A structural survey (sometimes called a 'full building survey' or 'Level 3 survey') is the most detailed inspection of a property's physical condition. It's carried out by a chartered structural engineer or surveyor.
What's Covered
- Foundations — visible signs of movement, cracking patterns, subsidence risk
- Walls — structural adequacy, damp, bulging, cracking, mortar condition
- Floors — deflection, damp, rot, adequacy for intended loads
- Roof structure — timber condition, spread, sagging, adequacy for conversion
- Drainage — visible defects, proximity to foundations
When Do You Need One?
- Buying a period property (pre-1930)
- Planning major renovation or extension work
- Visible cracking, movement, or structural distress
- Lender or insurer requires a structural report
A structural survey differs from a RICS Homebuyer's Report (Level 2) in depth and detail. If you're planning building work, the structural survey gives your engineer the information they need to design safely.
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