Backland Development
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Building in a large rear garden in Southwark

A home at the bottom of a Southwark 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 Southwark 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 Southwark
Postcodes
SE5, SE15, SE16, SE17, SE22
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
Local Plan
County
Greater London

How it plays out in Southwark

Overshadowing is often the deciding issue in a long garden. At midday on 21 March the sun in Southwark stands about 39° above the horizon, so a typical two-storey eaves line throws a shadow of roughly 6.3 m. In midwinter the noon sun is only about 15° up and shadows stretch around three times as far.

That’s why the gap between a new home and neighbouring gardens matters, and why a lower roof, or a home set further from the boundary, can make a scheme acceptable. We check the shadows on your actual plot rather than relying on rules of thumb.

Section showing noon sun and shadows in Southwark: about 39 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 39°, shadow 6.3 m21 Dec, noon: sun 15°, shadow 18.5 mExistingNew home
This section is worked out for the latitude of Southwark: around 39° 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 Southwark and a rough idea of what you’d like. We check the planning history around you and the policies the London Borough of Southwark 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. 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

  • Surveys and drawings cost money before any decision. On a subject-to-planning sale we normally fund them; on a build you do.
  • A shorter garden changes how your own house feels to live in and may affect what it is worth.
  • Neighbours are consulted and may object. The council decides, and a carefully designed scheme can still be refused.

Southwark: questions to ask

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

The London Borough of Southwark 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.

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

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.

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

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 I build a house in my back garden in Southwark?

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 the London Borough of Southwark makes the decision. A free appraisal will tell you whether your garden is worth taking further.

Other options in Southwark

Large rear gardens near Southwark

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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