Open-plan kitchen, diner and living conversions in Streatham. Trusted, professional, 30+ years' hands-on experience.
GS Renovation creates open-plan spaces in Streatham's Victorian and Edwardian terraces, opening up the two receptions, forming kitchen-diners across the rear closet wing and adding broken-plan touches with Crittall dividers. With more than 30 years in SW16, we handle the structure behind the look so the space is safe, signed off and built to last.

The classic Streatham conversion is the knock-through between the front bay reception and the middle room, turning two dark period rooms into one bright, connected living space. Because the wall between them is usually load-bearing, this is not a cosmetic job: it needs a structural engineer to size a steel beam, padstones at each end and careful propping while the wall comes down in stages. Get the structure right and the room feels effortless.
At the back, homeowners often knock the kitchen through into the closet wing to make a proper kitchen-diner, or add a broken-plan feel with a Crittall glazed screen that keeps light flowing while zoning cooking from dining. Crittall dividers are usually non-structural, but the openings around them frequently are, so we treat each element on its merits and design support wherever the load demands it.
Opening up your home internally is a Building Regulations matter, not a planning one, so Lambeth building control signs off the structural steelwork rather than the planning office. Planning only enters the picture for external alterations in a conservation area or on a listed building. We register the work, book the inspections and have the inspector check beam bearings and propping before anything is boarded over, then hand you the completion certificate.
Where the knock-through runs up to the party wall, or a beam needs to bear into the masonry shared with the neighbouring terrace, the Party Wall Act applies and you serve notice on the adjoining owner before starting. Streatham's terraces sit tight against each other, so this is common on rear kitchen-diner projects in particular. We manage the notices, the engineering and the building work so the whole conversion runs as one coordinated job.
For open-plan conversions in Streatham, GS Renovation gives you one team accountable for the whole project: engineer-designed steelwork, Lambeth building control sign-off and clean, careful building in your occupied home. We prop and sequence demolition safely, protect the rest of the house from dust, and bring 30+ years of SW16 experience to knock-throughs, kitchen-diners and Crittall dividers alike.
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…
Really happy with the quality of remedial works carried out by George in putting other previous tradesman work right. He was very helpful, honest and…
George is a very hard working builder, and has done a fantastic job on replacing my Bathroom. His attention to detail was great and I wouldn't…
FAQ
Not by much, and not because of the postcode. What raises an open-plan conversion figure here is the housing rather than the location: solid-wall Victorian terraces with original chimney breasts and suspended timber floors take more making good than a modern estate. Access and parking around SW16 affect the labour line too. GS Renovation prices the property in front of it rather than applying a Streatham or South London multiplier. Ring 07472 424 226 and GS Renovation will explain what actually moves the figure at SW16. 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.
Fewer at once than you might expect, by design. Stacking trades into an SW16 property makes an open-plan conversion job feel busy while achieving very little, so GS Renovation sequences them and keeps the Streatham site workable. You always know who is due and when. The programme issued with the Lambeth quotation names each stage and each week. The Streatham programme names who is coming to the SW16 property in each Lambeth week.
Local knowledge changes the quotation more than people realise. What open-plan conversion requires in a Victorian and Edwardian terraced Streatham home is not what it requires on a new estate, and GS Renovation prices the SW16 property from having done it repeatedly across Lambeth. Distance also decides how quickly anyone returns for aftercare. Ring 07472 424 226 and ask which Brixton jobs are running now. Ask any firm quoting at your SW16 home for Lambeth addresses to visit.
It can, and it is worth planning for. One large space in an SW16 property behaves differently to two small ones, so radiator sizing or underfloor heating is reconsidered as part of the Streatham conversion rather than left as it was.
Yes, though the standard it is built to is identical. Open-plan conversion at an SW16 property of that age is sequenced to protect the existing fabric, uses details suited to the original construction, and is confirmed by an engineer before design. GS Renovation sets that out before starting. Lambeth Council inspects exactly as it would on a modern Lambeth house. Ask on 07472 424 226 how open-plan conversion differs at an SW16 address of that particular age.
In most cases, yes. The wall between the front and middle receptions in a Streatham terrace is usually load-bearing, so a structural engineer sizes a steel beam to carry the load and we install it on padstones with proper propping. It is a Building Regulations job that Lambeth building control signs off, and if the beam bears into the party wall you serve notice on your neighbour first.
Yes, boundaries are not something we price against. Open-plan conversion runs across Lambeth and into South London, so an address on the edge of Streatham or over towards Brixton is no harder to service. GS Renovation will say plainly if travel makes it impractical. Ring 07472 424 226 with the SW16 postcode and we will confirm. The survey that follows is free and carries no obligation. Aftercare is no more difficult a few streets further out.
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 Streatham. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Streatham and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Streatham. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.