BS EN 13036-4, and pendulum testing called up inside other product specifications. Because it is withdrawn, a note that says a bathroom or patio surface should achieve a PTV of 36 or more to BS 7976 is citing a withdrawn standard: the PTV thresholds themselves come from HSE and UK Slip Resistance Group guidance rather than from this standard, which is the more useful thing for a note to cite. Catalogue page confirms number, title, publication date, withdrawal date and scope.

  40. strong RN-7KAKIH

    BSI (British Standards Institution)

    Part 1 of the BS 8300 pair, covering the external environment rather than the building. Paywalled, so only the catalogue page is public; it confirms BS 8300-1:2018, published 31 January 2018, status Current. Scope covers key external features within the curtilage of or associated with a building or group of buildings, specifically parking provision, setting-down points, access routes to and around buildings and the approaches to entrances, plus wider external environment matters including street design, landscaping, way-finding and information, horizontal and vertical movement and public facilities. Its named audience is built environment professionals in planning, design and management of the external environment, particularly local authority planners in highways, street enhancement and open space departments, and the page notes it is used in producing Local Development Frameworks, client briefs and contract documents.