House Renovation
House Extensions – Residential Home Extension Services
Prime Renovation delivers house extensions across Greater London (especially West London), Surrey, Berkshire, Buckinghamshire and Oxfordshire (England). We build single-storey and multi-storey house extensions that add space, improve layout flow and integrate cleanly with the existing property—managed under one coordinated programme.
OUR PROCESS
House Extensions for Existing Homes and Properties
A successful home extension is more than adding square metres. It requires careful planning around structure, access, neighbour matters, drainage and services (electrics, plumbing, heating), plus a coherent finish that matches the existing home. We coordinate the extension build with internal fit-out so the old and new spaces feel consistent.
SERVICES
CORE SERVICE BLOCKS
• Rear House Extensions for Additional Living Space
Rear house extensions are one of the most popular ways to create open-plan kitchen-diner and family living areas. We deliver single-storey rear extensions and, where appropriate, double-storey rear extensions, coordinating structural steelwork, roof build-up, drainage and glazing so the extension integrates with the existing structure.
Many clients also want large-format doors and level thresholds to connect indoor and outdoor living. We plan floor build-ups early to manage levels, insulation, drainage falls and waterproofing around openings.
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OUR PROCESS
House Extensions – Types, Costs and Design Options (London & the Home Counties)
House extensions are a practical way to add space and improve the layout of an existing home. Homeowners searching for house extensions London, house extensions West London, house extensions Surrey, house extensions Berkshire, house extensions Buckinghamshire or house extensions Oxfordshire usually want an extension builder who can coordinate design, structure, Building Regulations and finishing to deliver a clean, integrated result.
Common extension types include single-storey rear extensions, side-return extensions, wraparound extensions, and two-storey extensions. The right option depends on plot constraints, daylight, neighbour matters, access and your budget.
COST
How much do house extensions cost?
House extension cost varies by groundworks, structural steelwork, glazing, roof design, and internal specification. In our typical service areas, a good-quality single-storey extension often starts from around £60,000–£90,000+ depending on size and complexity, while larger extensions or projects with significant internal remodelling commonly fall in the £100,000–£250,000+ range. Planning, professional fees and VAT may apply depending on your project structure. The most accurate route is a measured survey and a defined scope.
TIMELINE
Typical house extension stages we manage include:
RESULTS
House Extensions in London, Surrey, Berkshire, Buckinghamshire and Oxfordshire
We deliver home extensions across Greater London and the surrounding counties with tidy sites, clear communication and consistent workmanship.
If you are considering an extension and want advice on feasibility, permissions and practical sequencing, contact our team to arrange a consultation.
FAQ
House Renovation – Frequently Asked Questions
Costs vary by size, structure and specification. As a practical guide in our service areas, good-quality single-storey extensions often start from around £60,000–£90,000+, while larger scopes and major remodelling can be higher. A measured survey and defined scope are the fastest route to an accurate quote.