Building work in Belgravia: area guide

This is our area guide to building work in Belgravia (SW1, Westminster): the housing, the council rules that apply (Westminster City Council for planning) and every service we offer here. For whole-house refurbishment go to Home renovation in Belgravia.

Three quite different buildings sit within a hundred metres of each other in Belgravia, and each routes to a different job. Most homes, on VOA figures, are flats, including those above the shops along Elizabeth Street and towards Sloane Square, where the lease and freeholder consent come first. Facing Eaton Square and Belgrave Square are large stucco townhouses over four or five storeys, frequently listed, with consent behind every decision. Tucked behind them are the mews, small former stable buildings with a wide opening at ground level and no back door at all. We price each differently because they are genuinely different buildings.

The Knightsbridge, Belgravia & Hyde Park statistical area has about 6,020 homes on the Council Tax list: 67% pre-1919, 9% interwar and 23% post-war, with flats making up 71% and houses 29%. VOA Council Tax stock of properties, March 2025, for the Knightsbridge, Belgravia & Hyde Park statistical area, which also covers parts of Knightsbridge. Counts rounded by the VOA.

A Belgravia mews ground floor is a structural job before a room

A mews house has a footprint most people underestimate until they try to furnish it. Ground floors were built for carriages and horses: a wide opening at the front, low headroom in places, and a structure never intended to carry modern living above a garage. Turning that ground floor into habitable space is the most common request in these lanes, and replacing the vehicle opening with a supported wall and glazing makes it a structural alteration job. The same job pulls in the floor build-up and damp proofing, insulating walls that never were, and ventilation.

Everything comes through the front, because there is no rear access and usually no side. On a narrow cobbled mews with restricted parking, that means small deliveries timed to the hour and waste carried out by hand rather than skipped. It also fixes the order of works early: once a staircase or a floor slab has gone, there is no alternative route for the next load. We plan these jobs backwards from the largest single item, and one person owns the delivery schedule from first day to last.

Square townhouses route through consent, then the engineer

Where a Belgravia townhouse needs work on every floor, it is a home renovation job measured in months rather than weeks, and its value lies in the sequence: structure, then first fix services, then plaster, then joinery and finishes, each stage inspected before the next covers it. These houses have deep floor structures, solid brick in lime mortar and services added to repeatedly since the 1950s, so opening up frequently reveals more than a survey could. We build review points into the programme rather than pretending an old house will behave predictably.

Consent shapes what is possible. Where a house is listed, internal features are protected alongside the elevation, and listed building consent from Westminster City Council is needed before they are altered. A new opening is RSJ installation work, designed by a structural engineer we appoint, not by us, and building control inspects the bearings before they are covered. Where a beam bears into the wall shared with the adjoining house, the Party Wall Act applies and notice is served before work begins.

Where to go next for work in Belgravia: kitchen renovation in Belgravia, house extensions in Belgravia, the Westminster area guide, building work in Pimlico, building work in Mayfair and Renovations That Add Value.