Rear Extension in Mayfair

What does rear extension involve?

Single and double-storey rear extensions to add living space. Includes groundworks, structural steelwork, roofing, and weathertight shell or full fit-out.

In Mayfair W1, properties are predominantly georgian townhouses & luxury flats, which can present specific considerations for this type of work. Mayfair falls within a conservation area managed by Westminster Council, which may require additional consents for external works. The Grosvenor Estate owns much of Mayfair, with long leaseholds on Georgian townhouses around Grosvenor Square, Mount Street, and Carlos Place.

Our builders are experienced with the particular demands of properties in Mayfair and provide a detailed scope of work and written quote before starting any job. All work is fully insured and guaranteed.

Cost of rear extension in Mayfair

Prices for rear extension in Mayfair W1 depend on the scope of work, access, property type, and specification. The range above reflects typical jobs in the area. We always provide a detailed written quote — confirmed before work begins — with no hidden charges.

How long does rear extension take?

Timescales can vary depending on the complexity of the job and any access constraints. For properties in Mayfair, we schedule work to minimise disruption and confirm the full timeline before starting.

Frequently asked questions

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