Backland Development
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Building in a large rear garden in Lewes

A home at the bottom of a Lewes 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 South Downs National Park Authority 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
South Downs National Park Authority
Postcodes
BN7
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.1 m
Planning plan
Local Plan
County
East Sussex

What the council will look at in Lewes

Access is where many garden schemes succeed or fail, in Lewes as anywhere. A drive squeezed past the side of a house has to be wide enough for cars, give drivers a clear view as they pull out, and keep noise and headlights from bothering the people next door. A new or wider dropped kerb also needs the highway authority’s consent.

Homes in BN7 with a garage or a wide side passage often start ahead here. Where the gap is tight, a smaller home, a shared drive with a neighbour or access from a lane behind may still work. Because South Downs National Park Authority will look closely at the detail, we design the access before the house.

Section showing noon sun and shadows in Lewes: about 39 degrees on 21 March and 16 degrees on 21 December21 m21 Mar, noon: sun 39°, shadow 6.1 m21 Dec, noon: sun 16°, shadow 17.8 mExistingNew home
Noon sun in Lewes on 21 March sits about 39° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 6.1 m. In December the sun is only about 16° up and shadows stretch much further. Drawn for a garden facing north, where it matters most.

How we’d take it forward in Lewes

An enquiry about a Lewes garden can start with a short call and a few photos of the garden and the side of the house. A desktop check follows, then a site visit if it’s worth one. If you choose to sell, we agree heads of terms and your solicitor takes it from there. If you choose to build, we move on to a measured survey and design, and a written quote follows.

  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. Planning application

    We prepare the drawings and reports, usually take pre-application advice, and submit. The council consults neighbours and decides. Small schemes often take a few months from submission, longer if surveys or amendments are needed.

Worth checking early

  • A shorter garden changes how your own house feels to live in and may affect what it is worth.
  • Surveys and drawings cost money before any decision. On a subject-to-planning sale we normally fund them; on a build you do.
  • A covenant, a mortgage, a public sewer or a protected tree can slow a scheme down or stop it altogether.

Your questions, answered for Lewes

Can I sell the end of my garden in Lewes and keep my house?

Yes. The plot is sold as a transfer of part and gets its own title at HM Land Registry. If your house is mortgaged, your lender must agree to release the plot. We can buy suitable plots with or without planning, always subject to survey, title and contract.

Can I build a house in my back garden in Lewes?

Possibly, if the garden is deep enough, has a safe way in and a new home wouldn’t harm the neighbours or the character of the street. A new separate home always needs planning permission, and South Downs National Park Authority makes the decision. A free appraisal will tell you whether your garden is worth taking further.

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

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.

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

South Downs National Park Authority 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.

Other options in Lewes

Large rear gardens near Lewes

Find out what your garden could become

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

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