Understanding your house survey
England & Wales · Last updated August 2026
The survey report arrives, it’s forty pages long, and half of it sounds alarming. Before you panic — or worse, skim it — it helps to know what a survey is for, what the ratings actually mean, and which findings genuinely change a purchase.
First: the lender’s valuation is not a survey
Your mortgage lender’s valuation checks that the property is worth what they’re lending against. It is for them, it may take minutes, and you often never see it. A survey is the inspection you commission for yourself, and it’s optional — which is why a large share of buyers, especially first-timers, skip it and meet the house’s problems after completion instead.
The three RICS levels
- Level 1 (Condition Report): a basic traffic-light overview, no detail. Rarely worth it for most buyers.
- Level 2 (Home Survey, formerly “HomeBuyer Report”): the standard choice for conventional homes in reasonable condition — visible defects, damp readings, ratings per element.
- Level 3 (Building Survey, formerly “full structural”): the thorough one — for older, extended, unconventional or visibly tired homes. Costs more; finds more.
Reading the traffic lights
Most reports rate each element 1 (fine), 2 (needs attention in due course) or 3 (serious or needing urgent attention). Two things stop panic here:
- Every older house has 2s. A 1970s house with ageing-but-working windows and an old-but-serviced boiler is described exactly that way. A page of 2s is a maintenance list for your first years, not a verdict.
- Surveyors write defensively. “Could not be inspected” and “further investigation recommended” appear throughout because the surveyor can’t lift carpets or open walls. These phrases flag limits of the inspection, not hidden catastrophes — though on big-ticket items (roof, drains, structure) they’re worth acting on before exchange, while you still can.
The findings that genuinely matter
- Structural movement — cracking that the report links to subsidence or ongoing movement.
- Damp with a cause — rising or penetrating damp, especially with timber decay nearby.
- Roof coverings near end of life — a re-roof is one of the priciest single jobs.
- Electrics flagged for testing — a full rewire is disruptive as well as expensive.
- Anything the report sends to a specialist — drains, trees near foundations, wall-tie corrosion.
What to do with a bad-looking report
- Get quotes, not estimates. Two or three real quotes for the flagged work turn fear into a number.
- Renegotiate with the evidence. A price reduction reflecting the quoted work — or the seller fixing it before exchange — are both normal outcomes. Sellers expect this conversation more than buyers think.
- Feed it to your solicitor. Survey findings often become enquiries: sign-off certificates for that extension, service history for the boiler, paperwork for past damp treatment.
- Know your walk-away line before you negotiate. Decided calmly, in advance, it protects you in both directions.