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House Extensions Ruislip

Single and double storey extensions in Ruislip. Trusted, professional, 30+ years' hands-on experience.

GS Renovation designs and builds extensions across Ruislip, making the most of the generous plots that came with the area's 1930s and interwar houses. With over 30 years of building experience in HA4 and the wider Hillingdon borough, we handle everything from foundations and steel to the final fit-out under one accountable team.

House Extensions in Ruislip, London by GS Renovation
House Extensions by GS Renovation in Ruislip.

Rear and side-return extensions in Ruislip

Many Ruislip semis sit on deep, wide plots, which makes them well suited to single and double storey rear extensions and to filling in the side passage between paired houses. A rear extension can turn a cramped 1930s kitchen into an open-plan kitchen-diner opening onto the garden, while a wrap-around combines the rear and the side return for a much larger ground floor. We set out the groundworks, pour the foundations and build up in brick to match the interwar character.

Where the extension removes an external wall to connect old and new, we install a steel beam sized by a structural engineer and bearing onto padstones, then take the new roof, whether flat, pitched or a lantern rooflight, up to a weathertight finish. On a paired Ruislip semi the flank or rear wall is often a party wall, so the Party Wall Act applies and we serve the notices your neighbour is entitled to receive before we break ground.

Planning and permitted development in Ruislip

Not every Ruislip extension needs a planning application. Many single storey rear extensions fall under permitted development, which lets you build within set size and height limits without full planning permission, though the exact allowance depends on your plot and whether earlier owners have already extended. Larger schemes, most double storey work, and anything affecting the front or a prominent side elevation usually need a full planning application to Hillingdon Council, and permitted development rights can be restricted on certain roads.

We assess your specific house early, tell you honestly whether it is permitted development or a planning application, and handle the route with the council either way. Whichever path applies, the structural and building work itself is governed by building regulations, so foundations, steel, drainage and insulation are all inspected by building control. From first drawings to the full internal fit-out, plastering, electrics, plumbing and decoration, one team sees the extension through.

  • Planning permission and permitted development
  • Foundations, groundworks and steel frames
  • Full fit-out, finishing and making good
  • Architectural drawings and structural coordination
  • Single and double storey extensions
Service areaRuislip · HA4
Local authorityHillingdon Council
Part ofWest London (Outer London)
Typical homes1930s semi-detached and interwar suburban houses on generous plots
Also covered nearbyUxbridge, Hayes and Hillingdon

Trusted House Extensions in Ruislip

Ruislip homeowners choose GS Renovation because we make the most of the area's larger interwar plots without cutting corners. We tell you upfront whether your extension is permitted development or needs a planning application to Hillingdon Council, manage party wall notices on paired semis, and deliver foundations, steel, roof and fit-out under one 30+ year team.

  • Free, no-obligation quotations
  • Over 30 years of hands-on experience
  • Dedicated project management
  • Fully insured and guaranteed work
  • Building control and planning support
  • Clean, tidy and reliable tradespeople
30+ YearsExperience
Fully Insured& Guaranteed
500+ ProjectsCompleted
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

★★★★★ 4.9 average from 31 verified reviews on MyBuilder

★★★★★
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great attention to detail. I've already recommended him to others.
OscarCrofton Park, London · via MyBuilder
★★★★★
Splendid job on our new kitchen refurb, including new flooring, moving the services, installing RSJ and preparing space for new back doors… George was always friendly, communicative and has an excellent attention to detail, ensuring everything is finished to a high standard.
KathWood Green, London · via MyBuilder
★★★★★
Giorgio is an excellent and intelligent workman, and with very reasonable prices!… He paid a lot of attention to detail that is not common at all, and the final result was immaculate. Highly recommended!
Adil KhanWoolwich, London · via MyBuilder
Read all 31 reviews on MyBuilder

FAQ

Frequently Asked Questions about House Extensions Ruislip

How much does house extensions cost in Ruislip?

Pricing house extensions in Ruislip comes down to the size of the job, the specification you choose and the condition of the property. Rather than guess, we survey and give you a fixed, itemised quote you can rely on. Call 07472 424 226. As a rough guide, house extensions in London typically starts from roughly £40,000 for a single-storey rear extension and rises with size and specification (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.

How long does house extensions take in Ruislip?

A straightforward Ruislip project can be done in a couple of weeks, while a larger house extensions with structural work runs longer. We set out a realistic, stage-by-stage programme before we begin so there are no surprises.

Why choose GS Renovation for house extensions in Ruislip?

Ruislip homeowners choose GS Renovation for reliability and quality. We are fully insured, building control compliant where needed, and bring over 30 years of hands-on experience to every house extensions project, with a single point of contact throughout.

Do I need planning permission for an extension in Ruislip?

Many single-storey rear extensions in Ruislip fall under permitted development, but side returns, double-storey extensions and work in conservation areas usually need full planning permission. We assess your property and manage both the planning application and building control.

Do you work on 1930s and interwar homes in Ruislip?

Yes. A large share of Ruislip's homes are 1930s and interwar properties, and we renovate them regularly. We plan each house extensions around their particular characteristics, such as cavity walls, regular original layouts and the generous plots that suit extending, so the result suits the building and meets building control.

Does my Ruislip extension need planning permission or is it permitted development?

It depends on your house. Many single storey rear extensions in Ruislip fall under permitted development within set size and height limits, so no full planning application is needed. Larger or double storey schemes, and work affecting the front elevation, usually need planning permission from Hillingdon Council. We assess your specific plot first and handle whichever route applies, alongside the building regulations sign-off the structure requires.

Do you cover all of Ruislip?

We cover the whole of Ruislip and the HA4 area and the surrounding West London. If you are nearby and not sure, just call 07472 424 226 and we will tell you straight away.

Every Service, One Team

More GS Renovation Services in Ruislip

The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Ruislip. Explore what else we do locally:

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Ready to Start Your Ruislip Project?

Contact GS Renovation today for a free, no-obligation quote for house extensions in Ruislip.

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Call 07472 424 226