Backland Development
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Building in a large rear garden in Barnet

A home at the bottom of a Barnet garden is backland development: building on land behind existing houses that has little or no street frontage of its own. It differs from infill, where a home fills a gap in the street, and it gets a closer look because of privacy and access.

That closer look is why a free appraisal comes first. We check depth, levels, trees, drainage and the title, sketch a realistic layout and explain what the London Borough of Barnet is likely to focus on. Then you decide whether to sell the land outright, sell it subject to planning, or have a new home built for you.

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Overhead view of three long, narrow back gardens with lawns, a greenhouse, vegetable beds and sheds
Planning authority
London Borough of Barnet
Postcodes
EN5, N3, N12, N20, NW4
Noon sun, 21 March
About 38°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
Local Plan
County
Greater London

Before you decide in Barnet

Wherever your home sits within EN5, N3, N12 and N20, the street around it shapes what’s possible. Some roads already have houses built behind the originals, while elsewhere the gardens stay unbroken from end to end. Councils read that pattern when judging a new home, so we look at your surroundings as well as your plot.

The same applies if you live just outside Barnet, in nearby places such as Brent, Haringey and Camden. The first step doesn’t change: a free look at depth, access, levels and what a new home would mean for the people next door.

Section showing noon sun and shadows in Barnet: about 38 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 38°, shadow 6.3 m21 Dec, noon: sun 15°, shadow 18.7 mExistingNew home
This section is worked out for the latitude of Barnet: around 38° of sun at midday in late March and about 15° at midwinter. It shows why the gap between your house and a new home behind it is about light as well as privacy. Garden assumed to face north.

The next steps, locally

Send us your address in Barnet and a rough idea of what you’d like. We check the planning history around you and the policies the London Borough of Barnet applies, and look for anything in the title that could get in the way. If the garden passes those checks, we arrange a visit at a time that suits you and explain each route in plain terms.

  1. Free plot appraisal

    We look at your garden using maps, the title plan and the planning history around you, then talk it through with you. If it looks workable we arrange a site visit. There’s no cost and no obligation.

  2. Measure and test the layout

    We check depth, the width of the way in, levels, trees, drains and what lies behind, then sketch what could realistically fit: one home, two, or nothing worth pursuing, before anyone pays for an application.

  3. Choose your route

    You decide whether to sell the plot outright, sell subject to planning, grant an option, team up with neighbours, or keep the land and have us design, get planning for and build a home on it.

  4. Sale or build

    If you sell, your solicitor handles the transfer of part and your lender’s release of the plot. If you build, we give a written quote after design and survey, then build and hand over the new home.

Worth checking early

  • Neighbours are consulted and may object. The council decides, and a carefully designed scheme can still be refused.
  • Cars passing beside your house to reach the new home bring noise and headlights; screening helps but doesn’t remove it.
  • Surveys and drawings cost money before any decision. On a subject-to-planning sale we normally fund them; on a build you do.

Your questions, answered for Barnet

How do I find out if my Barnet garden is big enough for a house?

Ask for a free garden plot appraisal. We measure depth and the width of the way in, check what lies behind, look at levels, trees and drainage, and compare your garden with your council’s separation and garden-size guidance. Size alone rarely settles it, because access and neighbours’ privacy matter just as much.

Who decides planning for a home in a Barnet back garden?

The London Borough of Barnet decides, using the council’s Local Plan, national policy and any local design guidance. It consults neighbours and other bodies before reaching a decision. We prepare the application and deal with the planning officer, but the outcome is always the council’s call.

How long does planning take for a garden home in Barnet?

It varies. Small schemes often take a few months from submission to decision, and longer if surveys, amendments or extra consultation are needed. Pre-application advice and early surveys add time at the start but can save time later. We won’t promise a date, because the council sets the pace.

Can you build a home for my family in my garden in Barnet?

Yes. If you keep the land, we can design the home, apply for planning permission, build it once permission is granted and arrange the structural warranty lenders usually expect. You receive a written quote after design and survey. If the home is for a relative who will share your kitchen and front door, an annexe may suit better.

Other options in Barnet

Large rear gardens near Barnet

Find out what your garden could become

Free garden plot appraisal. No cost, no obligation, and a straight answer if it won’t work.

Get my free appraisal 0800 088 6248