Why central London needs a different builder
A Grade II listed Georgian house in Chelsea is not a Victorian terrace in Leytonstone with a different postcode. The materials, the detailing, the conservation officer requirements, the party wall complexity, the parking restrictions — every element of the project is different. We have built the team and the supplier relationships specifically for this work: lime plaster suppliers, period sash window joiners, restoration ironmongery sources, decorators trained in heritage colour matching.
Conservation areas across central London
We have completed projects in the Notting Hill conservation area (Pembridge, Ladbroke), the Holland Park conservation area, the Chelsea conservation area, and the South Kensington conservation area. We work with conservation officers from Westminster, Kensington and Chelsea, and Hammersmith and Fulham councils.
Listed building consent and works
We do not submit listed building consent applications ourselves but we work alongside the heritage consultant who does, attend conservation officer site visits, and ensure that the work delivered exactly matches the consent granted. Most listed property projects in central London require both listed building consent and planning permission and the two run concurrently.
Logistics and access
Central London logistics are demanding. Parking suspensions cost more than in outer boroughs and have shorter availability windows. Skip licences in some streets are not granted at all and waste must be removed by daily service. Scaffold over the public pavement requires Highways consent. Materials delivery often has to happen overnight or before 0700. We absorb all of this into the programme and pricing at the start so you do not get surprised.
Loft conversions in central London
Loft conversions in central London are constrained by listing controls and conservation area policies. Most central London loft conversions are Velux-only because dormer and mansard work is rarely consented in the Chelsea, Notting Hill, Holland Park and South Kensington conservation areas. Where consent is granted, mansards are typically designed to match the original Mansart roof profile of neighbouring buildings. Costs in central London run £75,000 to £150,000 for Velux conversions and £150,000 to £350,000+ for consented mansards.
Building control submissions go to Westminster, Kensington and Chelsea, or Hammersmith and Fulham. We have completed loft works in Belgravia, Chelsea and Notting Hill across the past decade. For mansard, dormer and hip-to-gable type comparison see the loft conversion service page.
House extensions in central London
Rear and side return extensions in central London almost always require full planning permission and conservation officer consultation. Designs typically use traditional materials (London stock brick, slate, lime mortar) with carefully detailed glazing. Costs run £5,000 to £7,500 per square metre because of specification controls, party wall complexity and logistics. Wrap-around and double-storey extensions on stucco-fronted townhouses are technically demanding and we work with structural engineers who specialise in Georgian and Regency stock.
For permitted development rules and cost ranges across formats see the house extension page. Listed building consent and planning permission run in parallel — we coordinate both alongside the heritage consultant.
Full refurbishments in central London
Central London refurbishment is rarely a stripped-back exercise. A typical Chelsea or Notting Hill project is restoration first, refurbishment second — sash window repair, lime plaster, original cornicing, period door joinery, conservation-grade decoration. Budgets typically run £400,000 to £1.2m+ for a Grade II terraced house. Programme is 30 to 50 weeks because lime plaster takes longer to cure and conservation officer hold points slow the inspection cycle. See our dedicated listed building restoration page for the full specification approach.
Recent projects in this area
Project in Central London?
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