Bathroom renovation in South End Green and the Vale of Health
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Bathrooms and en-suites for houses, cottages and flats near South End Green and the Vale of Health, from semi-basement shower rooms to top-floor bathrooms, with the soil route settled first.
Camden asks owners to mend original gutters, downpipes and outside pipes, or put back exact copies, so a bathroom near the Heath often starts by working with the pipes the house already has.
We find the soil stack, the drainage falls and the extract route on site before the bathroom layout is drawn.
Source: Camden Planning Guidance: Home Improvements (January 2021)
Soil Pipes and Outside Pipework
Camden's guidance keeps new pipework off the front where it can, placing it on side and rear walls and grouping the runs in one discreet position.
In a conservation area, any new outside pipe fixed to a wall or roof slope that fronts a road, on the main or a side elevation, is something the guidance says needs planning permission.
Where an original cast-iron stack survives at the back, we connect to it and repair it rather than adding a second pipe.
Source: Camden Council: Home Improvements, Camden Planning Guidance (January 2021)
Building Regulations, Fans and Ventilation
Approval under the building regulations may be needed, GOV.UK says, where a bathroom brings new plumbing or where electrics change close to the bath or shower.
Approved Document F asks for any existing bathroom fan to be kept or replaced during the work, and for retained ventilation to be checked.
Where the room had no ventilation system to begin with, Document F does not insist on one, provided the work does not make the building's ventilation worse against the requirements.
A like-for-like swap of the bath, WC, basin or sink falls within the work GOV.UK treats as exempt.
Sources: GOV.UK: Building regulations approval, Approved Document F, Volume 1: Dwellings (2021 edition), GOV.UK: when you don't need building regulations approval
Large Baths, Warm Floors and Leases
Installing a bath of more than 230 litres means giving notice to the water company under regulation 5 of the Water Supply (Water Fittings) Regulations 1999, and waiting for its consent.
Heating pipes laid through a neighbouring flat's floor or ceiling need the landlord's agreement when the landlord owns that shared structure, according to LEASE.
Some leases forbid cutting into external walls, which would rule out a new hole for a waste pipe even where other alterations are allowed.
Sources: The Water Supply (Water Fittings) Regulations 1999, regulation 5, LEASE: Alterations and home improvements
Bathrooms in Listed Houses and Cottages
The listed cottages in the Vale of Health and the listed houses on South End Road are protected inside as well as out: Camden says every part of a listed building is covered, later additions included.
A listed bathroom therefore needs its own consent from Camden, which sits apart from any planning application.
In a listed house we plan new pipe runs under existing floorboards or in boxed-in corners, so historic walls and joinery are not cut.
Camden is unlikely to accept work that removes historic parts or blurs the original layout, and it places the upkeep of a listed building on its owner.
Sources: Camden Council — Hampstead Conservation Area Statement (agreed 31 October 2001), Camden Council: Listed buildings, Camden Council: Maintenance and building works of listed buildings
Shower Rooms on a Lower Floor
Below street level, the existing drain can run higher than the new shower tray. We level the drain run on site first; where gravity will not work, a pumped waste connection is designed with access for servicing.
Lower floors also need a ventilation route that does not end at a lightwell window, and tanking or a membrane where the walls are below ground, so we test the walls for moisture before the tiles are chosen.
When the house has no second bathroom, we plan a temporary shower or WC with you and do the loud demolition at the start of the job.
Hampstead flats where we renovated two bathrooms' worth of space
These completed Hampstead flats each have two bathrooms; their case studies cover the whole flat, which is all we state here.
Questions about a bathroom near the Heath
Can I add a soil pipe on the outside of my house?
On an elevation facing a road in a conservation area, the pipe would need planning permission; Camden steers new pipework to the side or rear wherever it can.
Does replacing a bathroom suite need building regulations approval?
A straight swap of the fittings is exempt. Approval can come in when the work adds plumbing or alters electrics near the bath or shower.
What happens to my existing extract fan?
It stays or is replaced; Approved Document F asks for existing bathroom fans to be retained or replaced.
Can I have underfloor heating in a flat?
Yes, but if the pipes would pass through another flat and the landlord owns the shared floor, LEASE says the landlord's permission is needed.
My cottage in the Vale of Health is listed. What needs consent?
Changes inside it as well as outside, because Camden's protection covers the whole building; that consent is separate from planning permission.
What does a bathroom renovation near the Heath cost?
Near South End Green and the Vale of Health the type of property sets the cost: a semi-basement shower room and a top-floor bathroom pose quite different drainage problems. Camden asks owners to mend original gutters, downpipes and outside pipes or put back exact copies, so the work often has to use the pipes the house already has. Waterproofing, extraction and finishes follow. We look at the room, settle the scope and specification with you, and then give you a written quotation.
Sources: Camden Council: Home Improvements, Camden Planning Guidance (January 2021), GOV.UK: when you don't need building regulations approval, GOV.UK: Building regulations approval, Approved Document F, Volume 1: Dwellings (2021 edition), LEASE: Alterations and home improvements, Camden Council: Listed buildings
Sources
- Camden Planning Guidance: Home Improvements (January 2021)
- GOV.UK: Building regulations approval
- Approved Document F, Volume 1: Dwellings (2021 edition)
- GOV.UK: when you don't need building regulations approval
- The Water Supply (Water Fittings) Regulations 1999, regulation 5
- LEASE: Alterations and home improvements
- Camden Council — Hampstead Conservation Area Statement (agreed 31 October 2001)
- Camden Council: Listed buildings
- Camden Council: Maintenance and building works of listed buildings
Bathrooms in South End Green and Vale of Health homes
Camden's Hampstead statement records houses with semi-basements on the west side of South End Road and, in the Vale of Health, a terrace at Byron Villas that mostly has semi-basements.
South End Green and the Vale of Health both lie in the Hampstead Conservation Area. On the land edged red on its plan, Camden's Article 4(1) direction for that area removes permitted development rights for installing, altering or replacing a chimney, flue or soil and vent pipe on a house where it would be visible from a public highway, private street or other publicly accessible space.
We trace the existing soil stack, drainage falls and extract route on site before choosing where the bathroom goes, including at semi-basement level.
Sources: Camden Council — Hampstead Conservation Area Statement (agreed 31 October 2001); Camden Council — Article 4(1) Direction, Hampstead Conservation Area (excluding Frognal Way), confirmed 9 June 2026 (scanned PDF; quotes transcribed from the page images)
For homes in Hampstead village itself, see bathroom renovation in Hampstead.
More Services in Hampstead Heath
Book a feasibility visit
We look at the room and the floor beneath it, trace where the water, waste and extract could run, and talk through layout options and what the room might cost. The visit costs nothing.
Your bathroom, briefly
One room is enough: say which bathroom and what you would change.
Hampstead Heath history & architecture
Background on the streets, buildings and conservation history of Hampstead Heath: Famous Residents of Hampstead Heath · Best Streets for Family Homes in Hampstead Heath · Connectivity and NW3 Property · The Mock-Tudor Revival in Hampstead Heath · The Cafe Culture of South End Road · The Development of Hampstead Heath Hospitals
Completed renovation project examples
