How to sell part of your garden for development

Can you sell part of your garden?

Yes, you can sell part of your garden as a separate plot while keeping your house, as long as you own the land, your lender agrees if there is a mortgage, and nothing on your title prevents it. Legally, it is a transfer of part: a slice of your registered title is carved off and given a title of its own.

Whether anyone will pay a good sum for it is a separate question. That depends mostly on whether a new home could realistically get planning permission there, which in turn depends on size, access, the character of the area and the effect on neighbours. A plot with no realistic prospect of planning is usually worth little more than extra garden to a neighbour.

What are the main ways to sell a garden plot?

The main ways are an outright sale, a sale subject to planning, an option agreement, planning promotion, a joint venture, or combining gardens with neighbours. They differ in who carries the planning risk, how soon you are paid and how much certainty you have on price.

• Outright sale without planning: quickest and simplest, but the buyer prices in the planning risk, so the price reflects it.
• Outright sale with planning: you obtain permission first, then sell a plot with a known consent; you carry the planning cost and risk.
• Sale subject to planning: price or price formula agreed now; the buyer applies, and completes only if permission is granted. If it is refused, you keep your land.
• Option agreement: the buyer pays for an exclusive right to buy within an agreed period once planning is secured.
• Planning promotion: a promoter gets permission at its own cost and the plot is then sold, with costs and a fee taken from the proceeds.
• Joint venture or combined gardens: you share in the outcome rather than taking a single price, often alongside neighbours.

What decides how much a garden plot sells for?

A garden plot sells for what a buyer can afford to pay after allowing for the value of the finished home, the cost of building it, the risks and a fair return. That is why two gardens of the same size can be worth very different amounts.

The main factors are planning status, the number and size of homes that could be approved, the quality of the access, the location and what new homes sell for there, the build costs, and any abnormal costs such as long drainage runs, difficult ground or tree work. Covenants, ransom strips and the need for a lender’s release can also affect value.

Your own house matters too. Selling the garden changes the house you keep, with a smaller garden and a new neighbour, and some buyers will value it differently later. A sensible decision weighs the plot money against any change in your home’s value, so ask an independent valuer to look at both. Our guide to what decides a garden plot’s value explains the calculation in more detail.

What happens step by step when you sell a garden plot?

Selling a garden plot usually follows the same sequence whichever route you choose, although options and conditional contracts add a waiting period while planning is pursued.

• Appraisal: check the title, planning history, access and services, and get a view on likely value.
• Heads of terms: a short, non-binding summary of price, conditions, timing, who pays which costs, and the protections you want.
• Instruct solicitors: each side has its own. Your solicitor checks the title and raises the lender’s consent early.
• Plan the boundary: a plan accurate enough for HM Land Registry, showing exactly what is sold and any access route.
• Contract: exchange of contracts, which may be unconditional, conditional on planning, or an option.
• Completion: the buyer pays, the transfer is signed, and the lender releases the plot from its charge.
• Registration: the buyer’s solicitor registers the transfer and HM Land Registry creates a new title for the plot.

What does your solicitor do on a transfer of part?

Your solicitor prepares or approves the transfer of part, agrees the plan, deals with your lender, and drafts the rights and covenants that will govern the plot and your house from then on. The form used at HM Land Registry is a TP1, the form for transferring part of a registered title.

The plan is more important than it looks. HM Land Registry guidance says transfers of part usually need a plan showing the land being transferred, drawn accurately to a stated scale. Measure fences and walls on site, because an old fence line is not always where the legal boundary is.

If your house is mortgaged, the lender must agree to release the plot from its charge. HM Land Registry’s form for releasing part of the land in a title is a DS3, with the released land shown on a plan or by reference to the title plan. Lenders can take weeks to respond, so this should be started early.

The transfer will also need to deal with rights. The buyer usually needs a right of way over any shared drive and rights to run services. You may need rights in return, for example to maintain a boundary wall or keep pipes that cross the plot.

How can covenants protect you after the sale?

Covenants in the transfer let you control what is built next to your home after you have sold the land. They are your main protection, and they need to be agreed in the heads of terms, before contracts are drafted.

Common protections include limiting the plot to one dwelling, controlling the height or number of storeys, banning windows facing your house, requiring a new boundary fence or wall before work starts, requiring the buyer to maintain the shared drive, and restricting building hours or deliveries during construction. A covenant requiring the development to follow the approved plans also stops a buyer seeking a bigger scheme later.

For example, a seller might agree to sell the bottom of a long garden subject to planning, on terms that the plot is limited to one single-storey home, the buyer must build a solid close-boarded fence along the new boundary before starting work, and no first-floor windows may face the existing house. Each of those terms would be written into the transfer.

Be realistic. Restrictive covenants are usually enforceable against later owners, but positive obligations, such as maintaining a fence, generally need extra drafting, such as a chain of covenants, to bind future buyers. Ask your solicitor how each protection will be enforced.

What is overage and should you ask for it?

Overage is a promise by the buyer to pay you an extra sum if the plot later becomes more valuable than the deal assumed, typically because permission is granted for more homes or larger homes than planned. It lets you share in value you have not been paid for.

It suits outright sales where planning has not been settled, or where a bigger scheme might be possible later. It is less relevant on a sale subject to planning, because the price is already tied to the permission. The trigger, the period, how the extra value is calculated, and how it is secured all need careful drafting.

A bare promise to pay is weak. HM Land Registry guidance notes that a purely contractual arrangement to pay someone a share of sale proceeds cannot be protected by a notice on the register, so solicitors usually secure overage with a restriction or a legal charge on the plot’s title.

What about tax when you sell part of your garden?

Tax depends on the facts, so take advice from a tax adviser before you agree a deal. The general position is that Private Residence Relief can cover part of a garden sold while you still own and live in the house, within a permitted area, which HMRC’s helpsheet says is generally up to half a hectare including the house.

The timing matters. HMRC’s guidance says relief is not available if you dispose of all or part of your garden after you have disposed of your home, and land that has been fenced or divided off for development may not qualify. Developing and selling a home yourself can change the position again.

Where Capital Gains Tax is due on UK residential property, GOV.UK says it must be reported and paid within 60 days of completion. The buyer pays Stamp Duty Land Tax in England or Land Transaction Tax in Wales on the purchase, not you.

How long does it take to sell a garden plot?

An outright sale of a plot with a clean title and no planning condition often completes in a few months, while sales that depend on planning usually take longer. The main drivers are the lender’s release, title problems, the length of the planning process and any appeal.

Sales subject to planning and options run for an agreed period, and the contract should say what happens if planning is still being pursued when that period ends. If you have a date by which you need the money, say so at heads of terms stage so the route and timetable can be chosen to fit.