The Importance of Establishing Property Boundaries

Establishing clear property boundaries is fundamental in property law. Boundaries define the extent of land ownership, determining the rights and liabilities of property owners and occupiers. Unclear or disputed boundaries can lead to significant legal complications, including boundary disputes, trespass claims, and issues with land registration.

What Is a Property Boundary?

A property boundary is the dividing line between two contiguous parcels of land. Boundaries can be:

  • Physical: Marked by natural features (e.g., rivers) or artificial structures (e.g., walls, fences).
  • Legal: Defined in title documents, though often not with precise accuracy, and may not be visible on the ground.
  • Horizontal or Vertical: Boundaries can run along the ground or be defined vertically (e.g., in multi-storey buildings).
  • Agreed, Statutory, or Presumed: Boundaries may be set by agreement between landowners, by statute, or by legal presumption.

It is important to note that the physical boundary on the ground may not always align exactly with the legal boundary described in the title documents.

How Are Boundaries Established?

Title Deeds and Plans

The primary source for determining a boundary is the property’s title deeds. The “parcels clause” in a conveyance or transfer should describe the property clearly enough to establish its extent. Plans attached to deeds often assist in identifying boundaries, but their accuracy and scale can vary.

Key Points:

  • If a plan is marked “for identification purposes only,” the written description in the deed prevails.
  • If the description is unclear, the plan may be used to clarify the parties’ intentions.
  • Where both the plan and description are ambiguous or conflict, courts may consider extrinsic evidence to determine the true boundary.

Dealing with Errors and Conflicts

  • Erroneous Descriptions: If part of a property description is incorrect, the correct part can be relied upon (falsa demonstratio non nocet).
  • Conflicting Descriptions: Where multiple descriptions are unclear, courts will seek to ascertain the parties’ true intentions, sometimes admitting extrinsic evidence if the written documents are ambiguous.
  • Plan vs. Description: If there is a conflict, the context and wording in the deed determine which prevails. Recent case law (e.g., Dunlop v Romanoff [2023]) confirms that, generally, a plan will prevail if it “more particularly delineates” the land, unless extrinsic evidence strongly supports the written description.

Ordnance Survey Maps

Ordnance Survey (OS) maps are commonly used in property plans. The boundary line on an OS map typically marks the centre of a boundary feature (e.g., a hedge or wall). However, if the plan is only for identification, it may not define the precise legal boundary.

Special Marks:

  • “T” Marks: Indicate ownership or maintenance responsibility for a boundary feature.
  • “H” Marks: Indicate a party boundary (less commonly used and less persuasive).

The Role of Extrinsic Evidence

Generally, extrinsic evidence is not admissible to interpret a clear written contract. However, if the title deeds are ambiguous or conflicting, courts may admit extrinsic evidence to clarify the parties’ intentions. Such evidence may include:

  • Abstracts of title and other deeds
  • Auction particulars and estate agent details
  • Replies to pre-contract enquiries
  • Statutory declarations
  • Historical maps and photographs
  • Planning permissions
  • Witness statements and physical site evidence

The probative value of such evidence depends on the circumstances of each case.

Leading Case Law

Alan Wibberley Building Ltd v Insley [1999] UKHL 15

This case is the leading authority on interpreting parcels clauses in boundary disputes. Key principles include:

  • The starting point is always the deeds.
  • Plans attached to deeds are often for identification only and may not define precise boundaries.
  • Where exact boundaries are in question, courts may rely on topographical features and other evidence existing at the time of the deed.

Other Notable Cases

  • Eastwood v Ashton [1915] AC 900: Where a plan “more particularly delineates” the land, it may prevail over the written description.
  • Gillon v Baxter [2003] EWCA Civ 1591: Where a plan is unclear, courts may infer boundaries from physical features on the ground.
  • Cameron v Boggiano [2012] EWCA Civ 157: Small-scale or imprecise plans may be supplemented by topographical evidence.

Conclusion

Establishing and understanding property boundaries is essential for all property owners and occupiers. Clear boundaries prevent disputes, clarify rights and responsibilities, and ensure certainty in land transactions. Where boundaries are unclear or disputed, the courts will consider the deeds, plans, and, where necessary, extrinsic evidence to determine the true extent of the property.

For further information on resolving boundary disputes or interpreting title documents, please contact: james@naylorllp.co.uk

The information provided in these articles is for general guidance and informational purposes only. It does not constitute legal advice and should not be relied upon as such. While every effort has been made to ensure the accuracy of the content at the time of publication, laws and regulations may change. For advice specific to your circumstances, please consult a qualified legal professional. No liability is accepted for any loss or damage arising from reliance on the information contained herein.