The General Boundaries Rule

Why the red line on your title plan is approximate, and what that means in practice.

When you look at your Land Registry title plan, you will usually see your property outlined in red. Many people assume that red line is an exact, survey‑grade line showing the legal boundary down to the centimetre. It is not. In most cases in England and Wales, the Land Registry only shows general boundaries, not precise ones.

What is the General Boundaries Rule?

The General Boundaries Rule is the basic rule that the Land Registry uses when it shows the extent of a property on a title plan. In simple terms, it means:

  • the red edging on the title plan shows the general position of the boundary; and
  • it does not fix the exact legal line of the boundary on the ground.

So, if the red line runs along a fence, wall, hedge or ditch, the Land Registry is saying “the boundary is somewhere here”, not “the boundary is exactly along the centre of this fence panel” or “exactly 20cm to the left of this hedge”.

Where does the rule come from?

The rule is set out in section 60 of the Land Registration Act 2002. That section says, in legal language, that the boundary shown on the title plan is general only, unless it has been determined as an exact line. The Act allows the Land Registry to:

  • show the general position of the boundary; and
  • avoid having to show every boundary as a precisely surveyed line.

In practice, this means the Land Registry can rely on large‑scale Ordnance Survey mapping and historic deeds rather than carrying out a full, bespoke survey for each registered title.

Why does the General Boundaries Rule exist?

The rule exists for three main reasons:

  1. Practicality – It would be slow, expensive and unrealistic to survey every boundary line in England and Wales with precise measurements. Using general boundaries makes it possible to maintain a national register.
  2. Cost – If every title had to include exact boundary coordinates, the cost of registration and conveyancing would be much higher for homeowners.
  3. Flexibility – Physical features such as fences, hedges and banks move or are replaced over time. A general boundary allows for minor changes without constantly updating the register.

The trade‑off is that the Land Registry plan is a useful guide, but it is not the final word on the exact line of your boundary.

What does this mean in practice for homeowners?

For most day‑to‑day situations, the general boundary shown on the title plan is good enough. You can usually rely on it to see roughly where your land ends and your neighbour's land begins. But there are some important practical points to keep in mind:

  • The red line may sit slightly inside or outside a fence, wall or hedge shown on the plan because of how the underlying map was drawn.
  • If there is a small strip of land between a fence and a path, the title plan may not be clear enough to prove who owns that exact strip.
  • If you are planning major works near a boundary (for example, building an extension or a substantial new fence), you should not rely on the title plan alone if the position of the boundary is likely to be disputed.

Where the exact line matters, you may need to look at your original title deeds, any old plans, and sometimes commission a specialist surveyor or take legal advice.

General boundaries vs determined boundaries

A general boundary is the default position: the Land Registry shows the approximate area of your land, but does not say exactly where every boundary line falls on the ground.

A determined boundary is different. It is a boundary whose exact line has been formally fixed and recorded by the Land Registry following a specific application process. For a determined boundary, the Land Registry will:

  • approve a precise plan, usually based on a detailed survey, showing measurements and reference points; and
  • update the register to record that exact line as the legal boundary.

Determined boundaries are relatively rare and are usually only pursued where there is a real dispute or where certainty is particularly important (for example, for a development project). Most homeowners live with general boundaries without any problems.

Key takeaways

  • Your title plan normally shows general boundaries, not precise legal lines.
  • The General Boundaries Rule comes from section 60 of the Land Registration Act 2002.
  • The rule keeps the system practical, affordable and flexible, but it means the plan alone may not resolve fine‑grained boundary disputes.
  • A determined boundary is an exception where the exact line has been formally fixed and recorded; this is uncommon and usually only done where there is a clear need for certainty.