Open-plan kitchen, diner and living conversions in Southwark. Trusted, professional, 30+ years' hands-on experience.
GS Renovation opens up Southwark homes for modern living, from knock-throughs in Peckham terraces to kitchen-diners in Dulwich villas and broken-plan layouts in Bermondsey warehouse flats. With over 30 years across SE1, SE16, SE17 and SE22, we turn cramped period rooms near Borough Market and the South Bank into bright, connected spaces that are properly engineered.

The classic Southwark knock-through joins the two reception rooms of a Georgian or Victorian terrace, but the dividing wall is usually load-bearing and often ties into the party wall shared with next door. We start with a structural engineer sizing the steel, then form the opening on padstones with staged demolition and temporary propping, so the floors and stack above stay fully supported throughout.
Not every scheme is a full knock-through. In Dulwich and Camberwell family homes we create kitchen-diners by opening the rear rooms, and broken-plan layouts using Crittall-style glazed dividers give a sense of openness while keeping cooking smells and noise in check. In SE16 warehouse conversions many partitions are non-structural, so a broken-plan rework can be lighter, though the freeholder's consent still governs the change.
An internal open-plan conversion is a Building Regulations job, not a planning one, so Southwark Council's building control inspects the steel, its bearings and the propping. Planning or listed-building consent only arises if the work touches the exterior of a property in one of the borough's conservation areas or a listed Dulwich or Bermondsey building. We identify which regime applies to your address before quoting.
Where the new opening cuts into the party wall shared with a neighbour, the Party Wall Act applies and you serve notice first. In Bermondsey and other SE16 leasehold flats we instead obtain the freeholder's licence to alter, coordinate with the managing agent and respect building-management rules on sound insulation between flats. From engineer to sign-off, one team keeps the whole conversion moving.
For open-plan conversions in Southwark, GS Renovation gives you a single accountable team rather than a scatter of trades. We arrange the engineer's beam design or freeholder consent, and Southwark building control sign-off, then deliver the steel, propping and finishes cleanly in your home. Over 30 years across the borough backs every knock-through.
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…
George did a great job on our new bathroom. He is a really friendly and helpful guy and always ready to discuss any issues or concerns and come up…
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…
FAQ
Labour, materials, approvals, reinstatement and the programme. GS Renovation writes the open-plan conversion quotation for your SE1 home so each element can be checked against another builder's, which is impossible when a rival supplies one round number. The Southwark Council element and any engineer's fee are visible. Email info@gsrenovationltd.co.uk to see the layout before the survey. That Southwark survey is free and carries no obligation, at an SE1 address or anywhere else in Southwark. 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.
You get one in writing at quotation stage, not afterwards. The open-plan conversion timescale for an SE1 home is broken into stages with the Southwark Council inspections marked, so you can see where a Southwark project can and cannot be accelerated. If the property throws something up, GS Renovation re-plans openly rather than letting the dates drift. Weekly updates follow throughout the Southwark job. Ask GS Renovation on 07472 424 226 how a comparable SE1 project actually ran.
Yes. We are rated 4.9 from 31 reviews on MyBuilder, all public and written by the homeowners themselves. The work behind them is the same open-plan conversion we would carry out at your SE1 address, on similar Georgian and Regency townhouses, many listed or within conservation areas across Southwark. GS Renovation will also give you addresses of finished Southwark projects. Seeing one in person is worth more than reading about it. Ring 07472 424 226 to arrange that. The Southwark rating covers work of exactly this kind.
It can, and it is worth planning for. One large space in an SE1 property behaves differently to two small ones, so radiator sizing or underfloor heating is reconsidered as part of the Southwark conversion rather than left as it was.
Mainly that investigation comes before commitment. Open-plan conversion at an SE1 property of that age can meet altered structure, aged timber or previous work that was never signed off, so GS Renovation opens up carefully and confirms before pricing the Southwark job. An engineer is appointed where the design needs one. Southwark Council inspects the structural stages in the usual way. GS Renovation will explain on 07472 424 226 what open-plan conversion involves in an SE1 house of that age.
Usually yes, but the dividing wall is almost always load-bearing, so it needs a steel beam sized by an engineer and signed off by Southwark building control, not planning permission. As the wall typically ties into the shared party wall, the Party Wall Act also applies. We handle the design, steelwork together for your Peckham home.
The whole borough, and a good way beyond it. GS Renovation carries out open-plan conversion across Southwark, Lambeth and much of South London, with no surcharge for distance within Southwark. Knowing the Southwark Council building control process locally is a practical advantage on an SE1 job. Email info@gsrenovationltd.co.uk with the address for a free survey. We will say plainly if a property is too far out. Aftercare is no harder from one end of the borough to the other.
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 Southwark. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Southwark and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Southwark. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.