You've just received your RICS survey report — a 30- to 60-page document packed with condition ratings, technical jargon, and caveats. Most buyers skim it, misread the colour coding, and either panic unnecessarily or miss something genuinely serious. Here's exactly how to interpret every finding and what to do next.
The Traffic-Light Rating System Explained
RICS Level 2 (HomeBuyer Report) and Level 3 (Building Survey) both use a three-tier condition rating system. Understanding it is the single most important thing you can do before acting on the report.
Condition Rating 1 — Green
No repair is currently needed. The property element is performing as expected and no action is required beyond normal maintenance. This does not mean the element is new or perfect — it means it's functioning within acceptable parameters.
Condition Rating 2 — Amber
Defects that need repairing or replacing, but are not considered serious or urgent. These require attention to prevent deterioration. Examples: minor roof slippage, pointing that needs refreshing, some areas of timber that need treatment, guttering with minor blockages.
Important myth to bust: Condition 2 does not mean "it's fine." Left untreated, many Condition 2 items become Condition 3 items within a few years. Add them to your maintenance list and budget accordingly.
Condition Rating 3 — Red
Defects that are serious and/or need to be repaired, replaced, or investigated urgently. These require immediate attention and significant expenditure. Condition 3 findings are the ones that should inform your negotiating position and potentially your decision to proceed.
NI — Not Inspected
The surveyor was unable to access or inspect the element (e.g., the loft was inaccessible, underfloor space was sealed). These are important — they are not clearances. If a significant structural area is listed as NI, consider commissioning a specialist inspection before exchange.
What Each Section of the Report Covers
Roof
Surveyors inspect the roof covering (tiles, slates, flat felt), flashings, guttering, and — where accessible — the roof structure internally. They look for slipped or missing tiles, sagging ridge lines, defective flashings at chimneys and valleys, blocked gutters, and signs of water ingress in the roof space.
What to watch for: Any Condition 3 on the roof should be taken seriously. Roof work is expensive (£5,000–£12,000 for a full re-roof on a 3-bed semi) and water ingress causes cascading damage to ceilings, timbers, and electrics.
Structure
This covers the main walls, foundations, floors, and chimney stacks. Surveyors look for cracking patterns, bulging, settlement, subsidence, and bowing. Diagonal cracks above windows and doors at 45° often indicate differential settlement. Long horizontal cracks can indicate wall tie failure in cavity walls.
What to watch for: Any mention of "monitor," "structural engineer recommended," or "underpinning" should be followed up immediately with a structural engineer before you proceed.
Services
Gas, electricity, water, and heating installations. Surveyors do not test services in detail — they perform a visual inspection only. They look for evidence of age, condition, and obvious defects. An old fuse board, unsleeved wiring, or a boiler beyond its expected service life will be noted.
What to watch for: A Condition 3 on electrics typically means the installation hasn't been tested (EICR). Commission an Electrical Installation Condition Report (£150–£300) before exchange. A full rewire costs £4,000–£10,000 — that's negotiating leverage.
Drainage
Includes surface water drainage, foul drainage, and inspection chambers. Surveyors look for visible defects but will recommend a full CCTV drain survey if there are concerns. Roots, collapsed sections, or misaligned joints are common in properties over 40 years old.
What to watch for: A CCTV drain survey costs £150–£300 and can save you from a nasty surprise. Drain relining or replacement can run to £3,000–£10,000+.
Grounds and Boundaries
Gardens, outbuildings, paths, retaining walls, and boundary features. Surveyors look for Japanese knotweed (a significant issue — mortgage lenders can refuse to lend if it's present), structural retaining walls in poor condition, and ground movement near the property.
How to Prioritise Condition 3 Findings
Not all Condition 3 items are equal. Work through them using this hierarchy:
- Structural integrity — anything affecting the building's ability to stand safely (foundations, walls, roof structure)
- Water ingress — active water entry accelerates damage exponentially
- Services safety — defective electrics or gas installations are a safety hazard, not just a cost
- Mandatory compliance — items that need to be resolved to satisfy a mortgage lender
- Significant future expenditure — items that are currently borderline but will need addressing within 2–3 years
List each Condition 3 item, get a quote from a specialist contractor, then total the remediation cost. This is your renegotiation basis.
When to Commission Specialist Reports
Your surveyor may recommend specialist investigations. Take these seriously — they are not passed on lightly. Common recommendations:
| Specialist | When Recommended | Typical Cost |
|---|---|---|
| Structural engineer | Cracking, suspected subsidence, wall tie failure | £300–£600 |
| CCTV drain survey | Old drainage, evidence of problems | £150–£300 |
| EICR (electrical) | Old installation, fuse box pre-2000 | £150–£300 |
| Gas Safe inspection | Old boiler, evidence of leaks | £80–£150 |
| Damp specialist | Rising or penetrating damp found | £150–£300 |
| Japanese knotweed survey | Suspected knotweed on site | £200–£500 |
| Asbestos survey | Pre-1985 property, disturbed textured coatings | £200–£400 |
Always use independent specialists, not ones recommended by the vendor's estate agent.
Using Survey Findings to Renegotiate: A Worked Example
Scenario: You've agreed a purchase price of £240,000. The RICS Level 2 survey returns three Condition 3 items and four Condition 2 items.
Condition 3 findings:
- Roof requires partial re-tiling and new flashings: contractor quote £3,500
- Electrical installation requires full EICR and likely partial rewire: estimated £2,500
- Evidence of rising damp in the rear reception room, specialist treatment required: estimated £2,000
Total Condition 3 remediation cost: £8,000
How to structure the renegotiation:
- Obtain written quotes for all three items before approaching the seller
- Write to the seller's solicitor (via your own solicitor) itemising each defect with supporting quotes
- Request a reduction of £6,000–£8,000 — the full remediation cost is a fair opening ask
- Frame it factually, not emotionally: "The survey has identified £8,000 of remedial works that were not disclosed prior to agreeing the price."
- Accept a counter-offer in the range of £4,000–£6,000 as a reasonable outcome, or ask the seller to carry out specific works before exchange
Note: On a first-time buyer purchase, if the seller refuses any reduction, you are entitled to simply withdraw. The cost of an overpriced, problem-ridden property compounds for years.
When to Walk Away
Some findings warrant withdrawal regardless of price. These include:
- Active subsidence with no completed underpinning and insurance
- Japanese knotweed without a professional management plan accepted by a lender
- Structural failure where remediation cost is disproportionate to the property value
- Listed building defects where repair requires specialist consent and materials at significant premium
- Flood zone 3 without adequate, affordable flood insurance confirmed in writing
The sunk cost of survey fees (£400–£1,500) is not a reason to proceed with a problem purchase. It is far cheaper than inheriting a structural problem post-completion.
Common Survey Myths — Debunked
"If it's amber/yellow, it's fine." Condition 2 items require attention. They are not clearances. A damp patch rated Condition 2 today can become structural timber decay within two years if untreated.
"The surveyor said it was a good property." Surveyors do not give endorsements. Their job is to record condition, not to validate your purchase decision.
"The mortgage valuation flagged nothing." Mortgage valuations are not surveys. They are a 30-minute drive-by assessment to protect the lender's security — not a structural assessment for your benefit.
"Level 2 is fine for any property." RICS recommends Level 3 for any property built before 1900, any property that has been significantly extended or altered, any property with unusual construction (timber frame, thatched roof, concrete construction), and any property you intend to renovate.
"I don't need a survey if I'm buying at auction." You need a survey more urgently if buying at auction — legal completion typically occurs within 28 days and no cooling-off period exists. Commission the survey on the legal pack period before the auction date.
Final Checklist: After Reading Your Survey Report
- List all Condition 3 items and estimated costs
- Note all NI (not inspected) areas and decide whether to investigate further
- Commission any specialist reports recommended
- Obtain contractor quotes for Condition 3 works
- Decide: renegotiate, request works, proceed as-is, or withdraw
- Inform your solicitor of any material findings that affect your decision to proceed
- Add Condition 2 items to a rolling maintenance budget for year 1–3
A survey report is not a reason to panic — it is a negotiating tool and a planning document. Read it carefully, act on the Condition 3 findings, and use it to go into your new property with a clear picture of what it needs.