Selling part of your garden for development: key legal considerations

Selling part of your garden for development can provide financial gain, fund downsizing or future goals, and unlock significant property value — particularly in areas where housing demand is high. For many homeowners, it offers a way to raise capital for retirement or help family members take their first steps on the property ladder.

Every case is different, and the right approach depends on your circumstances and objectives. If you are considering selling part of your land, contact our solicitors for tailored advice before you commit to any agreement.

Transfer of part

When you sell only part of your land, such as a section of your garden, this is dealt with by way of a transfer of part. This involves preparing plans to show the exact area being sold and registering the new ownership at the Land Registry.

The plan must be accurate and comply with Land Registry requirements, as it defines the legal boundaries of both your retained property and the land being sold. Any mistakes could lead to costly disputes in the future, so professional guidance is essential when preparing the plan.

Planning permission – sell with planning or subject to the buyer obtaining it

A key decision is whether to sell with planning permission already in place, or to sell the land subject to the buyer obtaining the necessary permission.

Selling with planning permission usually increases the value of the land, as the buyer has certainty that they can build and develop on the site. However, this approach involves time, cost, and the risk of refusal.

If you sell subject to the buyer obtaining planning permission, the buyer takes responsibility for the process. In this case, the contract will be conditional on planning permission being granted, meaning the sale only completes once permission is secured. Although this may result in a lower sale price, it avoids you taking on the planning risk.

Whether to sell with or without planning permission depends on whether you prefer a faster, simpler sale or to maximise value.

Boundaries, access, and services

Practical issues around boundaries, access, and services must be addressed carefully.

The transfer plan should clearly show where the new boundary will run. You may need new fences, hedges or walls to separate the plots.

Access is another key point. The new property may need a right of way over your retained land to reach the public highway, and this must be defined precisely in the transfer.

Finally, the developer will need access to essential services such as water, drainage, electricity, and possibly gas. Easements (legal rights) may be required over your retained land for these connections, along with agreements on maintenance and cost sharing.

Restrictions and covenants – controlling future development

Many sellers wish to retain control over what happens on the land after it has been sold. For example, you may be happy for one new home to be built, but wish to prevent future applications for multiple dwellings.

This can be achieved through restrictive covenants in the transfer. These are legally binding obligations on the buyer (and future owners) not to take certain actions, such as:

• Building more than one dwelling
• Erecting structures above a certain height
• Using the property for commercial purposes

Careful drafting at the outset will protect your property and preserve your enjoyment of the remaining land.

Mortgage lender’s consent

If your property is mortgaged, you will need your lender’s consent before completing the transfer. The lender has a legal charge over the whole property, including the section being sold.

Your solicitor will liaise with the lender, who may require part of the sale proceeds to be used to reduce the mortgage debt. This process can add time to the transaction, so it’s important to raise the issue early.

Expert advice on selling part of your garden

Selling part of your garden for development can unlock hidden value, but it’s a complex process. From planning permission and boundaries to covenants and lender consent, there are many legal and practical details to manage.

James Halpin, head of commercial property, explains:

“Selling part of your garden can unlock significant value, but it is rarely straightforward. Boundaries, planning, and access rights are where problems usually arise, and overlooking them can create disputes long after the sale. I always encourage clients to take advice early — it ensures the land is defined correctly, the right covenants are in place, and the process runs smoothly with lenders and buyers. Taking these steps at the start can make the difference between a profitable, stress-free sale and years of difficulty.”

Taking early professional advice ensures the land being sold is properly defined and registered, your access and privacy are protected, and the right covenants are in place to prevent future issues. It also avoids unnecessary delays where mortgage lender consent is needed.

If you’re considering selling part of your garden, our property solicitors can guide you through every stage to help you achieve a smooth, secure, and profitable sale.