Which House Survey Do You Need? Level 1, 2 and 3 Explained

A mortgage valuation is not your condition survey

A lender's valuation helps the lender assess its security and the loan. It is not designed to identify every repair, construction defect or maintenance issue important to a buyer. A separate survey can help you make an informed decision about the condition and risks before exchanging contracts.

Do not assume that an online automated valuation or a lender assessment includes a thorough inspection. Ask what the surveyor will and will not inspect, and whether specialist investigations are likely to be needed.

Level 1: a basic condition assessment

A Level 1 survey is generally intended for straightforward properties in comparatively good condition where a detailed investigation is not needed. It gives a basic overview of visible condition but typically has a more limited depth of commentary than higher levels.

If a property is older, substantially altered, has visible defects or has unusual construction, consider whether a more detailed service is appropriate rather than choosing Level 1 solely to minimise the initial fee.

RICS says Level 1 is a concise visual condition overview. The service is less suited to properties with known issues or unusual construction; check the surveyor's exact scope and exclusions before instruction.

Level 2: more detailed condition guidance

A Level 2 survey is often suitable for conventional properties in reasonable condition. It highlights visible defects and areas needing attention but is generally less extensive than a Level 3 survey. Surveyors do not normally lift floorboards or open up concealed structure without a separately agreed service.

Ask what happens if the report identifies potential damp, movement or roof defects. Additional specialist inspections may be advisable before an unconditional purchase decision.

RICS Level 2 can provide repair and maintenance guidance, but extensive concealed elements are not opened up by a standard inspection. Level 2 plus valuation is a distinct product: ask whether a market valuation is included.

Level 3: more complex or older properties

A Level 3 survey is intended for situations where more detailed examination and advice about condition, defects and repairs is warranted, such as older, larger, altered or unusual properties. Even this is not a guarantee that every hidden defect will be found.

Choose an appropriately experienced surveyor for the building, not merely a report label. For major concerns, ask for an explanation, realistic repair prioritisation and whether a structural engineer or other specialist is needed.

RICS Level 3 provides more detailed advice on defects and repair options but remains primarily an inspection of accessible areas. It is not an invasive structural investigation and does not guarantee that hidden defects will be discovered.