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House Extensions Bloomsbury

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

Extending a home in Bloomsbury means working within one of London's most protected settings, where Georgian and Regency townhouses in WC1 sit inside Camden's conservation areas. GS Renovation has built extensions across North London for over 30 years, handling foundations, steelwork, roofs and fit-out while navigating the planning and party wall demands these period properties bring.

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

Rear and side-return extensions in Bloomsbury

The most common extension in Bloomsbury opens up the rear of a townhouse at lower-ground or garden level, sometimes infilling a narrow side return to widen a cramped kitchen. Plots here are generous by London standards in the garden squares but often tight behind terraces. We dig and lay foundations to suit the ground and neighbouring structures, install the steel beams the opening needs, and tie the new roof and walls into the existing period fabric.

Because so much of WC1 is listed or within a conservation area, an extension here is far more likely to need a full planning application to Camden Council than to fall under permitted development, and a listed property will need listed building consent as well. We advise honestly on which route applies before you commit, and where neighbours are affected we serve party wall notices, since excavation near a shared wall almost always triggers the Act.

Adding space to Bloomsbury period homes

Where the ground floor cannot grow, Bloomsbury owners often look upward, adding a storey or converting the roof of a townhouse into extra bedrooms. In a conservation area the roof line matters enormously, so any dormer or mansard is designed to sit sympathetically within the terrace and to satisfy Camden's planners. We handle the structural upgrades floors and steels need to carry the new load, along with insulation, escape and fire requirements under building regulations.

For owners of leasehold flats in Bloomsbury's mansion blocks, structural extension is usually limited, but reconfiguring space and improving the layout is often possible with the freeholder's licence to alter and the managing agent's agreement. Whichever type of property you own, we manage the whole extension as one project, from the first drawings and applications through groundworks, superstructure and roofing to a complete internal fit-out, so you deal with a single team throughout.

  • Full fit-out, finishing and making good
  • Architectural drawings and structural coordination
  • Single and double storey extensions
  • Side-return and rear extensions
  • Wrap-around extensions and infills
Service areaBloomsbury · WC1
Local authorityCamden Council
Part ofNorth London (Inner London)
Typical homesGeorgian and Regency townhouses, many listed or within conservation areas
Also covered nearbyCamden Town, Hampstead, Kentish Town, Highgate and Camden

Why Choose GS Renovation in Bloomsbury

Homeowners across WC1 choose GS Renovation because extending a Bloomsbury period home demands both building skill and a steady hand with Camden's planners and party wall matters. With 30+ years behind us, we join foundations, steel, roof and fit-out into one accountable project, keep the work tidy in an occupied home, and deliver space that respects the building's character.

  • 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 Bloomsbury

How much does house extensions cost in Bloomsbury?

Pricing house extensions in Bloomsbury 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 Bloomsbury?

We will give you an honest timescale for house extensions in Bloomsbury after surveying your home. Most projects run on a clear weekly programme, and we tell you up front about any lead times on materials or approvals.

Why choose GS Renovation for house extensions in Bloomsbury?

With more than three decades of hands-on trade experience behind us, GS Renovation is a trusted choice for house extensions in Bloomsbury. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.

Do I need planning permission for an extension in Bloomsbury?

Many single-storey rear extensions in Bloomsbury 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 period, Georgian and listed homes in Bloomsbury?

Yes. A large share of Bloomsbury's homes are period, Georgian and listed properties, and we renovate them regularly. We plan each house extensions around their particular characteristics, such as conservation and listed-building rules, solid walls and original period features, so the result suits the building and meets building control.

Will my Bloomsbury extension need planning permission or is it permitted development?

In much of Bloomsbury the answer leans towards planning permission, because the area's conservation status and the number of listed buildings restrict permitted development rights that apply elsewhere. A listed home also needs listed building consent. We assess your specific property against Camden's rules early, so you know the likely route before spending on detailed design, and we handle the application either way.

Do you cover all of Bloomsbury?

Absolutely. Our team works right across Bloomsbury and the WC1 area and neighbouring parts of North London. Get in touch on 07472 424 226 to check coverage for your address.

Every Service, One Team

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

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Ready to Start Your Bloomsbury Project?

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

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