Choosing a survey level
Level 3 is described as the most detailed home survey. Why does that description still not mean the foundations were dug out and inspected?
The description still does not mean the foundations were dug out and inspected. Level 3 is the most detailed home survey, which means a closer visual look, more time and more reporting, not an excavation. The survey can record cracks, floors and the ground surface. It cannot see concrete that stays under the soil. No part of that description opens the footings unless the instruction separately says they were exposed, and this one does not.
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?
Buyers hear 'most detailed' and picture a trench beside the wall. The product is still a home survey. RICS sets out what the levels cover so the choice is informed, and that coverage is looking, measuring accessible parts and reporting, not breaking out foundations as standard. A longer report can discuss risk from what was seen above ground. Discussion is not the underside of the footing. If the text does not describe an opened foundation, none was inspected.
Read the Level 3 for the fabric it could see, and keep every foundation sentence inside those limits. Tell the solicitor the footings were not dug out. If a structural engineer must expose them, that is a new instruction with its own access. Do not tell a lender the base of the wall was inspected because the survey was the most detailed of the three.
What should you ask your surveyor?
- Does this Level 3 description still leave the foundations unexcavated?
- Which above-ground signs were actually recorded?
- Has the report avoided claiming the footings were inspected?
What are the typical next steps?
- Read Level 3 as a closer visual survey, not an excavation.
- Do not say the foundations were dug out.
- Commission an engineer only if the footings themselves must be exposed.
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 surveyor used a torch in a floor void, were the foundations seen?
A torch in a void shows the underfloor space that was open, such as joists or oversite. It does not dig out the foundations under the walls. Level 3 being detailed does not change that limit. The footings stay uninspected unless the report says they were exposed.
Does a recommendation to monitor count as inspecting the base?
No. A recommendation to monitor is a next step. It is not an inspection of foundations that were never dug out. The description of Level 3 still does not mean the concrete base was seen and judged. Monitoring is not exposure.