Backland Development
0800 088 6248Free to call Free plot appraisal

Building in a large rear garden in Welwyn Garden City

If your back garden in Welwyn Garden City runs well past the patio and the lawn you actually use, the far end might be a building plot. Whether it is depends on four things: depth, a safe way in, what sits around it, and how a new home would affect the neighbours.

Backland Development looks at gardens like yours for free. If it looks workable, you can sell the plot and keep living in your house, or keep the land and have us design, get planning for and build a new home there. We’re a new brand within the S&K Group, and we’ll tell you straight if your garden isn’t a plot.

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Overhead view of three long, narrow back gardens with lawns, a greenhouse, vegetable beds and sheds
Planning authority
Welwyn Hatfield Borough Council
Postcodes
AL6, AL7, AL8
Noon sun, 21 March
About 38°
Shadow from a 5 m eaves line
About 6.4 m
Planning plan
Local Plan
County
Hertfordshire

How it plays out in Welwyn Garden City

Look along your road and the roads behind it. If homes in Welwyn Garden City or in Hatfield, Hertford and St Albans 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 Welwyn Hatfield 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 Welwyn Garden City: about 38 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 38°, shadow 6.4 m21 Dec, noon: sun 15°, shadow 19.0 mExistingNew home
Noon sun in Welwyn Garden City on 21 March sits about 38° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 6.4 m. In December the sun is only about 15° up and shadows stretch much further. Drawn for a garden facing north, where it matters most.

From first call to decision

Here’s what happens after you get in touch about a garden in Welwyn Garden City. We look at maps, the title plan and nearby planning history, then call you to talk it through. If the plot looks viable we visit, measure up and check access, levels and trees. You then get a plain summary of what could fit and the routes open to you, with no obligation to take any of them.

  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

  • A shorter garden changes how your own house feels to live in and may affect what it is worth.
  • Cars passing beside your house to reach the new home bring noise and headlights; screening helps but doesn’t remove it.
  • A covenant, a mortgage, a public sewer or a protected tree can slow a scheme down or stop it altogether.

Your questions, answered for Welwyn Garden City

Who decides planning for a home in a Welwyn Garden City back garden?

Welwyn Hatfield 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.

How long does planning take for a garden home in Welwyn Garden City?

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.

How do I find out if my Welwyn Garden City 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.

Can I build a house in my back garden in Welwyn Garden City?

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 Welwyn Hatfield Borough Council makes the decision. A free appraisal will tell you whether your garden is worth taking further.

Other options in Welwyn Garden City

Large rear gardens near Welwyn Garden City

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