House Extensions in Hampstead Garden Suburb, NW11
Rear, side-return, wraparound and double-storey extensions for houses in Hampstead Garden Suburb, designed, approved and built by one team.
Covered under one contract
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
House Extensions in Hampstead Garden Suburb.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Hampstead Garden Suburb generally lend themselves to it: a side return to fill, a rear garden to build into, or on larger plots room for a full-width or double-storey addition.
We design the extension around how you will use it, not around the maximum footprint the rules allow. That means thinking about light, the level change to the garden, where the kitchen sits, how the old and new parts of the house meet and what happens to the rooms you already have. The structural engineering, party wall matters and building control inspections are all handled by us.
Approvals are checked on the first visit. Many single-storey rear extensions fall within permitted development, but the London Borough of Barnet applies tighter rules in conservation areas and to flats and listed buildings, so we confirm the route before any drawings are produced and then manage the application if one is needed.
- Area
- Hampstead Garden Suburb, NW11
- Council
- London Borough of Barnet
- Housing
- Arts and Crafts cottages and houses, larger Lutyens-influenced houses around Central Square, 1920s and 1930s detached houses on wide plots
- Transport
- Golders Green, East Finchley
- Rear or side return, on site
- 10 to 16 weeks
- Design and approvals
- 8 to 14 weeks before start
- Glazing lead time
- 6 to 10 weeks, ordered early
- Consent
- Permitted development or householder application
- Party wall
- Notices served by us
Hampstead Garden Suburb: the houses and the planning rules.
Hampstead Garden Suburb is a planned Arts and Crafts suburb begun in 1907, with cottages and houses by Unwin, Parker, Lutyens and their contemporaries set on tree-lined roads around Central Square. The whole Suburb is protected twice over, by Barnet as a conservation area and by the Hampstead Garden Suburb Trust, which must approve any external change.
Owners here typically want to extend and modernise without losing what makes the houses special. That means extensions designed in the Suburb's own language, roofs and windows that follow the Trust's guidance, and interiors that bring services and kitchens up to date while keeping the original joinery and proportions.
The whole Suburb is a conservation area, with Article 4 directions on every street and the Hampstead Garden Suburb Trust as a second consenting body.
London Borough of Barnet
Barnet decides planning applications, with Article 4 directions across the Suburb removing permitted development rights for all external work.
The Trust
The Hampstead Garden Suburb Trust must also approve external alterations under the scheme of management, with its own design guidance and application.
Materials
Handmade tiles, brick, timber windows and lime render are expected; the Trust publishes detailed guidance for each.
Approvals for house extensions in Hampstead Garden Suburb.
Many single-storey rear extensions are permitted development within the 3 or 4 metre limits, or 6 and 8 metres under prior approval. Conservation areas, flats, listed buildings and larger schemes need a householder application, and every extension needs building regulations approval.
Barnet decides planning applications, with Article 4 directions across the Suburb removing permitted development rights for all external work.
What house extensions in Hampstead Garden Suburb includes.
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
House Extensions in Hampstead Garden Suburb: your questions.
Do I need planning permission for an extension in Hampstead Garden Suburb?
Not always. Permitted development covers many single-storey rear extensions on houses, but the London Borough of Barnet removes those rights in some conservation areas, and flats and listed buildings always need an application. We confirm the route at the site visit.
How long does an extension take to build?
Ten to sixteen weeks on site for a single-storey extension once approvals are in place, plus the design and approval period beforehand. Glazing has the longest lead time, so we order it early.
Which parts of Hampstead Garden Suburb do you cover?
All of Hampstead Garden Suburb and NW11, including Meadway, Hampstead Way, Wildwood Road, Winnington Road, Central Square, Turner Drive, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
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Architectural & Interior Design in Hampstead Garden Suburb
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Planning Permission & Building Regulations in Hampstead Garden Suburb
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All of North-West LondonTalk to us about an extension in Hampstead Garden Suburb.
We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.
