Single and double storey extensions in Hackney. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Hackney, working with both the borough's warehouse conversions and its period terraces near Broadway Market and London Fields. With more than 30 years in E2, E8, E9 and N16, we handle foundations, steelwork, roofing and fit-out, and guide you through Hackney Council's planning rules from the first drawing.

The classic Hackney extension adds space to a Victorian terrace, either extending the rear or filling the side return to widen a narrow kitchen. We dig and lay the foundations, allowing for any trees or shallow drains common on these older plots, then form the walls and fit steel beams where the back of the house opens up. A well-detailed flat or pitched roof, with rooflights, keeps the new space bright and usable.
Whether your project is permitted development or needs a full planning application depends on the property. Many single-storey rear extensions in Hackney fall under permitted development, but flats, homes in conservation areas and larger double-storey schemes usually need permission from Hackney Council. We assess your specific address, prepare the application where required, and handle any party wall notices with neighbours before building work begins on your E8 or N16 home.
Extending a warehouse conversion or new-build apartment is a different matter from extending a house. Structural change is limited, and any alteration to the building's fabric usually needs the freeholder's consent and coordination with the managing agent. Rather than a rear extension, projects here often mean reconfiguring the existing envelope, adding a mezzanine where the ceiling height allows, or enclosing a balcony, all within the building-management rules set out in your lease.
Where a genuine extension is possible, such as on the ground floor of a converted building with garden rights, we work through both Hackney Council's planning requirements and the terms of your lease. We prepare the structural and drainage details, manage sound insulation between units, and sequence the work to minimise disruption to neighbours in your block across Dalston, Hoxton or Shoreditch while keeping the managing agent informed throughout.
Homeowners across Hackney choose GS Renovation because we understand both sides of the borough, the freehold terraces and the leasehold conversions. We tell you honestly whether your extension is permitted development or a planning matter, coordinate party walls and any licence to alter, and deliver the groundwork, steel and finish as one project backed by 30+ years.
It's the second time I have hired George and he has been absolutely professional and the work he did resembles perfectly what I had in mind. Being an…
We loved working with George and Ibrahim and would highly recommend them. They have done splendid job on our new kitchen refurb which including new…
I am very happy to recommend George after he completed the work on my 2 bathrooms. He worked very hard to make sure everything was completed and even…
FAQ
It covers the whole job through to sign-off. The document lists the structural work, the trades that follow, the Hackney Council inspections and the making good at the E2 property, with the engineer's fee shown where house extensions need a design. Site protection and the daily clear-up are included. GS Renovation issues it in writing so a Hackney homeowner has something to hold us to. Ring 07472 424 226 for a sample Hackney layout before the E2 survey. 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.
Allow for the structural stage, the following trades and the making good as three separate blocks. On a house extensions project at an E2 address the first is usually shorter than Hackney homeowners expect and the last longer, particularly in converted warehouse and riverside housing. GS Renovation gives you the week by week programme with the quotation. The Hackney Council inspections are marked on it in advance. Email info@gsrenovationltd.co.uk and we will send a sample Hackney programme before the E2 survey.
No, and no contractor should. GS Renovation appoints and coordinates a structural engineer where house extensions at your E2 property requires a design, then builds to their specification and has it inspected by Hackney Council. The calculations are the engineer's professional responsibility. Any builder in Hackney claiming to produce them in-house is worth questioning closely. Ring 07472 424 226 and we will explain how a Hackney appointment works. The calculations belong to you and to the Hackney record.
Always, regardless of the planning route. Foundations, structure, insulation, drainage and ventilation are all inspected. GS Renovation submits the application to Hackney Council and books the inspections through to the completion certificate on your Hackney project.
It lengthens the preparation and the finishing. A house extensions job at an E2 address of that age begins with investigation and ends with reinstating plaster, floors and joinery to match what is already in the Hackney house. GS Renovation itemises both. Hackney Council inspects the structural stages in between, exactly as it would in Hackney generally. Email info@gsrenovationltd.co.uk and we will explain what house extensions adds in reinstatement at an E2 address of that age.
It depends on your property. Many single-storey rear extensions on Hackney houses are permitted development, but flats and conversions have no such rights, and homes in the borough's conservation areas usually need consent. We check your exact address and the council's records, then either confirm permitted development or prepare and submit the planning application to Hackney Council for you.
Yes, and it shows in the quotation rather than in the marketing. Working on recent developments and converted commercial buildings turned over to flats around E2 week after week is what lets GS Renovation price house extensions from experience instead of caution. Being nearby also means returning quickly for aftercare on a Hackney job. Ask for addresses of finished work in Hackney and go and look. Ring 07472 424 226 and we will arrange that. Finished E2 work nearby is usually available to view.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Hackney. Explore what else we do locally:
Same Service, Nearby Areas
We carry out house extensions across Hackney and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for house extensions in Hackney. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.