Open-plan kitchen, diner and living conversions in Totteridge. Trusted, professional, 30+ years' hands-on experience.
Opening up a Totteridge house is a different job from opening up a semi. The plan is wider, the spans are longer and the depth from front to back leaves the middle of the ground floor short of daylight. GS Renovation handles the steel, the sequencing and the rear glazing, working to an engineer's design throughout.

A typical Totteridge scheme joins a kitchen, a breakfast room and a rear reception into one space running the full width of the house. That can mean two openings rather than one, sometimes with a column or a downstand where a single flush beam would be uneconomic. The engineer decides that, and it is worth knowing early, because a flush beam sitting up between the joists costs more in labour and steel but leaves a flat ceiling, while a downstand is cheaper and reads as a deliberate division between the zones.
Depth is the second issue. These houses are often ten or twelve metres front to back, so once the internal walls go the middle of the plan has no window near it. Rooflights over the new opening are the usual fix, and on a rear projection they are rarely contentious. Broken plan works well here too: a half height wall, a run of tall units or a steel framed glazed screen keeps a sense of separate rooms in a house that was designed to have them, without shutting the light back out.
Most people who open up the ground floor also want the back wall replaced with glass. Inside the Totteridge Village conservation area that is the part that needs permission thinking, not the steel. Conservation area status controls external alterations, materials and window design, so a wide aluminium slider on a visible elevation is judged differently from the same unit on a rear elevation hidden behind mature planting. Frame material, sightlines and whether the opening matches the original masonry proportions all matter to the case officer.
There is also the fabric question. Taking out the rear wall of a large detached house removes a load path, so the engineer sizes the beam over the new opening and checks what the ends bear onto, which on a corner can mean a post down to a new pad foundation. Barnet Council building control inspects the steel, the thermal performance of the new glazing under the relevant Approved Document and the structural connections before they are covered. We coordinate all of it as one programme.
The steel is only half of an open plan job in N20. The other half is the daylight strategy across a deep plan and the consent position on the rear elevation inside the conservation area. GS Renovation runs both: engineer appointed and built to, rooflights and glazing detailed properly, Barnet building control managed through to certificate, and one team on site rather than a chain of subcontractors.
Really great job done in our bathroom to replace the shower head in the bathtub, and install a shower screen and caddy. We are very happy with the…
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
Saaid is the best craftsman I have worked with. He knows what he is doing from the very beginning. He has a great knowledge of construction…
FAQ
Rates per square metre are how quotations go wrong. What decides an open-plan conversion figure for a Totteridge home is the structure, the access at N20 and the reinstatement afterwards, none of which appear in a market average. GS Renovation itemises so the total can be traced back to real work. Homeowners across Barnet are welcome to a free survey first. Ring 07472 424 226 and GS Renovation will explain what your N20 property actually needs. 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 N20 home is broken into stages with the Barnet Council inspections marked, so you can see where a Totteridge 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 Barnet job. Ask GS Renovation on 07472 424 226 how a comparable N20 project actually ran.
It helps, provided the firm is genuinely local rather than badged that way. Knowing how two and three-bedroom Victorian terraces, a good many now split into flats are built means open-plan conversion at an N20 address is priced from experience instead of caution, and a team already working in Barnet can reach your Totteridge property quickly. GS Renovation is on sites nearby most weeks. Check insurance and reviews whoever you choose. Ring 07472 424 226 and ask where we are currently working. Insurance and Barnet references are available beforehand.
Internal work in a Totteridge house does not normally engage planning, but removing a load-bearing wall needs building regulations approval, engineer's calculations and Barnet Council sign-off. If the wall is shared with a neighbour the Party Wall Act may apply too. GS Renovation manages the whole process.
Assuming the structure is what it appears to be. In two and three-bedroom Victorian terraces, a good many now split into flats the load path at an N20 address is often not where the drawings suggest, and open-plan conversion priced on that assumption produces variations later. GS Renovation opens up and confirms before quoting a Totteridge job. An engineer is appointed wherever the design requires one. Ring 07472 424 226 and we will explain how open-plan conversion confirms the load path at an N20 address first.
Not automatically, but it does mean the design is assessed rather than assumed. Conservation area status gives Barnet control over external alterations, materials and window design, so the case turns on how visible the elevation is, the frame material and sightlines, and whether the new opening respects the proportions of the original brickwork. A rear elevation screened by mature planting is a far easier case than a flank wall facing Totteridge Green. Get the consent position settled before the steel is ordered, because the beam size follows the opening width.
All of it. We carry out open-plan conversion throughout Totteridge and into Finchley, with no travel surcharge for an N20 property. If your address sits right on the boundary of Barnet, GS Renovation will still look at it and say plainly whether it is workable. Email info@gsrenovationltd.co.uk with the postcode for a definite answer. Quotes are free and carry no obligation in North London generally. Aftercare visits reach an N20 address just as easily.
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 Totteridge. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Totteridge and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Totteridge. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.