Extensions & Loft Conversions in Isleworth
In Isleworth and across Hounslow we are most often asked for single-storey rear extensions on 1930s semis and loft conversions. Chiswick and old Isleworth have conservation areas with tight control over external changes, and riverside properties sit in Thames flood zones. In the west of the borough, aircraft noise makes glazing and roof insulation choices more important than usual.
Extensions & Lofts in Isleworth
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 Isleworth
Homes in Hounslow
Chiswick is Victorian and Edwardian, from terraces to large detached houses, and includes much of the Bedford Park garden suburb. Brentford has older cottages and new waterside flats, while Isleworth, Osterley, Heston, Hounslow and Feltham are mostly inter-war and post-war semis and terraces.
Planning and the council
Chiswick and old Isleworth have conservation areas with tight control over external changes, and riverside properties sit in Thames flood zones. In the west of the borough, aircraft noise makes glazing and roof insulation choices more important than usual.
Nearby
We also cover Chiswick, Brentford, Hounslow, Feltham, Heston, Hanworth, Bedfont, Cranford, Osterley and Gunnersbury.
FAQ
Extensions & Lofts in Isleworth
Not answered here? Call 07595 386864 and ask us directly.
Do you carry out extensions & loft conversions in Isleworth?
Yes. Isleworth is in Hounslow, where we work every week alongside Chiswick, Brentford, Hounslow and Feltham.
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 Isleworth
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.