Extend Your Home, Elevate Your Lifestyle
A well-designed home extension is one of the most rewarding investments you can make. Whether you need a stunning open-plan kitchen-diner, a spacious family room, or a ground-floor addition that transforms how your family lives, Ashton Paul delivers contemporary home extensions that blend seamlessly with your existing property.
With over 37 years of experience in the property industry and operating across London and surrounding areas since 2005, we manage every aspect of your extension — from initial design concepts and planning applications through to construction and handover.
Home Extension Questions, Answered Clearly
Do I need planning permission for a home extension?
Some home extensions can be built under permitted development, but many London and Surrey projects still need planning advice because size, height, boundaries, conservation status and previous alterations can change the answer.
Do I need building control drawings for an extension?
Yes, a residential extension normally needs building control information showing structure, insulation, drainage, fire safety and construction details so the work can be approved and priced properly.
Is design and build better than hiring an architect separately?
Design and build can be better for homeowners who want one accountable team to connect design, approvals, specification, budget, builder procurement and project management rather than managing separate consultants themselves.
Can Ashton Paul manage party wall, planning, building control and contracts?
Ashton Paul can advise on party wall requirements, manage planning and building control stages, prepare the specification of works, support builder pricing and use JCT contractual matters during construction.
For budget context, read how much an extension can cost, review the Seven Step Process, or use the quick estimate tool.
Our Home Extension Services
Rear Extensions
Open up your ground floor with a rear extension that creates seamless indoor-outdoor living. Perfect for kitchen-diners and family spaces.
Side Return Extensions
Reclaim wasted side return space to dramatically widen your kitchen or living area. A popular choice for Victorian and Edwardian terraces.
Wrap-Around Extensions
Combine side and rear extensions for maximum space. Ideal for creating large open-plan layouts with distinct living zones.
Double-Storey Extensions
Add space on two levels for bedrooms above and living areas below. A cost-effective way to significantly increase your floor area.
Orangeries & Garden Rooms
Bring the outside in with a light-filled orangery or garden room that provides a versatile, year-round living space.
Planning & Building Control
We handle all planning applications, permitted development assessments, building regulations, and structural engineering requirements.
Why Choose Ashton Paul for Your Extension
Design & build under one roof — single point of responsibility
Qualified Building Surveyor BSc (Hons) leading every project
Our proven Seven Step Process protects your investment
Projects from £100k to £1m+ across London and Surrey
5.0 stars from 48+ Google reviews
Fixed-price contracts with no hidden extras
Full planning application and building control management
Architectural design tailored to your property and lifestyle