House Extensions in Ruislip, HA4
Rear, side-return, wraparound and double-storey extensions for houses in Ruislip, 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 Ruislip.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Ruislip 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 Hillingdon 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
- Ruislip, HA4
- Council
- London Borough of Hillingdon
- Housing
- 1930s Metroland semis and detached houses, bungalows, timber-framed cottages in the old village
- Transport
- Ruislip, Ruislip Manor, Eastcote (Metropolitan, Piccadilly)
- 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
Ruislip: the houses and the planning rules.
Ruislip grew along the Metropolitan line in the 1930s and is still defined by that decade: wide roads of semi-detached and detached houses with hipped roofs, bay windows and long gardens, around a medieval village core with timber-framed cottages and the Manor Farm site. Ruislip Woods and Lido lie to the north.
We fitted out the Masala Chowk restaurant in Ruislip from strip-out to opening, and the surrounding housing is well suited to the rear extensions, hip-to-gable lofts and full refurbishments we carry out across Metroland.
The Ruislip Village conservation area covers the old village; most other streets are unrestricted.
London Borough of Hillingdon
Hillingdon decides applications. Outside the village conservation area, permitted development covers most rear extensions and lofts.
Hipped roofs
Hip-to-gable conversions are the usual way to make a 1930s loft usable, generally within permitted development limits.
Commercial units
Restaurant and shop fit-outs need Hillingdon's consent for shopfront and signage changes and, where cooking is introduced, for extraction.
Approvals for house extensions in Ruislip.
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.
Hillingdon decides applications. Outside the village conservation area, permitted development covers most rear extensions and lofts.
What house extensions in Ruislip 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 Ruislip: your questions.
Do I need planning permission for an extension in Ruislip?
Not always. Permitted development covers many single-storey rear extensions on houses, but the London Borough of Hillingdon 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 Ruislip do you cover?
All of Ruislip and HA4, including High Street, Kingsend, Eastcote Road, West End Road, Ickenham Road, Bury Street, 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 Ruislip.
Other services in Ruislip.

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Flat Refurbishment in Ruislip
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Structural Alterations in Ruislip
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Loft Conversions in Ruislip
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Basement Conversions in Ruislip
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Kitchen Renovation in Ruislip
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Bathroom Renovation in Ruislip
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Bespoke Joinery & Fitted Furniture in Ruislip
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Architectural & Interior Design in Ruislip
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Planning Permission & Building Regulations in Ruislip
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.

