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Extensions & Loft Conversions in Westminster
We build extensions and convert lofts across Westminster. A large share of the borough sits in conservation areas and many buildings are listed, so windows, front elevations, roofs and basements should all be checked with the council before work is planned. Leasehold flats and the big landed estates often need freeholder consent on top of planning.
Extensions & Lofts in Westminster
More house, same address.
Moving in London costs a fortune before you have carried a single box. Extending usually costs less and gets you the room exactly where you need it. We take the job from drawings and approvals to the last coat of paint, with one team and one person to call.
- Single-storey extensionsRear, side-return and wrap-around extensions with flat or pitched roofs, rooflights and wide glazed doors.
- Double-storey extensionsExtra bedrooms and bathrooms above a bigger kitchen, tied properly into the existing house.
- Loft conversionsDormer, hip-to-gable, mansard and rooflight conversions, including the stairs, insulation and fire doors that building control expects.
- Basements & garagesGarage conversions and basement rooms, tanked, insulated and finished as proper living space.
- Planning & building controlWe work with your architect or bring ours, and handle the building control inspections through to the completion certificate.
Local knowledge
Working in Westminster
The homes
Georgian brick townhouses in Mayfair and Marylebone give way to white stucco terraces in Belgravia, Pimlico and Bayswater, with mews houses tucked behind them. Maida Vale and St John's Wood have red brick mansion blocks and large villas, and there are post-war council estates in Pimlico and around Paddington.
Planning and the council
A large share of the borough sits in conservation areas and many buildings are listed, so windows, front elevations, roofs and basements should all be checked with the council before work is planned. Leasehold flats and the big landed estates often need freeholder consent on top of planning.
Where we work
Mayfair, Marylebone, Soho, Pimlico, Belgravia, Bayswater, Paddington, Maida Vale, St John's Wood, Victoria, Little Venice and Knightsbridge. Postcodes W1, W2, W9, NW1, NW8, SW1, WC2.
FAQ
Extensions & Lofts in Westminster
Not answered here? Call 07595 386864 and ask us directly.
Do you carry out extensions & loft conversions in Westminster?
Yes. We work across Westminster, including Mayfair, Marylebone, Soho, Pimlico and Belgravia.
Do I need planning permission for an extension?
Not always. Many single-storey rear extensions and loft conversions fall under permitted development, which has size limits and does not apply to flats, maisonettes or some conservation areas. We check your property at the site visit and tell you which route applies before you spend anything on drawings.
How long does an extension take?
A typical single-storey rear extension takes around 10 to 14 weeks on site once approvals are in place. A loft conversion is usually 8 to 12 weeks. We give you a written programme with the quote so you know what happens each week.
Can we live in the house during the work?
Usually yes. We seal off the working area, keep a kitchen and bathroom running wherever possible, and agree the noisy or dusty days with you in advance.
Also in Westminster
Other work we do here
Extensions & Lofts by neighbourhood
Extensions & Lofts in nearby boroughs
Ready when you are.
Tell us about the job in about a minute. We reply within 24 hours with a time for your free site visit.