An outdoor shower costs £150–£500 for a simple DIY kit connected to a garden hose, or £800–£4,000+ for a properly plumbed, weatherproofed unit with hot and cold supply. The wide range reflects a genuine fork in what you are actually building: a summer cold rinse after the paddling pool is a very different project from a year-round alfresco shower that a holiday-let or pool house demands.

In the UK, most outdoor showers are cold-supply only (or cold with a solar pre-heat), installed as permitted development without planning permission, and drained to a soakaway rather than the foul drain, which is common practice rather than what the drainage rules actually prescribe. That keeps costs manageable. This guide covers both ends of the spectrum with realistic 2026 figures for each component.

Types of Outdoor Shower

Cold-water garden tap kit: The simplest option. A freestanding or wall-mounted unit fed from a standard outside tap (or a garden hose connection). The water is cold (or ambient-warmed in summer), and drainage is either into a drain gulley or dispersed across a gravel bed. Kits typically include the shower head, riser pipe, and a simple shut-off valve.

Solar-heated outdoor shower: Uses a black water tank (typically 20–35 litres) mounted at height, heated by direct sunlight. On a warm UK summer day this can reach 35–45°C. Suitable for gardens, allotments, and camping pitches. No connection to mains hot water needed.

Mains hot-and-cold outdoor shower: Properly plumbed to the household’s hot and cold supply, with a thermostatic bar valve (identical to an indoor shower). This is a legitimate year-round shower, genuinely useful alongside a pool, sauna, or hot tub, or in a holiday let. Requires a qualified plumber for the connection and pressure balancing.

Custom-built enclosure: Any of the above combined with a built enclosure, timber frame, masonry walls, or composite panels, that provides privacy and wind shelter. These account for most of the higher-end costs.

Planning Permission

Most outdoor showers are permitted development in England and do not require planning permission, provided any structure meets the Class E conditions for buildings incidental to the enjoyment of a dwellinghouse.1 Those conditions are:

  • The shower enclosure (if any) is no taller than 2.5 m within 2 m of a boundary, and elsewhere no more than 4 m with a dual-pitched roof or 3 m with any other roof, with eaves no higher than 2.5 m
  • It, with every other outbuilding, does not cover more than 50% of the curtilage, leaving the ground area of the original house out of the sum
  • It is not forward of the principal elevation of the house
  • On designated land, a conservation area, National Landscape (formerly AONB), National Park, the Broads or a World Heritage Site, anything more than 20 m from the house is capped at 10 m² in total, and nothing may sit between a side wall of the house and the boundary
  • The property is not a listed building (listed building consent required for any external works affecting character)

Check with your local planning authority before starting if the property has any designations. The Planning Portal at planningportal.co.uk has a permitted development checker.

Building Regulations approval is not generally required for a simple shower unit, but the drainage matters. Part H counts water that has been used for washing as foul water, and the destinations it allows for foul water are a public sewer, a private sewer, a septic tank or other treatment system, or a cesspool.2 A soakaway is not on that list, which is the single most misunderstood point about outdoor showers and is discussed in the drainage section below.

Hot Water Supply Options

Supply MethodTypical CostNotes
Cold tap / hose only£0 additionalSeasonal use only for most people
Solar heating tank (20–35 L)£100–£350 for tankAmbient summer temperatures; no running cost
Extended pipe run from house (hot + cold)£400–£1,200 for pipework + plumberRequires insulation for year-round use
Dedicated outdoor electric shower£250–£600 unit + £300–£600 installRequires Part P-compliant electrical work; RCD protection essential
Electric heat pump supplement£600–£1,500Rarely used for outdoor showers; overkill for most

Running a pipe from the house is the most popular route for a usable year-round outdoor shower. An underground water supply pipe must be laid no less than 750 mm and no more than 1,350 mm deep, to limit both freezing and mechanical damage, or heavily lagged if it is surface-run.3 An uninsulated pipe run in an exposed location will freeze in a British winter.

Drainage Options

This is where UK outdoor showers differ most from warmer climates. The UK has persistent rainfall and clay-heavy soils in many regions, so drainage must be properly considered.

Soakaway: The common option for a cold outdoor shower producing low volumes of waste water (shower water without soap or chemicals). You dig a pit (typically 1 m × 1 m × 1 m minimum, filled with rubble or a proprietary crate system) and feed shower run-off into it. Be clear about what this is, though: the 5 m separation from a building that everyone quotes comes from Part H’s rules for rainwater infiltration devices, not from its foul water rules, and shower water is foul water.2 Putting it into the ground is a discharge to ground, which the Environment Agency regulates through the general binding rules for small sewage discharges rather than through building control.4 Not suitable for heavy soap use, as detergents can damage the soil’s permeability over time.

Grey water dispersal: Some homeowners use shower water on garden beds via a simple diversion pipe. Part H expressly steps back from water diverted for re-use after personal washing, so collecting and reusing it is outside the drainage rules altogether.2 Ecologically fine for biodegradable soap; inadvisable if you use shampoos or synthetic surfactants directly on planting.

Connecting to foul drain: The route Part H actually prescribes. It ties the outdoor shower into the household drainage system so all waste water goes to the sewer. It needs your sewerage undertaker’s consent for the connection and typically involves cutting into an existing inspection chamber. Cost: £300–£800 for a plumber including materials, depending on how far the shower is from the nearest foul drain run.

Trapped surface drain: For showers set in a paved area, a standard ACO or surface drainage channel can collect the water. This must then outlet to either a soakaway or foul drain, it does not resolve the destination question, only the surface collection.

Materials and Weatherproofing

UK weather demands proper material selection for any outdoor installation that is meant to last.

Stainless steel (316 marine grade): The premium choice. Resistant to corrosion in coastal and inland settings. Shower heads, risers, and thermostatic valves in 316 stainless will last 15–25+ years with minimal maintenance. More expensive than chrome or painted steel.

Teak and hardwood: Traditional for tropical-look showers. In the UK climate, teak requires annual oiling to maintain its colour (untreated it goes silver-grey, which many people prefer). Softwood is not suitable unless heavily treated and regularly maintained.

Composite decking: Commonly used as the shower floor in custom enclosures. Low maintenance, splinter-free, and available in a range of colours. Lay with gaps between boards to allow water to drain.

Powder-coated steel: Cheaper than stainless but vulnerable to rust if the coating chips. Suitable for a cold-supply summer shower; not recommended for year-round hot-water use in a UK coastal garden.

Masonry enclosures: Brick or blockwork with a render finish is the most durable enclosure material. Requires footings, and 450 mm is the minimum depth Approved Document A sets for a strip foundation to keep it clear of frost, more on shrinkable clay.5 It may also need Building Regs notification depending on size.

Full Cost Breakdown

ItemBudgetMid-RangePremium
Shower unit / kit£150–£300£400–£900£1,000–£3,000+
Hot water connection (plumber)-£400–£800£600–£1,200
Drainage (soakaway DIY)£80–£200£200–£400£400–£800 (foul drain)
Enclosure / privacy screen-£300–£800£1,500–£5,000+
Decking or paved base£100–£300£400–£800£800–£2,000
Electrical (if electric shower)-£300–£600£400–£800
Total£330–£800£1,700–£3,700£4,300–£12,000+

The premium end covers bespoke masonry enclosures with natural stone, thermostatic hot-and-cold supply, full privacy screening, concealed drainage, and external lighting. These are effectively outdoor wet rooms.

Plumber Day Rates (2026)

Connecting an outdoor shower to mains hot and cold supply is a half-day to one-day job for a qualified plumber, depending on pipe run distance and access.

  • Plumber day rate (2026): £250–£400/day in London; £180–£280/day outside London6
  • Typical pipe run and connection job: 4–7 hours = £130–£320 in labour plus materials
  • Part P electrical sign-off (if electric shower added): £80–£150 additional

All work on mains plumbing supply must be done by a competent person (ideally WaterSafe registered). An outdoor electric shower needs a new circuit, and a new circuit is notifiable under Part P: either a registered competent person self-certifies it, or you notify building control yourself before the work starts.7 A dedicated RCD and IP-rated switch gear are not optional outdoors.

Seasonal vs Year-Round Use

A cold-supply summer shower (May–September use) can be as simple as a wall-mounted head on a garden tap extension, total cost under £200 including installation. Freeze the pipework risk away by draining it at end of season.

A year-round shower needs: insulated pipe runs, a frost-stat or drain-down valve to protect the supply pipe in winter, a thermostatic bar valve to prevent scalding and maintain consistent temperature, and a shower head rated for outdoor use (IP55 or higher). These additions add £300–£800 to the project cost but make the shower genuinely usable in the UK’s 9-month non-summer.

Key Questions Before You Start

  • Do you want hot water? This single decision more than doubles the project cost.
  • Where will the waste water go? Establish your drainage route before ordering anything.
  • Is your property designated? Designation does not switch permitted development off outright, but on designated land anything more than 20 m from the house is capped at 10 m² and nothing may go beside the house, and listed building consent is a separate question on top.
  • How private is your garden? Even permitted-development structures need to respect neighbour amenity, a first-floor-height shower enclosure visible from neighbouring gardens can trigger an enforcement enquiry regardless of technical compliance.
  • Will it serve guests or tenants? A holiday let outdoor shower must meet the same safety standards as indoor ones, thermostatic valve, anti-scald protection, and documented electrical sign-off.
References (7)

Figures in this note were checked against the sources below on 10 September 2026. Superscript numbers in the text point to them. Every source the site cites, by topic.

  1. 1technicalvery strongThe National Archives (legislation.gov.uk), legislation.RN-J6L7TIThe primary legal text for garden rooms, sheds, summerhouses, pergolas, greenhouses and outdoor pools. Class E permits any building or enclosure, swimming or other pool within the curtilage required for a purpose incidental to the enjoyment of the dwellinghouse, plus a domestic heating oil container. Limitations: E.1(b) buildings, enclosures and containers other than the original dwellinghouse must not cover more than 50% of the curtilage; E.1(c) nothing forward of a wall forming the principal elevation of the original dwellinghouse; E.1(d) single storey only; E.1(e) maximum height 4 metres with a dual-pitched roof, 2.5 metres if any part is within 2 metres of a curtilage boundary, otherwise 3 metres; E.1(f) eaves no higher than 2.5 metres; E.1(g) not within the curtilage of a listed building; E.1(h) no verandah, balcony or raised platform; E.1(j) oil containers capped at 3,500 litres. E.4 defines incidental use as including keeping poultry, bees, pet animals, birds or other livestock for domestic needs or personal enjoyment, which is why a garden room used as a separate dwelling falls outside Class E.
  2. 2technicalvery strongMinistry of Housing, Communities and Local Government.RN-SM6TRWThe statutory source for soakaway design and the discharge hierarchy every garden drainage note should state. Requirement H3(3) lists the order of priority for rainwater discharge: (a) an adequate soakaway or other adequate infiltration system, or where not reasonably practicable (b) a watercourse, or where not reasonably practicable (c) a sewer. Paragraph 3.25 bars infiltration devices within 5 metres of a building or road, in ground where the water table reaches the bottom of the device at any time of year, too close to other drainage fields or soakaways, or where contamination could pollute groundwater. Paragraph 3.26: soakaways serving less than 100 square metres are generally square or circular pits filled with rubble or lined with dry-jointed masonry or perforated ring units. Paragraph 3.27: design to a return period of once in ten years, and for small soakaways serving 25 square metres or less a design rainfall of 10mm in 5 minutes may be assumed as the worst case. Paragraph 3.28 requires percolation tests to derive the infiltration rate, and paragraph 3.30 sends larger soakaways to BS EN 752-4 or BRE Digest 365 Soakaway design. Paragraphs 2.10 to 2.12 cover pervious paving over a granular storage reservoir and warn against its use where sediment or oil spillage would block the pores. For foul drainage, paragraph 2.33 sets a minimum 75mm internal diameter, or 100mm for a WC, and Table 6 gives minimum gradients of 1 in 40 for 75mm and 100mm at peak flows under 1 litre per second.
  3. 3technicalstrongWaterRegsUK (Water Regulations Advisory Scheme).RN-MVR3NJThe depths and protections that decide whether a new supply or a bathroom pipe run is compliant. Below ground, a water supply pipe must be laid not less than 750 mm deep and no greater than 1350 mm deep, to limit both freezing and mechanical damage; where a shallower run is unavoidable it needs the local water undertaker's consent and must be as deep as possible with added protection against warming, freezing and mechanical damage. Pipes and fittings must be suitable for below ground use, joints kept to a minimum, and the pipe embedded in non-abrasive material. Non-metallic fittings must not be in contact with soil contaminated by diesel, heating fuel, pesticides or similar substances. Insulation, installed to manufacturer instructions and to BS 5422 or BS EN ISO 12241, may delay but will not prevent freezing, so depth and routing do the real work. Above ground, pipework must remain accessible for maintenance and replacement, and concealed joints should be used only where unavoidable because they lose integrity over time. The page names Schedule 2 paragraph 7 for pipework and paragraphs 8, 9, 11, 12, 13 and 14 for system design and installation.
  4. 4technicalvery strongEnvironment Agency, a government page.RN-YW0MX4The Environment Agency's guide to when a water discharge activity or groundwater activity permit is needed, last updated 20 April 2026, and the check to make before piping garden or driveway water anywhere other than a sewer. A permit is required to discharge liquid effluent or waste water to surface waters - rivers, streams, estuaries, lakes, canals and coastal waters - or to groundwater, which includes discharging treated sewage through an infiltration system. Waste water is defined broadly to include poisonous, noxious or polluting matter as well as trade or sewage effluent. The exemptions are what matter for domestic landscaping: discharging uncontaminated water such as clean rainwater from roofs to surface water needs no permit, nor does uncontaminated water from small hardstanding areas or public roads passed through oil separators; certain low-risk groundwater activities, discharges to enclosed lakes and ponds meeting set criteria, and domestic sewage meeting the general binding rules are also exempt. Volume bands used to select the application form are up to 15 cubic metres a day to ground and up to 20 cubic metres a day to surface water; these are form categories, not blanket exemptions.
  5. 5technicalvery strongMinistry of Housing, Communities and Local Government (GOV.UK).RN-Z6AXUWThe full Approved Document A PDF, which carries the deemed-to-satisfy tables a domestic project is checked against. Section 2E covers foundations of plain concrete: paragraph 2E3 gives the recommended minimum widths of strip foundations in Table 10, keyed to ground type and total load of loadbearing walling per linear metre. Table 10 sets, for rock (not inferior to sandstone, limestone or firm chalk, requiring at least a pneumatic or mechanically operated pick to excavate), a width equal to the width of the wall at every load. For medium dense gravel or sand (requires a pick to excavate, a 50mm square wooden peg hard to drive beyond 150mm) and for stiff clay or stiff sandy clay (can be indented slightly by the thumb), the minimum widths are 250mm at 20 kN per linear metre, 300mm at 30, 400mm at 40, 500mm at 50, 600mm at 60 and 650mm at 70. Firm clay and firm sandy clay (thumb makes an impression easily) start at 300mm. The document also covers minimum depth of strip foundations, wall thickness rules for residential buildings up to three storeys (paragraph 2C10 covers internal loadbearing walls in brickwork or blockwork), buttressing, lateral support by floors and at roof level, interruption of lateral support, wall cladding in Section 3, and Section 5 on reducing sensitivity to disproportionate collapse with the building consequence classes.
  6. 6costvery strongOffice for National Statistics.RN-MMT1DOA price, true at 2026-01. The ASHE Table 14 dataset gives annual estimates of paid hours worked and earnings for UK employees by sex and by full-time or part-time status, broken down to four-digit Standard Occupational Classification, which is the level that isolates individual construction trades such as bricklayers, carpenters, plasterers and electricians. Released 23 October 2025 as the 2025 provisional edition (zip, about 10.7 MB), with revised and provisional editions back to 2017. A correction dated 19 December 2025 suppressed annual pay estimates for SOC 3312 police officers in some areas; construction occupations are unaffected.
  7. 7technicalvery strongMinistry of Housing, Communities and Local Government.RN-JYJ3I5The document that decides what electrical work a homeowner may legally do themselves, and the exact list of notifiable jobs. Regulation 12(6A), reproduced at paragraph 2.5, makes only three things notifiable: the installation of a new circuit, the replacement of a consumer unit, and any addition or alteration to existing circuits in a special location. Regulation 12(9) defines special location as, in a room containing a bath or shower, the zone extending vertically from finished floor level to 2.25 metres (or the shower head position if higher) and horizontally 600mm from the edge of the bath tub or shower tray. Paragraph 2.7 states that all other electrical installation work is not notifiable, namely additions and alterations to existing installations outside special locations, and replacements, repairs and maintenance anywhere. Paragraph 2.8 gives worked examples: a built-in cooker is not notifiable unless a new cooker circuit is needed, and connecting an electric gate or garage door to an existing isolator is not notifiable but running a new circuit from the consumer unit to that isolator is. Paragraph 2.2 confirms Part P reaches outdoor work including fixed garden lighting, pond pumps and outbuildings such as sheds, detached garages and domestic greenhouses. Notifiable work must be certified by self-certification by a registered competent person, third-party certification, or a building control body (paragraph 3.1), with the compliance certificate issued within 30 days (paragraph 3.4). Note that Approved Document P is a source of guidance rather than a ban: non-notifiable work still has to comply with BS 7671.

  1. The Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 1, Class E: buildings etc. incidental to the enjoyment of a dwellinghouse, legislation.gov.uk, accessed 10 September 2026. legislation.gov.uk

  2. Approved Document H, Drainage and waste disposal, 2015 edition, Ministry of Housing, Communities and Local Government, accessed 10 September 2026. assets.publishing.service.gov.uk

  3. Installing pipework, WaterRegsUK, accessed 10 September 2026. waterregsuk.co.uk

  4. Discharges to surface water and groundwater: environmental permits, GOV.UK, accessed 10 September 2026. gov.uk

  5. Approved Document A: Structure (2013 edition, incorporating 2004, 2010 and 2013 amendments), Ministry of Housing, Communities and Local Government, accessed 10 September 2026. assets.publishing.service.gov.uk

  6. ASHE Table 14.6a, hourly pay excluding overtime by occupation, 2025 provisional, Office for National Statistics, accessed 15 September 2026. Priced at 2026-01, so no calibration is needed. ons.gov.uk

  7. Approved Document P, Electrical safety, Dwellings, 2013 edition, Ministry of Housing, Communities and Local Government, accessed 10 September 2026. assets.publishing.service.gov.uk