How to Check Your Boundary

If you are worried about where your boundary lies – perhaps because a neighbour has put up a new fence, or you are planning an extension – it helps to follow a clear, calm process. Rushing straight into an argument rarely ends well. This page sets out a practical way to check a boundary and decide what to do next.

1. Start with the documents

Before going outside with a tape measure, gather the paperwork. Useful documents can include:

• your Land Registry title plan;
• the written title register for your property;
• any old deeds, conveyances or transfers you hold; and
• plans or documents given to you when you bought the property.

Old deeds and plans can sometimes show more detail about the original layout, such as measurements, references to particular trees, posts or ditches, or T marks showing who maintains a boundary. Even if the property is now registered, these older documents can still be very helpful when reading the title plan.

2. Compare the title plan to the ground

Next, look at the title plan and then walk around the property. Try to match what you see on the plan with what is on the ground:

• identify key features on the plan, such as buildings, roads and paths;
• find the same features on the ground so you know which way round the plan is;
• note how the red edging runs in relation to fences, walls, hedges and ditches.

Remember that the red line usually shows general boundaries only. At the scales used for title plans, the thickness of a line on the map can represent a significant distance on the ground. Do not assume that a small gap between a fence and the red edging proves that the fence is wrongly positioned.

3. Read the register alongside the plan

The title plan on its own rarely tells the whole story. Always read it together with the written title register. Pay particular attention to:

• any references to coloured areas, lines or symbols on the plan (for example, hatching or shading);
• entries about rights of way, rights to use shared drives or access strips, or rights to run services under neighbouring land; and
• entries referring to old deeds or transfers that are said to contain more detail about the boundaries.

If the register refers to another document, try to obtain a copy and read that too. It may include a more detailed plan or specific wording about how a boundary was intended to be laid out when the land was first divided.

4. Use supporting evidence such as historic maps

In tricky cases, additional evidence can help build a fuller picture. Useful sources can include:

• historic Ordnance Survey maps covering your area;
• aerial photographs (old and new);
• planning drawings or building control plans from past extensions; and
• photos or statements from previous owners or long‑standing neighbours.

This kind of evidence can show how boundaries and features have changed over time. For example, an old map may reveal that a hedge once ran in a slightly different position, or that a path was historically used in a particular way. On its own, this may not decide the issue, but it can support or challenge what the more recent documents and the current layout suggest.

5. When to involve a professional

If, after reviewing the documents and the physical layout, the position of the boundary still really matters – for example, because of building work, access or a serious disagreement – it may be sensible to involve a professional early.

There are two main types of professional who can help:

• Specialist surveyors – who can measure the site, review the documents and produce a detailed plan showing where they consider the legal boundary is most likely to be.
• Property lawyers – who can interpret the legal documents, advise on your rights and options, and help you communicate with your neighbour or, if necessary, with the court.

Getting clear, early advice is often far cheaper and less stressful than letting a boundary issue drag on or escalate into a major dispute.

6. Talking to your neighbour before things escalate

However strong you feel about the position of a boundary, your neighbour will still be living next door when the dust settles. A respectful conversation is almost always better than an angry letter.

Before you raise the issue, it can help to:

• think about what really matters to you – is it a few centimetres of land, or something bigger such as access or privacy?;
• gather your documents so you can explain your concerns calmly and clearly; and
• be open to the idea that the paperwork may support their understanding rather than yours.

When you do speak, try to focus on solving a shared problem rather than proving someone is wrong. You might, for example, agree to get a joint opinion from a surveyor, or to move or rebuild a fence in a way that both of you can accept, even if it is not perfect from a legal point of view.

Only if those discussions fail should you consider more formal steps such as mediation, legal proceedings or applications to the Land Registry. By that stage, it is wise to have professional advice so you understand the risks, costs and likely outcomes.

Key points to remember

• Start with the paperwork and the title plan, but always read the plan together with the register and any older deeds.
• Compare the plan to the ground with the General Boundaries Rule in mind – small differences on the plan do not automatically prove a fence is wrong.
• Use historic maps and other evidence where needed, and do not hesitate to consult a surveyor or lawyer if the issue is important.
• Talk to your neighbour early and calmly; a sensible agreement is usually better than a long‑running boundary battle.