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Rear Extension Builders
Build from scratch with a home shaped around your plot, your layout and how you want to live, with design, planning and build stages kept aligned all the way from day one.
Why Extend with SB
Doors, glazing and layout planned around access.
Cooking, dining and movement shaped together.
Openings, beams and foundations planned before.
Roof choices shaped around light, drainage and finish.
Rear Extension Options
The right rear extension depends on whether you need more kitchen space, better dining flow or a stronger connection between home and garden.
Create room for cooking, storage and easier family flow at the back.
Make mealtimes feel less cramped, brighter and more sociable every day.
Open up calmer space for relaxing, gathering and easier family use.
Bring in more light and create a stronger garden-facing connection.
Use clean lines, glazing and roof lanterns for a brighter finish.
Soften the look of the extension and help it match older homes.
Rear extensions work best when light, layout, structure and approvals are resolved early, before changes create cost or leave the space awkward.
Rear Extension Design
Rear extension design should improve how cooking, dining and relaxing connect, so the new space feels joined up.
Planning Permission for Rear Extensions
Planning permission or permitted development depends on depth, height, boundaries and how the design affects the original house.
Structural Opening for a Rear Extension
Foundations, drainage, structural openings and roof choices need planning early so the build stays sound and useful.
Building Regulations for Rear Extensions
Building regulations cover structure, insulation, drainage and glazing, with building control checking key stages before completion.
Cost of a Rear Extension
Cost and timing depend on size, structure, roof type, doors, finishes, access and approvals before work begins.
Get in touch today for a free detailed quote
What people ask about rear extensions
That depends on depth, height, boundaries and design. Some projects fit permitted development, while others need planning permission before work begins.
The cost depends on size, foundations, structural work, roof type, glazing and finishes, so a site visit helps shape a realistic quote.
Yes. An open-plan rear extension can join kitchen, dining and living areas, especially where structural openings help old and new spaces flow.
Often, yes. Bifold doors can improve light and garden connection, but glazing size, orientation and insulation affect how the finished room performs.
Timing depends on approvals, structure, weather, inspections and finish level, with the rear extension timeline shaped by complexity and site conditions.
Recent Rear Extension Work
Browse recent rear extension projects to see how kitchens, dining spaces and living areas become brighter, calmer and better connected to the garden.
Rear Extension Contractors
Share what feels cramped now, how you want the rear space to open up and get clear advice before drawings and approvals begin.
Free Rear Extension Guide
Use the guide to compare layouts, check approvals and spot cost pressure points before you commit to drawings, quotes or build .
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Request your free guide before drawings, approvals and rear extension plans start shaping the build.
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