Extensions & Loft Conversions in Waterloo
In Waterloo and across Lambeth we are most often asked for rear and side-return extensions and loft conversions on Edwardian houses in Streatham. The borough has a long list of conservation areas, especially in the north and around Clapham and Brixton, so front elevations, windows and roofs often need permission. Remember that flats and maisonettes do not have the permitted development rights that houses do.
Extensions & Lofts in Waterloo
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 Waterloo
Homes in Lambeth
Kennington and parts of Stockwell and Clapham have Georgian and early Victorian terraces and squares, while Brixton and Herne Hill are mainly later Victorian houses, many split into flats. Streatham and West Norwood have Edwardian houses and inter-war mansion blocks, and Vauxhall and Waterloo combine council estates with recent riverside towers.
Planning and the council
The borough has a long list of conservation areas, especially in the north and around Clapham and Brixton, so front elevations, windows and roofs often need permission. Remember that flats and maisonettes do not have the permitted development rights that houses do.
Nearby
We also cover Brixton, Clapham, Streatham, Stockwell, Kennington, Vauxhall, West Norwood, Herne Hill, Tulse Hill, Oval and Gipsy Hill.
FAQ
Extensions & Lofts in Waterloo
Not answered here? Call 07595 386864 and ask us directly.
Do you carry out extensions & loft conversions in Waterloo?
Yes. Waterloo is in Lambeth, where we work every week alongside Brixton, Clapham, Streatham and Stockwell.
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 Waterloo
Other work we do here
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.