Backland Development
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Sell part of your garden in Sunbury-on-Thames

Some gardens in Sunbury-on-Thames are long enough to hold a second home behind the first, and some side gardens are wide enough to hold one beside it. Either can be sold on its own while you stay put. The sale doesn’t need planning permission in place, and you don’t need to clear, fence or build anything first.

What it does need is a clear route in. A shared or new drive has to work for cars, deliveries and bin collections, and the new home will need fire engine access (or other measures, often sprinklers, agreed with building control and the fire service where a fire engine can’t get close enough). If the only way in crosses land you don’t own, a ransom strip can change the deal entirely, so we check who owns the access before anything else.

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Long back garden with a string line and marker pegs across the lawn showing where a plot could be split off
Planning authority
Spelthorne Borough Council
Postcodes
TW16, TW17
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
Local Plan
County
Surrey

The local picture in Sunbury-on-Thames

Light is often the deciding issue on a garden plot. At midday on 21 March the sun in Sunbury-on-Thames stands about 39° above the horizon, so a typical two-storey eaves line casts a shadow of roughly 6.3 m across the ground behind it. By late December, with the sun only around 15° up, those shadows stretch much further.

That’s why the gap between your house and any new home matters so much to Spelthorne Borough Council, and why a single-storey or dormer design sometimes succeeds where a full two storeys wouldn’t. We test the shadows before we offer, because they affect what the plot can hold.

Section showing noon sun and shadows in Sunbury-on-Thames: 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
Noon sun in Sunbury-on-Thames on 21 March sits about 39° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 6.3 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.

How we’d take it forward in Sunbury-on-Thames

Here is what happens if you contact us about a garden in Sunbury-on-Thames. We ask a few questions about the house, the garden and any mortgage. We run the desk checks and call back with a view, good or bad. If it’s good, we visit and make a written offer to buy the plot outright. If you accept, heads of terms set out the price, the boundary and who pays what before solicitors start.

  1. Free plot appraisal

    Tell us about your garden. We check the title plan, access, local policy and planning history from our desk, then talk it through with you. If it looks viable, we arrange a site visit, with no cost and no obligation.

  2. Written offer and heads of terms

    We put our offer in writing, subject to survey, title and contract. Heads of terms then record the plot boundary, the price, access rights, who pays which costs and the rough timetable for each stage.

  3. Exchange and completion

    Once both sides are satisfied, contracts are exchanged and a completion date is fixed. On completion the money passes through the solicitors and HM Land Registry registers the plot under a new title of its own.

  4. After the sale

    Any boundary fence or access works agreed in the transfer are carried out as set out. If the plot still needs planning, we apply as the new owner, and you can see and comment on the plans like any other neighbour.

Worth checking early

  • Lender consent, old covenants or access disputes can slow a sale, and occasionally stop it.
  • A sale without planning is priced for the planning risk we take on, so it usually pays less than the same plot with permission.
  • Your house keeps a smaller garden, which some future buyers will welcome and others won’t.

Your questions, answered for Sunbury-on-Thames

Can I sell the plot and keep living in my Sunbury-on-Thames house?

Yes, that’s the whole point of a plot sale. You keep the house and the rest of the garden, and the boundary is drawn where you agree. The transfer can include rights and covenants that protect your home, such as who builds the new fence and limits on windows facing your property.

Do you buy garden plots in Walton-on-Thames, Ashford and Weybridge as well as Sunbury-on-Thames?

Yes. We cover England and Wales, including the places around Sunbury-on-Thames. The process is the same wherever your garden is, although planning policies depend on the council for your address, so our desk check always starts by finding out which one that is.

Do I pay Stamp Duty Land Tax (SDLT) when I sell a garden plot in Sunbury-on-Thames?

No. Stamp Duty Land Tax (SDLT) falls on the buyer of land, so on a sale to us any amount due is ours to pay. What may affect you as the seller is Capital Gains Tax, depending on your circumstances and whether you still live in the house. Take advice from a tax adviser before you agree a deal.

Can I sell part of my garden in Sunbury-on-Thames without planning permission?

Yes. We buy suitable plots with or without planning, subject to survey, title and contract. Without permission, we take on the risk that Spelthorne Borough Council refuses an application, and our offer allows for that. If you’d rather sell only once permission is granted, a sale subject to planning is the alternative.

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