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Home Extensions

Single and double-storey extensions to expand your living space. Full project management from planning permission to completion, including foundations, construction, plumbing, and finishing.

Benefits of Our Home Extensions

Why choose SW Builds & Plumbing for your home extension project.

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Complete Planning Service

We handle all aspects from initial design and planning applications to building regulations. Expert guidance through the entire planning process to ensure approval.

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Full Build Service

From foundations to finishing, we manage every aspect: structural work, roofing, windows, plumbing, electrical, insulation, and interior finishing. One team, seamless project.

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Significant Value Addition

Home extensions typically add substantial value to your property. A well-planned extension can increase property value by 20-30% or more, often paying for itself.

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Tailored to Your Needs

Design extensions to suit your specific requirements - extra bedrooms, larger kitchen, home office, or additional living space. Customized to your lifestyle.

Professional Project Management

Experienced project managers coordinate all trades and suppliers. Regular updates, on-time completion, and work within agreed budgets.

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Building Regulations Compliant

All work fully complies with building regulations and is signed off by building control. Comprehensive guarantees and full insurance coverage.

Previous Home Extension Projects

Examples of our recent home extensions across the Southwest.

Double-Storey Rear Extension

📍 London, SW7

Large double-storey rear extension adding 45m² of living space. Ground floor created open-plan kitchen-diner, first floor added two bedrooms and bathroom. Full structural work, new foundations, complete plumbing and electrical installation, and high-quality finishes throughout.

Project Type
Double-Storey
Duration
12 Weeks
New Space
45m²
Client Rating
★★★★★

Single-Storey Kitchen Extension

📍 London, W8

Single-storey rear extension creating a spacious open-plan kitchen and dining area. Removed rear wall, added 25m² extension with bi-fold doors, new kitchen installation, underfloor heating, and complete plumbing and electrical work. Transformed the home's main living space.

Project Type
Single-Storey
Duration
8 Weeks
New Space
25m²
Client Rating
★★★★★

Side Extension with Home Office

📍 London, N10

Side extension creating a dedicated home office and utility room. Added 18m² of space with separate entrance, full electrical installation, plumbing for utility, and sound insulation. Perfect workspace separate from main living areas.

Project Type
Side Extension
Duration
6 Weeks
New Space
18m²
Client Rating
★★★★★

Wrap-Around Extension

📍 London, E8

Comprehensive wrap-around extension combining rear and side extensions. Created new kitchen-diner, utility room, and additional bedroom with en-suite. Total 50m² added, full structural work, complete services installation, and luxury finishes. Transformed the entire ground floor layout.

Project Type
Wrap-Around
Duration
14 Weeks
New Space
50m²
Client Rating
★★★★★