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RICS Building Survey

Level 3 Building Survey

Our most comprehensive RICS survey — a detailed inspection of the property's fabric and structure. For older, larger, listed, altered, unusual or run-down homes, with each defect explained: cause, consequence and how to put it right.

Older character property suited to a Level 3 Building Survey
What it is

The most comprehensive RICS survey

The Level 3 Building Survey — sometimes called a full structural survey — is the deepest inspection we offer.

Where a Level 2 gives you traffic-light ratings, a Level 3 goes much further: a thorough examination of the construction and condition of the property, defect by defect. For each issue we found, we explain not just what it is, but what's likely causing it, what could happen if it's left, and what's involved in putting it right. It's the survey to choose when a home is older, larger or out of the ordinary — and when you want to understand exactly what you're taking on before you commit.

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RICS surveyor carrying out a detailed Level 3 building inspection
Full
structural detail
What's included

A detailed picture of the whole building

A comprehensive report by a RICS or RPSA regulated surveyor that leaves you in no doubt about the property's condition.

  • A detailed inspection of the building's fabric and structure
  • Each defect explained with its likely cause, the consequence of leaving it, and remedial advice
  • Roof voids, cellars and sub-floor spaces examined where safely accessible
  • An assessment of damp, movement, timber decay and previous alterations
  • Outline repair priorities so you know what's urgent and what can wait
  • Plain-English guidance to support your decision and any renegotiation

A Level 3 is more thorough than a Level 2 but is still primarily a visual survey — it does not normally involve opening up the structure unless separately agreed.

Structural detail being inspected during a Level 3 survey
5–7
day report
Good to know

Level 3 survey questions, answered

When do I need a Level 3 survey?

Choose a Level 3 when the property is older (typically pre-1930), larger, listed, of non-standard construction, heavily altered, or visibly in poor condition — or when you plan to renovate or extend. For modern homes in good order, a Level 2 is usually enough.

Does it include repair costs and timescales?

A Level 3 sets out outline repair priorities so you can see what's urgent and what can wait. It isn't a costed schedule of works, but it gives you a clear basis for getting builders' quotes and for renegotiating the price if needed. We can also arrange budget cost estimates on request.

Will the surveyor open up walls or floors?

A Level 3 is more thorough than a Level 2 but is still mainly a visual inspection. We examine roof voids, cellars and sub-floors where safely accessible. We don't normally open up the structure or lift fixed coverings unless that's separately agreed in advance.

How long does a Level 3 survey take?

The inspection takes longer than a Level 2 — often half a day on a larger property — and we return your full written report within 5–7 working days of the visit.

Buying an older or unusual home?

Get a free, no-obligation Level 3 quote in minutes — and buy with your eyes open.

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