Open-Plan Conversions Catford

GS Renovation creates open-plan spaces across Catford, opening up the Victorian and Edwardian terraces of SE6 into bright kitchen-diners and knock-through living areas. We handle the structural side properly, from engineer-sized steels to Lewisham building control sign-off, so your period home flows the way modern family life needs.

In Catford, a knock-through finished as one room typically costs £3,000 to £8,000 or more, including the steel beam (indicative London ranges, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Catford: the structural engineer we appoint designs the steel, we install it, and building control signs it off.

How the job runs

1. Free site survey at your Catford address, covering the walls, services and floor levels, and an itemised quote.
2. The engineer we appoint sizes the beam, and the work is registered with Lewisham Council building control or an approved inspector. On a shared wall you serve the party wall notice as building owner; we supply the drawings.
3. Props in, opening cut, beam on padstones; then floors, heating and electrics are joined up.
4. Building control inspects the steel before it is covered. We finish the room, and the completion certificate follows.

Open-plan conversions for Catford terraces

The classic Catford layout, two reception rooms front and back with a narrow kitchen in the closet wing, was designed for a very different way of living. Knocking the receptions together and opening the kitchen into the dining space changes how these SE6 homes feel, but the spine wall between the rooms is load-bearing, so a properly sized steel beam has to take over its job.

We tailor each conversion to the house. A full knock-through suits some families, while others prefer broken-plan with a Crittall-style glazed divider that keeps the two spaces distinct while letting light run through. Either way the structural opening is engineered first, and the side return and closet wing are factored into where the beam bears.

Housing in Catford

The stock in Catford runs to roughly 7,650 dwellings, 66% of them flats and 34% houses, built 61% before 1919, 4% between 1919 and 1939 and 33% after 1945. Where most homes are flats, opening up a flat in Catford changes the protected route from the bedrooms to the front door, so building control checks the escape before any wall comes out.

Open plan inside a converted Catford flat

With 66% of Catford homes being flats, an open plan scheme here may well be inside a flat, and in the period streets that can mean a house that has been split up. In that kind of flat the front door onto the common stair is the barrier between your home and everyone else's escape route, and the inner hall behind it may be the protected way out from the bedrooms. Open the kitchen straight onto that hall and a fire in the kitchen stands between the bedrooms and the front door. Where Lewisham is the building control body, its own inspectors check fire safety, so a Catford open plan layout is designed around the route out before it is designed around the view.

That is one reason we prefer a full plans application for open plan work in a Catford conversion. On a full plans application Lewisham Building Control sends its decision within five weeks, unless the applicant has given a three week extension. Within that time the fire layout, the steel and any sprinkler or detection upgrade are all settled on paper. The quicker route would leave those questions to site, where a change of layout means moving a wall that has already been built and plastered.

Steelwork and sign-off in SE6

Opening up a Catford terrace means installing an RSJ that a structural engineer has sized for the loads above. The beam bears onto padstones at each end, the floor above is propped on Acrows while we remove the wall in stages, and the steel is lifted in and pinned up tight before the props come out, so the house stays stable throughout.

This is Building Regulations work rather than a planning matter, so Lewisham Council's building control inspects the beam and its bearings and issues the completion certificate. Where the spine wall meets the party wall shared with your neighbour, the Party Wall Act applies and you serve notice first as building owner, using the drawings we give you, then finish with plastering and making good so the new open space is ready to decorate.

• Structural engineer coordination and building control sign-off
• Knock-throughs between front and rear reception rooms
• Side-return integration for a wider ground floor

VOA Council Tax stock of properties, March 2025, for Catford East & Mountsfield Park and Catford Bridge. Counts rounded by the VOA.

Work in Catford rarely sits on its own, so you may also want home renovation in Catford, open-plan conversion across Lewisham, side return infills, garage conversions, open-plan conversion anywhere in London and Building Regulations Explained.

Why Choose GS Renovation in Catford

GS Renovation is the single team behind your Catford open-plan conversion: the engineer's beam design coordinated, building control inspections arranged and the build itself done by our own team. We prop and remove safely while you stay in the home, protect floors and keep dust contained, and hand back a clean open space signed off by building control, drawing on our founder's 30+ years on the tools.

Reviewed jobs near Catford

1 MyBuilder review from Crofton Park, with each customer's own job title:

• Replace small section of wooden worktop, sink, tap and gas hob, Crofton Park, 17 Apr 2024 (5 out of 5)

Read all 31 on our reviews page.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.