Building work in Orpington: area guide
Every trade under one contract across Orpington and BR6, BR5. Structural work, extensions, kitchens and bathrooms, building control handled for you.
This is our area guide to building work in Orpington (BR6, BR5, Bromley): the housing, the council rules that apply (Bromley Council for planning) and every service we offer here. For whole-house refurbishment go to Home renovation in Orpington.
The semi is the standard unit of housing in Orpington, some from the 1930s and more from the decades after the war, and once you know how one is built you know how most of them are built. Cavity walls, a hipped roof, regular joist spans, a bay to the front and a plot generous enough to work on without fighting the street. In the roads spreading out from Priory Gardens and the High Street the plan repeats with small variations, so the same few jobs recur in the same order, predictable in a way inner London never is. We cover BR6 as a visiting contractor with no yard here.
Orpington has about 10,530 homes on the Council Tax list: 6% pre-1919, 39% interwar and 55% post-war, with flats making up 17% and houses 83%. VOA Council Tax stock of properties, March 2025, for Orpington West, Orpington East and Orpington South. Counts rounded by the VOA.
The standard Orpington semi plan opens at the back
The original layout gives you a front room, a back room and a narrow kitchen at the back, with a larder and an outside store that stopped earning their keep long ago. Many projects here begin by removing the old back wall and building across the back for the wide kitchen and dining space the house was never designed for. Because the first floor and roof above bear on the rear wall being altered, that is RSJ installation before it is a house extension: the steel is designed by a structural engineer we appoint, and we build to it with propping, staged demolition and inspected bearings.
Permitted development is often available on a semi-detached or detached house at three and four metres respectively, with a deeper single storey addition possible through the prior approval route where Bromley Council consults the neighbours. That has to be confirmed rather than assumed, since earlier additions and designations can remove it. Foundations are then the engineer's call, on these plots often driven by ground conditions and mature planting nearby. Building control inspects the open trench before concrete, and again as the damp proof course, structure, drainage and insulation go in.
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Every Service We Offer in Orpington
One accountable team for every trade in Orpington. Starting figures are indicative London ranges from published 2026 cost guides, not a quotation. Each service page itemises the figures and names the sources.
FAQ
Building work in Orpington: common questions
Does converting my garage need planning permission?
Usually not, where the work is internal and the garage is already attached to the house, though filling in the door opening changes the elevation and permitted development rights can be removed on some estates or in designated areas. It always needs building control approval, because you are creating habitable space, and it sits with structural alteration work. We confirm the planning position with Bromley Council for your address and coordinate the inspections.
Can I build deeper than three metres at the rear?
Potentially, through the prior approval route, where you notify Bromley Council and neighbours are consulted before a decision is made. On a semi-detached house the ordinary permitted development depth is three metres and on a detached one four, and the larger option is not automatic. Earlier additions count against the allowance, so we establish what your property still has available before any drawings are commissioned.
How disruptive is building across the back while we live there?
Manageable for most of it, because the new shell is built outside the existing back wall and that wall stays up until the shell is watertight. The genuinely disruptive phase is the week when the opening is formed and the steel goes in, plus the kitchen renovation fit. We zone the site, keep dust screens up, protect the route in and out, and agree the noisy operations with you in advance so the household can plan around them.
Do you carry out the structural design yourselves?
No, we appoint an independent structural engineer and build to their design. GS Renovation is a contractor: we coordinate the engineer, the building control applications and the inspections, and we carry out the construction. That separation is what makes the finished work verifiable when you come to sell. Installations we carry out carry a five year guarantee.
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great attention to detail. I've already recommended him to others.
Giorgio is an excellent and intelligent workman, and with very reasonable prices! He installed a kitchen extractor fan in a complicated situation, including making a hole through the wall and installing the exhaust completely from the…
George was very friendly and helpful from start to finish. He worked really hard to ensure our kitchen was installed to a high standard and was accommodating to the changes we wanted along the way. We're really happy with the end result…
Planning Building Work in Orpington?
Free, no-obligation quote for any renovation work in Orpington. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.