Open-plan kitchen, diner and living conversions in Hillingdon. Trusted, professional, 30+ years' hands-on experience.
GS Renovation creates open-plan spaces across Hillingdon, turning the boxed-off rooms of 1930s semis in Uxbridge, Ruislip and Hayes into flowing kitchen-diners and light-filled living areas. With over 30 years of structural experience in UB7, UB10 and HA4, we handle the steel, the sign-off and the finish on interwar family homes.

The 1930s semi was designed around separate rooms: a front parlour, a rear dining room and a small kitchen beyond. On Hillingdon's generous suburban plots there is real potential to open these up, whether a straightforward knock-through between the two receptions, a full-width kitchen-diner across the back, or a broken-plan layout using a Crittall-style glazed divider to keep light flowing while zoning the space. Each option depends on removing or opening a load-bearing wall.
That solid spine wall carries the floor and roof above, so a structural engineer sizes a steel beam to span the new opening. The RSJ bears onto padstones set into the remaining brickwork, we prop the structure temporarily, remove the wall in staged sections, then lift the beam home before easing the props out. Where you want a Crittall divider, the beam still carries the load and the glazing simply sits beneath it as a non-structural screen.
Opening up your Hillingdon home is a Building Regulations job, not a planning one. You do not need planning permission to knock two rooms together inside an interwar semi, but building control must inspect the beam, its bearings and the padstones, and Hillingdon Council or an approved inspector issues the certificate. Only exterior alterations in a conservation area or to a listed building would need planning consent, which rarely affects an internal open-plan conversion.
As these are semi-detached houses, the new beam frequently bears into the party wall shared with next door, so the Party Wall Act applies and you serve notice on the adjoining owner before starting. We coordinate everything: the engineer's design, safe propping and staged demolition, the building control inspections, and the replastering and making good so your new kitchen-diner or broken-plan space is finished cleanly and fully certified.
Hillingdon homeowners choose GS Renovation for open-plan conversions because one accountable team carries the project from first sketch to final certificate. We arrange the structural engineer, serve the size and install the steel, book every building control inspection and finish the space tidily in your occupied home, all backed by 30+ years across the borough.
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
He was very very good. He just got on with the job and we was beey pleased with the result. He Also cleaned everything away when he finished. Will…
I had a bathroom refit which I was very pleased with and I then went on to get my kitchen refitted as I was so happy with the way he worked. Even…
FAQ
Labour, materials, approvals, reinstatement and the programme. GS Renovation writes the open-plan conversion quotation for your UB3 home so each element can be checked against another builder's, which is impossible when a rival supplies one round number. The Hillingdon Council element and any engineer's fee are visible. Email info@gsrenovationltd.co.uk to see the layout before the survey. That Hillingdon survey is free and carries no obligation, at a UB3 address or anywhere else in Hillingdon. 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.
It depends on scope, and we will not pretend otherwise on the phone. Once the UB3 survey is done GS Renovation can give a Hillingdon homeowner real dates for open-plan conversion, including the Hillingdon Council inspection points. Material lead times are ordered against that programme early. Ring 07472 424 226 and we will describe what an interwar semi-detached property usually needs. Nothing about the Hillingdon dates is guessed once the free survey at UB3 is done.
All of the building control side, and most of the rest. The application to Hillingdon Council, the inspection bookings and the certificate for an open-plan conversion job at UB3 are handled by GS Renovation rather than left with the Hillingdon client. Party wall notices are prepared by us but must be served by you as building owner. We explain exactly what that involves. Email info@gsrenovationltd.co.uk for the Hillingdon detail. Nothing about the Hillingdon application is left for you to chase.
It can, and building control will look at it closely. Opening a hallway into a living space in a Hillingdon property removes the protected route to the front door, so interlinked alarms and sometimes a protected alternative are required. We resolve that with Hillingdon Council at design stage.
The large majority of it. Interwar semis and short terraces with hipped roofs and rear kitchens make up most of the housing around UB3, so open-plan conversion on them is what GS Renovation does week in and week out rather than occasionally. That familiarity is why a Hillingdon quotation is priced from experience. References across Hillingdon are available on request. Email info@gsrenovationltd.co.uk and we will send addresses of several recent open-plan conversion projects on properties of that age near UB3 in Hillingdon itself.
A broken-plan layout is ideal for that. We remove the load-bearing wall and carry the load on a steel beam sized by the engineer, then fit a Crittall-style glazed divider beneath it as a non-structural screen. Light and sightlines flow through while the space still feels zoned. Building control signs off the beam, and you serve any party wall notice needed on your neighbour.
No minimum. GS Renovation takes small open-plan conversion work at a UB3 property as readily as a full project, and a modest job is how many of our larger Hillingdon contracts began. The survey is free either way. Ring 07472 424 226 and describe what you have in mind for your Hillingdon home. We will say honestly if another trade suits you better. The UB3 survey is free whether the Hillingdon job is large or small.
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 Hillingdon. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Hillingdon and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Hillingdon. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.