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House Extensions Tower Hamlets

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

GS Renovation designs and builds house extensions across Tower Hamlets, working with the Victorian terraces of Bow and Bethnal Green as well as the warehouse-conversion and new-build stock around Wapping and Canary Wharf. With 30+ years across E1, E2, E3 and E14, we take extensions from foundations and steel to full fit-out.

Steel beams laid out and installed across a rear elevation on a GS Renovation structural job
Two beams on the ground and one already seated. Cavity blockwork and the damp proof course are visible below.

Rear and side-return extensions in Tower Hamlets

The classic Tower Hamlets extension opens up the rear of a Victorian terrace in Bow or Bethnal Green, filling in the side return and pushing back into the garden to create a bright kitchen-diner. We handle the groundworks and foundations first, checking for the drains and shallow footings common in E3 terraces, then set the steel beams that carry the existing rear wall once the old back addition comes down.

On tighter plots and in conservation areas near Victoria Park we design to suit the space you have, matching brick and detailing to the original house. Every extension is built to current building regulations for structure, insulation, drainage and ventilation, and we sequence the trades so the shell, roof, glazing and internal finishes follow on without gaps or delays.

Planning and permitted development in E1 to E14

Whether your extension is permitted development or needs a full planning application depends entirely on the property. A single-storey rear extension on a Bow terrace may fall under permitted development rights, while flats, conservation areas and anything larger usually need permission from Tower Hamlets Council. Leasehold apartments in Wapping and Canary Wharf conversions almost always require freeholder consent as well, since structural change to a flat is tightly limited.

We assess your title, your postcode and the council's rules before committing to a route, and we are honest when planning permission is the sensible path. Alongside planning we coordinate around the party wall award where the extension affects a shared boundary, and we deal with building control separately for the structural and regulation sign-off. One team keeps planning, party wall and building regs moving together.

  • Steel goalpost frames where the rear wall opens up
  • Roof works and structural alterations at roof level
  • Single and double storey extensions
  • Wrap-around extensions and infills
  • Insulation, airtightness and thermal detailing to regulations
Service areaTower Hamlets · E1, E2, E3 and E14
Local authorityTower Hamlets Council
Part ofEast London (Inner London)
Typical homesVictorian terraces, warehouse conversions and riverside apartments
Also covered nearbyHackney, Newham and Greenwich

Why Choose GS Renovation in Tower Hamlets

Tower Hamlets homeowners choose GS Renovation because we manage the whole extension, the foundations, steel, roof, glazing and fit-out, under one roof. We are straight about whether you need planning permission or permitted development, we handle party wall and building control, and we bring 30+ years of building across E1, E2, E3 and E14 to every project.

  • A dedicated project manager from first survey to handover
  • Neighbours given notice before the noisy stages
  • Honest updates if a date or a detail has to move
  • Building control inspected at foundation, damp course and steel stages
  • Weathertight shell reached before the fit-out begins
  • Permitted development checked before you pay for a planning application
30+ YearsFounder's experience
Fully Insured5 year guarantee
4.9 / 531 MyBuilder reviews
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

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

★★★★★
He was very very good. He just got on with the job and we was beey pleased with the result. He Also cleaned everything away when he finished. Will…
desiree14189Harlow · via MyBuilder
★★★★★
My husband and I are extremely pleased with the work. The standard of the work is outstanding and Saiid has a great eye for detail and will not leave…
jessbeanWoodford Green · via MyBuilder
★★★★★
The kitchen has been fitted to the high standard. Saaid was polite, professional, tidy, he pays attention to a little details that make huge…
khalid75711Barnet · via MyBuilder
Read all 31 reviews

FAQ

Frequently Asked Questions about House Extensions Tower Hamlets

Which parts of a house extensions project in Tower Hamlets cost the most?

Usually the structural work and the making good, in that order. Steel, propping and the engineer's design account for the largest share of a house extensions job at an E1 address, and reinstating a converted warehouse and riverside interior afterwards accounts for more than most people expect. The Tower Hamlets Council fee is small by comparison. GS Renovation shows all three separately on the Tower Hamlets quotation. Ring 07472 424 226 and we will explain the balance at an E1 property. 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.

Do you work to a fixed programme for house extensions in Tower Hamlets?

Always. Running house extensions without a programme is how a Tower Hamlets project drifts, so the sequence for your E1 home is agreed before anyone arrives. GS Renovation keeps one team on the Tower Hamlets site rather than splitting it across jobs, which is the practical reason the dates hold. Variations are re-programmed and agreed in writing with Tower Hamlets Council notified where needed. Ring 07472 424 226 and we will explain how an E1 programme is held in practice.

Do you produce the structural calculations for house extensions in Tower Hamlets?

That is the engineer's work, not ours. We are a contractor: for a house extensions job at a Tower Hamlets address GS Renovation arranges the engineer, the temporary works and the Tower Hamlets Council approval, then constructs exactly to the issued design. You receive the calculations for the E1 property as part of the record. It is the document a buyer's solicitor will want. Ask on 07472 424 226 about Tower Hamlets projects. That separation is what protects a Tower Hamlets homeowner legally.

Will an extension in Tower Hamlets need a CIL payment?

It can. The Community Infrastructure Levy applies above 100 square metres of new floorspace, though a residential extension to your own home usually qualifies for relief if it is claimed before work starts. Missing that claim is expensive, so we flag it early on Tower Hamlets projects.

Does Tower Hamlets's converted warehouse and riverside stock change how you price house extensions?

It changes the making good more than the structural element. Warehouse conversions and new-build riverside apartments rarely have square openings or regular floors, so house extensions at an E1 property takes longer in plaster and joinery than in a modern house. GS Renovation shows that as a separate line on the Tower Hamlets quotation. The survey that establishes it is free. GS Renovation will explain on 07472 424 226 how house extensions are actually priced at an E1 address in Tower Hamlets itself.

Will my rear extension in Bethnal Green need planning permission?

It depends on the property. A modest single-storey rear extension on a Bethnal Green house may be permitted development, but conservation areas, flats and larger or double-storey builds usually need a planning application to Tower Hamlets Council. Leasehold flats in E2 also need freeholder consent. We check your specific address and rights before starting, and manage the application and building control if permission is required.

Do you travel to Tower Hamlets for house extensions?

Yes, and at no extra cost within Tower Hamlets. GS Renovation covers Tower Hamlets and the E1 area for house extensions and much of the wider East London besides. Distance only becomes a factor well beyond Hackney, and we will say plainly if a property is too far. Email info@gsrenovationltd.co.uk with the postcode and we will book a free survey. Nothing is owed for the E1 visit either way. Small jobs and full projects are treated on the same basis.

Every Service, One Team

More GS Renovation Services in Tower Hamlets

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

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Free, no-obligation quote for house extensions in Tower Hamlets. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.

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