House Extensions in Virginia Water
Trusted builders for homeowners across Virginia Water and Surrey. Clear written quotes, honest timelines, built to the standard your home deserves.
- Initial site survey and feasibility assessment (free)
- Permitted Development advice or full planning application management
- Structural drawings and engineer's calculations
- Building Regulations application and stage inspections
- Full groundworks and foundations
- Structural steelwork and masonry
- Roof structure, weatherproofing and insulation
- Windows, doors and glazing — bi-fold, patio or bespoke
- First and second fix electrics and plumbing
- Underfloor heating (if in scope)
- Plastering, screeding and internal finishing
- Building Control completion certificate
Virginia Water homeowners have high expectations when it comes to building work — and they should. Properties in the area represent a significant investment, and the standard of the work needs to match.
Lavington Build works with homeowners across Virginia Water, Egham, Sunningdale, Ascot, Chertsey and Weybridge. We handle the complete extension process with one team and one point of contact throughout.
Virginia Water (GU25), Egham, Sunningdale, Ascot, Chertsey, Staines-upon-Thames, Weybridge, Windlesham, Camberley
Fixed written quotes. Labour and materials listed separately. No surprises at invoice.
One team throughout. No rotating cast of subcontractors.
Experience with larger Surrey properties. Virginia Water's detached houses have different requirements from urban terraces.
Building Regulations managed end-to-end. Application to completion certificate.
Fully insured. Public liability cover on every project.
How much does a house extension cost in Virginia Water?
Between £1,800 and £2,800 per square metre. A single-storey rear extension of around 20–25 sq m usually costs £35,000–£60,000 depending on specification.
Do I need planning permission?
Most single-storey rear extensions fall under Permitted Development. Virginia Water and Sunningdale have a high proportion of detached houses with more PD flexibility. We confirm during the free survey.
How long does an extension take?
A single-storey extension takes 12–18 weeks. Larger or more complex extensions run 20–28 weeks.
Does an extension add value?
Yes — typically 10–20%. Given Virginia Water's property values, the absolute return is substantial.
Get in touch for a free site survey and fixed written quote. We cover Virginia Water, Egham, Sunningdale, Ascot, Chertsey and surrounding Surrey areas. We reply within 1 working day.