Subsidence, settlement and heave
A freestanding garden wall has a cracked pier and the house ten metres away is plumb. Which structure is the crack about?
The crack is about the freestanding garden wall, not the house. A pier in that wall is cracked, and the house ten metres away is plumb. Distance and a plumb house mean the pier crack has not been carried across to the dwelling. The survey has described the garden structure. It has not diagnosed foundation movement in the house from a crack in a wall that does not hold the house up.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
Freestanding garden walls crack at piers because the pier is a stiff point, the foundation of the wall is often shallow, and the wall is not tied into the house. None of that makes the house move. A plumb house is the observation that matters here: the dwelling was not out of upright. The survey did not monitor the pier and did not dig its footing. It also did not need to condemn the house in order to record a cracked garden pier.
Ask a bricklayer or a garden-wall contractor about the pier if you want it repaired, and keep the work on the garden wall. Tell the solicitor the house was plumb and is not the structure in this note. Do not open a subsidence conversation about the dwelling on the strength of a freestanding pier. If the house has its own cracks, they will be in their own sentences.
What should you ask your surveyor?
- Is the cracked pier in the freestanding garden wall?
- Was the house plumb, and kept out of this crack?
- Have you left the house foundations unblamed?
What are the typical next steps?
- Attribute the crack to the garden wall pier.
- Do not treat the plumb house as part of that crack.
- Ask a contractor about the pier only if you want the garden wall repaired.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
If the pier leans, has the house footing failed?
A lean in a garden pier is still the garden wall. The house was plumb. The survey has not transferred that lean to the dwelling, and it has not inspected the house footing because of this pier. The dwelling stayed a separate structure.
Does a shared fence line make it one structure?
No. A fence line is a boundary, not a structural tie. The cracked pier is the freestanding wall. The house ten metres away was plumb, and the survey has not joined the two into one defect. Distance does not make them one wall.