Backland Development
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Building in a large rear garden in Longfield

A home at the bottom of a Longfield 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 Dartford Borough Council 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
Dartford Borough Council
Postcodes
DA3
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
Local Plan
County
Kent

The local picture in Longfield

Look along your road and the roads behind it. If homes in Longfield or in Swanscombe, Gravesend and Dartford already stand behind the original houses, that shows the council the pattern exists locally, although it never makes a new permission certain. Where back gardens are unbroken, a first home behind the street faces closer scrutiny.

How much weight that carries is set out in the council’s Local Plan and in any design guide adopted by Dartford Borough Council. We read both before drawing anything, so your scheme answers the questions the planning officer is likely to ask.

Section showing noon sun and shadows in Longfield: 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 Longfield: 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.

How we’d take it forward in Longfield

An enquiry about a Longfield 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

  • 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.
  • A shorter garden changes how your own house feels to live in and may affect what it is worth.

Questions about garden plots in Longfield

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

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.

Does it cost anything to have my Longfield garden looked at?

No. The garden plot appraisal is free and carries no obligation. It starts with a desktop check and a conversation, and we arrange a site visit if your garden looks viable. You only commit to anything once you’ve chosen a route and seen the terms in writing.

Can I sell the end of my garden in Longfield 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.

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

Dartford Borough Council 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 Longfield

Large rear gardens near Longfield

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