House Extensions in Highgate, N6
Rear, side-return, wraparound and double-storey extensions for houses in Highgate, 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 Highgate.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Highgate 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 Camden and London Borough of Haringey 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
- Highgate, N6
- Council
- London Borough of Camden and London Borough of Haringey
- Housing
- Georgian houses in the village, Victorian villas on the slopes, 1930s and post-war houses on the Holly Lodge and Highgate estates
- Transport
- Highgate, Archway
- 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
Highgate: the houses and the planning rules.
Highgate village sits on the hill above the Heath, a cluster of Georgian houses around the High Street and Pond Square, with large Victorian villas on the slopes towards the cemetery and Hampstead Lane, and 1930s and modernist houses on the estates around Highgate Wood. The conservation area is one of the oldest in London.
The houses are individual and so are the projects: restoring Georgian interiors, extending Victorian villas across steep gardens, and modernising mid-century houses while respecting their architecture. Two boroughs meet here, and we handle whichever one applies.
The Highgate Conservation Area covers the village and surrounding streets, and many of the older houses are listed.
Camden and Haringey
The borough boundary crosses the village; Camden covers the west side and Haringey the east, each with its own conservation area guidance and application process.
Listed houses
Much of the High Street, the Grove and Pond Square is listed, so internal work needs listed building consent.
Slopes and trees
Steep sites and protected trees affect extensions and basements; a topographical and tree survey is the starting point.
Approvals for house extensions in Highgate.
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.
The borough boundary crosses the village; Camden covers the west side and Haringey the east, each with its own conservation area guidance and application process.
What house extensions in Highgate 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 Highgate: your questions.
Do I need planning permission for an extension in Highgate?
Not always. Permitted development covers many single-storey rear extensions on houses, but the London Borough of Camden and London Borough of Haringey 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 Highgate do you cover?
All of Highgate and N6, including The Grove, Highgate High Street, Southwood Lane, Hampstead Lane, Bisham Gardens, Fitzroy Park, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Other services in Highgate.
House Refurbishment in Highgate
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Flat Refurbishment in Highgate
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Structural Alterations in Highgate
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Loft Conversions in Highgate
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Basement Conversions in Highgate
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Kitchen Renovation in Highgate
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Bathroom Renovation in Highgate
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Bespoke Joinery & Fitted Furniture in Highgate
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Architectural & Interior Design in Highgate
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Planning Permission & Building Regulations in Highgate
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We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.