Bathroom
renovation
in Great Missenden, HP16
Designers, Architects, Engineers & Builders Under One Roof.
One Studio. One Contract. One Team.
Most of a Great Missenden bathroom is settled behind the tiles: the route the waste takes, how the fan reaches fresh air and which circuits run near the water, often in buildings whose walls and floors need careful handling.
In the Chilterns tradition the board's design guide describes, a cottage was a plain building of one and a half storeys under a low, dormered roof, seldom deeper than a single room. Fitting a bathroom upstairs in a building like that means working round sloping ceilings and a narrow plan, so the soil pipe and wastes are routed before anything else is decided.
Not every bathroom here is in a detached house: the ward also had 858 semi-detached and 782 terraced households at the 2021 Census. In those, a bathroom can back onto next door's wall, and cutting into that wall is party wall work.
Sources: Chilterns Conservation Board: Chilterns Buildings Design Guide (published February 2010); ONS/Nomis: Census 2021 TS044 Accommodation type, 2022 ward Great Missenden (E05013147); GOV.UK: Party walls and building work (printable guide)
Bathroom work that goes through building control in Great Missenden
Two bathroom jobs appear on the government's list of work that can need sign-off: putting in a bathroom that involves plumbing, and changing electrics near a bath or shower. Simply swapping a bath, toilet, basin or sink is on its exempt list.
On the electrical side, Approved Document P treats three things as notifiable: a new circuit, a new consumer unit and any change to circuits in a special location. Beside a bath or shower that location runs 0.6 metres out from the edge of the tub or tray and 2.25 metres up.
Tradespeople on a competent person scheme certify what they install, so nothing more is needed from you for those items. Everything else is submitted to Buckinghamshire Council's building control service or to a private registered building control approver.
Sources: GOV.UK: Building regulations approval - when you need approval; GOV.UK: Building regulations approval (printable guide); GOV.UK: Approved Document P: Electrical safety - dwellings, 2013 edition
Extract fans and getting air outside
For a bathroom fan that runs when needed, Approved Document F's floor is 15 litres per second. Work in the room means keeping or renewing any fan already there; a room built without any ventilation is not obliged to gain it, unless the job would make the building less compliant with the ventilation rules than it was.
Getting the duct and the waste outside is where the village matters. On an old elevation every pipe shows, and the board's design guide asks for black painted cast metal, not uPVC, for external guttering and pipework.
Sources: GOV.UK: Approved Document F, Volume 1: Dwellings, 2021 edition; Chilterns Conservation Board: Chilterns Buildings Design Guide (published February 2010)
En suites and bathrooms on upper floors
Approved Document E's requirement E2 concerns sound within a home: internal floors, and internal walls between a bedroom or a room with a WC and the rooms beside it. Its own exceptions include any wall with a door in it and the wall between an en suite toilet and the bedroom it serves, though we line a new stud wall there all the same.
Older floors are checked before they carry a bath. Joists notched for earlier pipe runs, or a timber frame inside a wall, decide where a waste can travel, and our structural engineers survey them before any fitting is placed.
Listing changes the order of work. Consent may be required for works to a listed building, which can decide where a bathroom sits and how its pipes cross historic fabric, and the planning data service counts 58 list entries within the conservation area.
Sources: GOV.UK: Approved Document E: Resistance to the passage of sound; GOV.UK (Planning Practice Guidance): When is permission required?; planning.data.gov.uk (MHCLG, Historic England data): listed buildings within the Great Missenden conservation area (entity 44010519)
Our team for a Great Missenden bathroom
Bathrooms and en suites in Great Missenden and Prestwood are drawn by our London team's in-house architects and designers, with our structural engineers checking floors and openings and Hampstead Chartered Surveyors & Building Consultancy available to survey the building first. Any planning or listed building application goes to Buckinghamshire Council; the work is run from the Finchley Road studio in Hampstead, NW3.
Downstairs bathrooms by the Misbourne need extra thought. Several Church Street properties sit in Flood Zone 2 in the 2018 assessment, so there we lift sockets and controls and pick finishes that can take a soaking.
Outside Great Missenden, and in London rather than Buckinghamshire: Project example: Maida Vale, W9. That project of ours was a whole-house refurbishment of a Victorian townhouse; its case study records bathrooms installed within that same refurbishment, the services to them routed in the renewal.
Sources: legislation.gov.uk: The Buckinghamshire (Structural Changes) Order 2019 (SI 2019/957), Part 2, as made (22 May 2019); ONS Open Geography Portal: Parish to Ward to Local Authority District (December 2019) Lookup in England and Wales (query); Chiltern and South Bucks District Councils: Strategic Flood Risk Assessment Level 1 (November 2018); Hampstead Renovations: Victorian Townhouse, Maida Vale W9 case study
Bathroom Renovation in Great Missenden: Questions
Which bathroom works in Great Missenden need building regulations approval?
Fitting a bathroom with new plumbing, altering electrics close to a bath or shower and adding a circuit all come under the regulations; exchanging a bath, toilet, basin or sink for a new one does not. Submissions go to Buckinghamshire Council's building control service, or else to a private registered building control approver, except where an installer on a competent person scheme certifies the work.
Can an en suite or second bathroom go on an upper floor of a Great Missenden house?
Generally yes, once the joist layout, the drop for the waste and the fan duct have been worked out. We check the joists and the fall to the soil stack first, and a listing can bring listed building consent into it.
Which fan and wiring rules does a Great Missenden bathroom have to meet?
An intermittent fan has to extract at least 15 litres per second under Approved Document F. Approved Document P makes it notifiable to add to or alter circuits in the zone round a bath or shower, which reaches 0.6 metres from the tub or tray.
Does a bathroom in a listed Great Missenden building need consent?
Possibly. Listed building consent may be required for works to a listed building, and the village conservation area alone holds 58 list entries. We confirm the listing early and run pipes and ducts to disturb as little old fabric as we can.
How is a Great Missenden bathroom scoped and priced?
We survey the room and the floor below, work out where soil pipe, wastes and fan duct can run, then draw the layout. The quote follows those drawings, with sanitaryware, tiling and electrics itemised.
Does bathroom work in a semi or terrace need a party wall notice?
Only when the work reaches the shared wall, cutting into it for instance. Small jobs such as plastering, rewiring, new sockets and fixings for shelves or cabinets need no notice.
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