Backland Development: Building a Home in Your Garden

With housing in short supply, more homeowners are looking at backland development — building a new home on land behind or beside existing houses, often at the bottom of a large garden. It can unlock real value, but it is one of the more challenging things to get through planning. Here is what to weigh up.

What is backland development?

Backland development means building on land that sits behind the established building line — typically the rear part of a garden, or an enclosed plot reached from the side or rear of a property. Related “infill” development fills a gap between existing buildings. Both rely on having genuine, usable access.

What the policy position says

National policy (the National Planning Policy Framework, updated in December 2024) supports making effective use of land and delivering more homes, while protecting the character and amenity of existing areas. In London, the London Plan encourages appropriate higher densities, particularly in well-connected locations with good public transport. Note that residential gardens are not classed as previously developed (brownfield) land, so garden schemes are assessed on their planning merits rather than benefiting from brownfield support. Your local plan and any neighbourhood plan will set the detailed policies that decide your scheme.

Can you build a house in your garden?

It is possible, but not guaranteed. Councils will look closely at:

• Access: safe, adequate vehicle and pedestrian access — usually the single biggest constraint.

• Privacy and overlooking: protecting the amenity of neighbours and the new home alike.

• Character: whether the proposal sits comfortably with the pattern and grain of the area.

• Trees, drainage and refuse: practical matters that often shape what is achievable.

Navigating objections and local politics

Backland schemes frequently attract objections. Engaging neighbours early, addressing concerns openly, and supporting the application with a thorough Design and Access Statement all improve your prospects. A pre-application discussion with the council can flush out the key issues before you commit to a full submission.

How Studio MASS can help

We have taken backland and infill projects through planning, including sites that first attracted objections. From feasibility to a fully argued application, book a free consultation: email info@studio-mass.com, call 0208 638 6727, or use the Talk to Us button above.

Last reviewed: July 2026. Planning law and policy change over time and vary between authorities — always confirm the current position with your local planning authority or the Planning Portal, and take professional advice on your specific project.

About the author

Robert McBride BSc(Hons) MFPWS is an architectural technologist and director of Studio MASS, a London practice specialising in residential extensions, conversions and new-build homes.