Builders in Cobham for Extensions, Lofts & Refurbishment
Design and build for homes and commercial premises in Cobham, KT11. One team and one point of contact from the first drawing to handover.

Building work in Cobham
London Design & Construction designs and builds extensions, loft conversions and refurbishments in Cobham. Homes here are mostly detached houses on large plots, with older cottages around Church Street and the River Mole, and most of the work we are asked for is extensions and remodelling of detached houses, with new kitchens and glazing.
Cobham is bordered by Metropolitan Green Belt, where extensions and replacement houses are judged against the size of the original building. Planning applications and building control are handled by Elmbridge Borough Council.
Plots near the River Mole can fall within a flood zone, where a flood risk assessment is submitted with the planning application.
Cobham at a glance
- PostcodeKT11
- CouncilElmbridge Borough Council
- LandmarksPainshill Park, Cobham Mill and the River Mole
- Nearest areasEsher, Weybridge and Bookham
Our services in Cobham

Extensions
Rear, side and wraparound extensions, from footings and steels to glazing.

Loft Conversions
Dormer and hip-to-gable lofts with new stairs and shower rooms.

General Building
Full refurbishments, structural openings, panelling and period restoration.

Design Services
Layouts and drawings worked out with you before anything is built.

Plumbing
Bathrooms, heating and underfloor heating fitted as part of the build.

Electrics
Rewires, feature lighting and new circuits for every room we build.

Roofing
Flat roofs, dormers, tiling and rooflights.
- 01Design
- 02Structure
- 03Trades
- 04Handover
Full Project Delivery
One programme and one contact from drawings to keys.

Commercial Construction
Commercial fit-outs, hospitality interiors and office and retail refurbishment.
Frequently asked questions
Which parts of Cobham do you cover?
We cover the whole of Cobham (KT11), including the streets around Painshill Park and Cobham Mill. We also work in Esher, Weybridge and Bookham, all within 7 km.
Do I need planning permission for an extension or loft conversion in Cobham?
It depends on the plot. In the Green Belt around Cobham, an extension must not be disproportionate to the original house, so the size of the existing building and any earlier extensions matter. Houses within the built-up area can often still use permitted development. Elmbridge Borough Council decides applications, and we check the planning history before designing.
What kind of building work do you carry out in Cobham?
Most of the work in Cobham is extensions and remodelling of detached houses, with new kitchens and glazing. The typical properties are detached houses on large plots, with older cottages around Church Street and the River Mole. Each project has one point of contact, with design, structure, plumbing, electrics and roofing carried out by our own team.
Which council deals with planning and building control in Cobham?
Elmbridge Borough Council. Where a project needs a planning application or a lawful development certificate, the drawings are prepared before work starts, and building control inspections are arranged at each stage of the build.
Can I see examples of your work near Cobham?
Yes. Our project diary for a detached house in Bookham, about 6 km from Cobham, shows a full-width glazed extension from the dig-out in May 2025 to handover in February 2026.
Areas near Cobham
The six nearest areas we cover, closest first.
Planning building work in Cobham?
Discuss your project
Send a few details about the work and we will arrange a call or a site visit, with drawings and a clear quote to follow.