House renovation
and refurbishment
in Hampstead, NW3
Architects, Engineers, Surveyors & Builders Under One Roof.
One Studio. One Contract. One Team.
Independent surveying by our sister practice, Hampstead Chartered Surveyors (RICS Firm No. 923064)Hampstead's houses run from the 18th-century houses between Church Row and Upper Terrace, through the early-1800s cottages and villas of Keats Grove and Downshire Hill, most of them listed, to the red-brick houses of Frognal. Under the 2026 Article 4 direction, work to the front of most of them, from a replacement window to a rooflight, can now need planning permission, so the street elevation is settled before the scope is priced.
Dating a Hampstead house before the design
Camden's conservation area statement, agreed by the Executive on 31 October 2001, splits Hampstead into eight sub areas, from Heath Street/High Street and Christ Church/Well Walk to Frognal, Branch Hill/Oak Hill and the outlying North End, Vale of Health and The Elms. West of Heath Street, between Church Row and Upper Terrace, it records the largest concentration of 18th-century houses in the conservation area.
Keats Grove, Downshire Hill and the stretch of South End Road joining them were built up in the early 1800s around St John's chapel. Most of their houses date from that time and are listed, from tiny cottages to substantial villas in brick or stucco.
Frognal is later: much of it, with Frognal Lane, Frognal Gardens, Frognal Way and Frognal Rise, consists of late 19th and 20th-century houses in large, well-treed gardens, most in red brick and the earlier ones generally Arts and Crafts, with red tiled roofs and chimneys. On the 19th-century streets, Camden's guide notes red and yellow brick houses that still have original windows and doors, decorative details, front gardens, boundary walls and railings.
The conservation area was designated on 29 January 1968, together with North End, the Elms, Vale of Health and Downshire Hill.
Sources: Camden Council: Hampstead Conservation Area Statement (2002), Camden Council: Hampstead Conservation Area Design Guide (updated June 2026)
The front, the roof and the garden wall
Camden's Hampstead design guide, updated in June 2026, says an Article 4 direction now covers most properties in the conservation area, so some work that used to need no planning permission now does. It applies only to fronts and street-facing sides, where it brings in replacing part or all of any window or door, roof and chimney alterations including a rooflight, a flue or soil and vent pipe, and building, altering or demolishing a front gate, wall or fence or a front hard surface.
Two things stay simple: like-for-like repair and replacement needs no planning permission under the direction, and the guide says applications made because of the direction currently carry no fee. Frognal Way has its own direction and fact sheet, listed separately on Camden's Article 4 page.
The 2001 statement says planning permission is required for roof alterations at the front, rear and side, and notes that some roof-level changes have harmed the conservation area. Where replacement is the only option, it asks for materials that closely match the original, generally natural ones, finds concrete roof tiles, artificial slate and PVCu windows unacceptable, and says the Council will resist any further loss of front boundary walls or front gardens turned into hardstanding for parking.
At the back, the statement wants a rear extension to be as unobtrusive as possible and, in most cases, no more than one storey high, with its effect on neighbouring properties and the conservation area deciding whether it is suitable.
Sources: Camden Council: Hampstead Conservation Area Design Guide (updated June 2026), Camden Council: Article 4 directions (heritage and conservation), Camden Council: Hampstead Conservation Area Statement (2002)
From first visit to site: a Hampstead house
The first step is a feasibility visit, followed by a measured survey that records floor levels and the doors, fireplaces and cornices worth keeping. The address is then checked against Camden's Article 4 schedule and the list entry before any layout is drawn.
Drawings for any front, roof or rear change come from our in-house architects, and openings, beams and anything below ground are designed by our in-house structural engineers. Where a party wall survey or a condition report is needed, independent surveying comes from our sister practice, Hampstead Chartered Surveyors & Building Consultancy.
A written quotation follows the survey and scope. Work on the house begins once the consents it needs are in place, following the sequence fixed at design stage.
The four briefs we hear most often in Hampstead
Most Hampstead house projects begin from one of four starting points. Each changes what we check first.
- A period house that has not been touched for decades
- We survey the house, agree the scope and the approvals the address needs, then strip out and rebuild the structure, services, kitchen, bathrooms and decoration in one programme, so you move into a finished home.
- A family that needs more room
- We pair the refurbishment with an extension, a loft or a lower-ground room, designing planning, party wall notices and structure together so the new space and the existing house are built in the same programme.
- A house split into flats, or a flat within one
- We read the lease first and prepare what the landlord or managing agent will want to see; the flat renovation page explains that route.
- A listed or conservation-area home
- We start from the heritage and planning route: listed building consent where the building is listed, the conservation-area rules on the street front, and materials chosen to match what is there.
Basements, party walls and getting materials in
A basement in Camden needs a Basement Impact Assessment submitted with the planning application, which the Council generally has independently audited, and whatever the scale of the work, Camden says the engineering input behind it must be evident in that assessment. Hampstead's statement adds that new front basement areas will generally be resisted, and that extending into a basement area is acceptable only where it would not harm the character of the building or its setting.
Work covered by the Party Wall etc. Act 1996 needs notice: gov.uk guidance says the building owner must give adjoining owners notice in the way the Act sets down, and the Act provides a route for settling disagreements.
In Camden, noisy building work needs no authorisation between 8am and 6pm from Monday to Friday or between 8am and 1pm on a Saturday, and does need it at any other time, Sundays and bank holidays included. Parking bay suspensions are booked online at least 17 days ahead, and a skip licence, for which only the skip company may apply, needs at least 5 working days.
Sources: Camden Council: basement developments, Camden Council: Hampstead Conservation Area Statement (2002), GOV.UK: Party Wall etc. Act 1996 guidance, Camden Council: noisy building works, Camden Council: parking bay suspensions, Camden Council: skip licence
Questions about renovating a Hampstead house
Does the Article 4 direction cover the back of a Hampstead house?
No; it applies only to the front and the sides that face the street. The roof is different: the 2001 conservation area statement says roof alterations at the rear and side need planning permission as well as those at the front.
Can a Hampstead front garden be paved for parking?
Making or altering a hard surface at the front now needs planning permission, as does any change to a front gate, wall or fence, and the statement says the Council will resist further conversion of front gardens into hardstanding parking.
What does Camden need before a basement is dug?
A Basement Impact Assessment with the planning application, generally checked by an independent technical audit and showing engineering input whatever the size of the basement. In Hampstead, new front basement areas will generally be resisted.
Which planning policies apply to a Hampstead house?
Camden's Local Plan, adopted on 3 July 2017, is the basis for its planning decisions; for Hampstead the council also publishes the conservation area statement and the design guide updated in June 2026. The Local Plan examination is continuing: on 12 October 2026 Camden reported that the Inspector had identified Main Modifications after the May and June hearings, and the consultation on them closes on Monday 23 November 2026.
What does a house refurbishment cost in Hampstead?
A Hampstead house is priced on the survey and the consents it needs: Camden's Article 4 controls on fronts and roofs, listed status, structural work, party wall notices, and any basement proposal. Access on narrow streets and parking suspensions also affect how the job runs. We review these on a feasibility visit, agree a scope and specification, and then send a written quotation.
Sources: Camden Council: Hampstead Conservation Area Design Guide (updated June 2026), Camden Council: Hampstead Conservation Area Statement (2002), Camden Council: basement developments, Camden Council: Camden Local Plan, Camden Council: Local Plan examination news
House refurbishments we have completed near Hampstead
Selected Hampstead Renovations projects in matching period and estate buildings across Prime Central and North-West London:
Rooms and elevations typical of Hampstead
Design, joinery and the build, under one contract in Hampstead
The same team stays with the project from the first visit to handover. Our in-house architects, designers and structural engineers draw and specify the work. Master joiners make the fitted furniture. Building Regulations approval comes from the building control body appointed for the project. Independent surveying is a separate appointment: Hampstead Chartered Surveyors & Building Consultancy, our RICS-regulated sister practice, is a separate firm that a homeowner instructs directly. One JCT contract covers the building work. Electrical and gas work is carried out by appropriately registered engineers. Completed structural work carries a 12-month aftercare/defects period. Cover is £5M public liability, £10M employers' liability and contractors' all risks cover. Main office: 250 Finchley Road, Hampstead, London NW3 6DN. Central London client consultation address: 2 Eaton Gate, Belgravia, London SW1W 9BJ. Telephone 020 7101 3168.
Licence to alter · Independent surveying by our sister practice
What clients have said about the work
I would like to thank Ross and his team for their consistent commitment to quality and their unerring reliability.
We have worked with Ross and his company many times. They are extremely professional and hardworking individuals who can work under any circumstances. There was no variation to the works.
Verified Planning, Estate & Conservation Sources
- Camden Council: Hampstead Conservation Area Statement (2002)
- Camden Council: Hampstead Conservation Area Design Guide (updated June 2026)
- Camden Council: Article 4 directions (heritage and conservation)
- Camden Council: basement developments
- GOV.UK: Party Wall etc. Act 1996 guidance
- Camden Council: noisy building works
- Camden Council: parking bay suspensions
- Camden Council: skip licence
Related pages
Book a feasibility visit
At the visit we look at the rooms and the features you want to keep, and talk through feasibility, likely consents and a first budget framework. The visit is without obligation.
Tell us about the house
A few lines on the house and what you would like to change are enough to start.