Open-plan kitchen, diner and living conversions in Edgware. Trusted, professional, 30+ years' hands-on experience.
GS Renovation creates open-plan spaces in Edgware's 1930s and interwar homes, from reception knock-throughs to full kitchen-diners, broken-plan layouts and Crittall-style glazed dividers. With more than 30 years working across HA8 and neighbouring Hendon, Finchley and Golders Green, we open up these generously proportioned suburban houses while keeping every load properly carried.

The classic interwar Edgware semi has two separate reception rooms divided by a solid spine wall, often with the original chimney breasts on that line. Knocking the two together into a single through room, or pushing further into a kitchen-diner, means removing load-bearing masonry, so the layout you want is really a structural project. We begin with a structural engineer sizing the steel needed to replace the wall.
The new beam is set on padstones at each bearing, with the floor above held on temporary props while we take the wall down in stages. For homeowners who prefer a broken-plan feel, we can retain a section of wall or introduce a Crittall-style glazed screen that keeps light and sightlines open while zoning cooking from living. Everything is finished flush, plastered and level across the new open span.
Opening up the inside of an Edgware house is a building regulations matter, not a planning one, so a straightforward knock-through does not need permission from Barnet's planning department. The beam, its bearings and the propping are inspected by building control, who issue the completion certificate. If your home falls in a conservation area or is listed, only exterior alterations would need separate consent, and we will flag that at survey.
Where the wall being removed meets the party wall shared with the neighbouring semi, or the new beam bears into that shared masonry, the Party Wall Act applies and you serve the required notice before work starts. We coordinate the engineer, the party wall paperwork, the steelwork and the finishing trades as one team, keeping dust down and the rest of your home usable throughout the conversion.
For open-plan conversions in Edgware, GS Renovation delivers the whole thing under one roof: an engineer-sized beam on padstones served on the neighbouring semi, building control managed with Barnet, and clean, staged working in your home. Thirty-plus years in HA8 means these interwar knock-throughs are exactly the work we do best.
Punctual, worked hard, and did exactly what he was asked and what he said he would do. Overall, a very high quality job. Will use again.
Very friendly and I am very pleased with the work he has done, also very clean worker and enthusiastic about his work. Can not fault this company!!!!…
Built a new extension at rear of property. Laid foundations, drainage, raised floor, new roof and completed all fixtures and interior decoration…
FAQ
Because scope, not skill, is what differs. An open-plan conversion quotation that omits the engineer, the Barnet Council fee or the making good will always undercut one that includes them, which is why Edgware homeowners see such a spread. We list each element for the HA8 address so nothing hides. GS Renovation would rather explain a difference than quietly match a lower Barnet figure. Ask every Barnet builder quoting for your HA8 home to supply the same breakdown. As a rough guide, open-plan conversion in London typically costs from roughly £3,000 to £8,000 or more, including the steel beam and finishing (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.
Yes, in the standard interwar layout the wall between front and rear reception rooms can be removed with a beam, subject to an engineer's calculations. Valuation Office council tax stock data records Edgware Central as 71.8 per cent interwar, the oldest of the three Edgware areas, with Edgware Park at 47.7 per cent. That wall can carry first floor joists, so a beam and padstone design is needed rather than a simple lintel.
Yes, where the old suspended timber floor and the rear addition sit at different levels, a new insulated slab is the way to get one level surface. A 63 point survey of British Geological Survey mapping across Edgware found no superficial deposits at all but two or three points, and no made ground at 1:50,000 scale, with alluvium mapped only in the brook corridors. So the dig is into London Clay itself, which is heavy going but predictable for the design.
No, not in the same way, because a flat's structure, lease and means of escape all constrain it. The 2021 census records 27.8 per cent of households across the three Edgware areas in purpose built blocks of flats or tenements. A separate census table puts 58.8 per cent of those households in owner occupation and 27.1 per cent in private renting. A leaseholder needs the freeholder's written consent, and the protected entrance hall serving the escape route cannot simply be absorbed into an open plan room.
Not without checking flood risk first, because Barnet's Local Plan records Edgware town centre as in effect surrounded by floodplains. Paragraph 4.18.10 names the Edgwarebury Brook, Deans Brook and Edgware Brook flowing into the Silk Stream, with confluences south of Brook Avenue and south of Deansbrook Road. Dropping a floor level near those corridors lowers the finished floor relative to flood level, which can make insurance harder and is a reason to build up rather than down.
No, not without planning permission in Barnet, whatever the internal layout. An Article 4 direction covering small houses in multiple occupation took effect on 29 May 2016 and withdraws Class L of Part 3 of the General Permitted Development Order across the borough. So a change of use from a C3 dwelling to a C4 small HMO needs a planning application. None of the ten conservation area Article 4 directions in Barnet is in Edgware, but this one is borough wide.
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 Edgware. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Edgware and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Edgware. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.