House Extensions in Kingston upon Thames, KT1
Rear, side-return, wraparound and double-storey extensions for houses in Kingston upon Thames, 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 Kingston upon Thames.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Kingston upon Thames 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 Royal Borough of Kingston upon Thames 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
- Kingston upon Thames, KT1 · KT2
- Council
- Royal Borough of Kingston upon Thames
- Housing
- Large detached houses on the Coombe estates, Edwardian and 1930s family houses, Victorian terraces near the town centre
- Transport
- Kingston and Norbiton (rail)
- 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
Kingston upon Thames: the houses and the planning rules.
Kingston combines a historic market town with some of the largest private houses in south-west London on the Coombe estates, where detached houses sit in big gardens on private roads. Between them are Edwardian and inter-war family houses and Victorian terraces closer to the river.
We designed, supplied and fitted a kitchen on Coombe Lane North with high-gloss glass fronts, pine veneer, toughened glass worktops and Gaggenau appliances, a large room in a detached house where the kitchen had to match the scale of the space.
The Coombe Hill, Kingston Old Town and riverside conservation areas cover parts of the borough.
Royal Borough of Kingston
Kingston decides applications. The Coombe conservation areas and private estates have design guidance and covenants that affect extensions and external changes.
Detached houses
Larger plots allow double-storey extensions and basements that would not be possible in inner London, though most need a planning application.
Flood zones
Riverside streets fall within flood zones, which affects basements and ground-floor levels.
Approvals for house extensions in Kingston upon Thames.
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.
Kingston decides applications. The Coombe conservation areas and private estates have design guidance and covenants that affect extensions and external changes.
What house extensions in Kingston upon Thames 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 Kingston upon Thames: your questions.
Do I need planning permission for an extension in Kingston upon Thames?
Not always. Permitted development covers many single-storey rear extensions on houses, but the Royal Borough of Kingston upon Thames 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 Kingston upon Thames do you cover?
All of Kingston upon Thames and KT1 · KT2, including Coombe Lane West, Coombe Hill Road, Kingston Hill, Warren Road, Richmond Road, Portsmouth Road, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Our work near Kingston upon Thames.
Other services in Kingston upon Thames.

House Refurbishment in Kingston upon Thames
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Flat Refurbishment in Kingston upon Thames
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Structural Alterations in Kingston upon Thames
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Loft Conversions in Kingston upon Thames
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Basement Conversions in Kingston upon Thames
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Kitchen Renovation in Kingston upon Thames
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Bathroom Renovation in Kingston upon Thames
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Bespoke Joinery & Fitted Furniture in Kingston upon Thames
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Architectural & Interior Design in Kingston upon Thames
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Planning Permission & Building Regulations in Kingston upon Thames
Read moreHouse Extensions across London.
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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.

