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Property boundaries in England and Wales can be checked online in minutes using HM Land Registry's published mapping — here's exactly how, and where the limits are.
In England and Wales, most registered titles are recorded with what HM Land Registry calls a general boundary. This means the red line on a title plan shows the approximate line of the boundary, not its precise legal position — deliberately, so that minor discrepancies with physical features on the ground don't need to be resolved before land can be registered. It's a practical system that keeps registration fast and affordable, but it also means two neighbours can each hold a title plan that looks slightly different from the fence actually standing between their properties.
A small number of titles do have a 'determined boundary', where the exact line has been fixed through a formal Land Registry procedure — usually because of a prior dispute. These are rare, and unless a property's register specifically mentions one, you should assume the boundary is general.
The polygons shown on Maplify and similar mapping tools come from HM Land Registry's INSPIRE Index Polygons dataset — a free, open dataset showing the extent of every registered title in England and Wales. It's an excellent way to quickly screen ownership and get an approximate boundary for due diligence, but it's a simplified, bulk-published dataset, not the definitive legal record.
The official title plan, ordered directly from HM Land Registry using the title number, is the current legal record referenced by the title register. For anything with legal or financial consequence — a boundary dispute, a mortgage, a sale — always order the official title plan and register rather than relying on the free polygon layer alone.
It's common for the mapped boundary to look different from the fence, hedge or wall on site — this doesn't automatically mean anything is wrong. Start by ordering the official title plan and comparing it carefully against the physical features, ideally with recent aerial imagery as well. If a genuine discrepancy or dispute exists, a chartered surveyor can provide an expert boundary opinion, and in more serious cases the matter may need to go through HM Land Registry's boundary dispute procedure or the courts.
Important limitations
Are Land Registry boundaries on a map legally binding?
No. They are general boundaries showing the approximate extent of a title, not a legally definitive line. Only the official title plan, read alongside the title register, carries legal weight — and even that shows a "general boundary" in most cases.
Why can't I see any boundary when I search my address?
You may not be zoomed in far enough — Land Registry data only displays from zoom level 17 upward. It's also possible the land is unregistered, in which case no polygon will exist.
How do I find out who owns a neighbouring property?
Use the title number shown on the map to purchase the official title register from HM Land Registry, which lists the registered proprietor.
Do I need a surveyor to resolve a boundary dispute?
In most cases yes — a chartered surveyor can interpret the title plan against the physical features on site and provide an expert opinion for legal purposes.
What is a "determined boundary"?
A boundary that has been fixed exactly through a formal HM Land Registry procedure, usually following a prior dispute. It's rare — most titles have a general boundary instead.
Can I order a title plan for any property?
Yes, if it's registered — anyone can purchase the title register and title plan from HM Land Registry for a small fee using the title number or address.
What if the land isn't registered at all?
Unregistered land won't show a polygon on Land Registry mapping. It still has an owner, but confirming ownership typically requires deeds research or a solicitor rather than an online map.
