Note: This blog is not an authoritative interpretation of the law; it is intended as a general guide.
Boundary walls are a common feature between neighbouring properties, but they often give rise to questions, and disagreements, about ownership, rights, and responsibilities. One of the most frequent concerns homeowners raise is whether a neighbour is allowed to attach anything to a shared boundary wall.
While it may seem like a simple issue, the answer depends on a combination of property law, the Party Wall etc. Act 1996, and practical considerations around ownership and consent. In this guide, Icon Surveyors help you understand your rights and responsibilities, and the best steps to take to avoid unnecessary conflict.
What is a Boundary Wall?
A boundary wall is usually a masonry wall that stands astride the boundary line between two properties. This differs from a ‘Party Wall’, which is usually a garden wall that’s built on the boundary line and separates the land between each of the owners. Wooden fences and hedges are not usually considered to be boundary walls.
Who Has a Right to Interfere with a Boundary Wall?
Generally speaking, each landowner shares or owns 50% of the wall, as it usually sits on the boundary line. Under the Party Wall Etc Act 1996, a landowner is within their rights to repair or demolish and rebuild a boundary wall, but it can’t be done unless the other landowner agrees to the proposed works.
If an agreement can’t be reached, under the provisions of the Act, the neighbours will be considered in dispute, and a surveyor will need to be appointed to draw up a workable agreement between both parties.
However, if the boundary wall is considered a hazard and poses a safety risk to anyone who has access to the land, a building owner can repair or rebuild the wall without prior consent.
Can Either Landowner Attach Anything to the Boundary Wall?
The short answer is no. Permission is the key – since the wall might be jointly ‘owned’ (or each side equal interest), it’s advisable to seek your neighbour’s consent before you attach anything, and in the case of repairs or rebuilding the wall. Attaching anything to the wall runs the risk of damage to the masonry or the structural integrity of the wall, which could affect both sides. If this occurs, there could be a claim for compensation.
If one of the landowners wants to attach some ornaments or hanging baskets to their side of the wall, this may be permissible as long as these attachments don’t interfere with the other party’s side of the wall. However, generally speaking, any interference with the other owners’ part of the boundary wall should be considered non-permissible and could even result in a conviction for criminal damage in extreme cases.
Practical Advice for Avoiding Disputes
- Talk First: Before attaching anything, have a polite conversation with your neighbour. Explain what you intend to do, how you’ll fix your attachment, and what (if any) load it places on the wall.
- Put It in Writing: After discussing, send a simple letter or email summarising what you agreed. If there’s any risk of damage, explain how you’ll minimise it, such as using appropriate fixings or avoiding through-wall bolts.
- Record the State of the Wall: Take photos (or even commission a “schedule of condition”) before any attachments, so there’s a record in case of future damage.
- Be Prepared to Remove: If your neighbour consents, set a condition that whatever you attach can be removed (by you, at your cost) if needed — especially if the wall later needs to be repaired or rebuilt.
Icon Surveyors are happy to provide a free consultation to any building or adjoining owners who may be affected by the subject matter raised in this blog. Get in touch with us to receive a quote.
