Property Surveys Explained: Which Survey Do You Need?

Last updated: May 2026 · 7 min read

A property survey is an independent inspection of a property's condition. It is not the same as the mortgage valuation (which is for the lender's benefit, not yours). A survey can reveal problems that could cost thousands to fix — damp, subsidence, roof issues, structural defects — and give you leverage to renegotiate the price or walk away before it is too late.

Types of Survey

RICS Level 1 (Condition Report): The most basic survey. A traffic-light system (green/amber/red) rating the condition of each element of the property. No advice on repairs or costs. Suitable for new-build or modern properties in good condition. Cost: 300-500 pounds.

RICS Level 2 (HomeBuyer Report): The most popular choice. Covers everything in Level 1 plus advice on defects, repairs needed, potential legal issues and things that could affect the property's value. Does not look behind walls or under floors. Suitable for conventional properties built after 1900 in reasonable condition. Cost: 400-700 pounds.

RICS Level 3 (Building Survey): The most comprehensive survey. A detailed inspection of every accessible part of the property including roof spaces, cellars and behind service panels where possible. Provides a full assessment of the building's construction, condition and necessary repairs with cost estimates. Essential for older properties (pre-1900), listed buildings, unusual construction, properties you plan to renovate or extend. Cost: 600-1,500+ pounds.

What Surveys Do Not Cover

No standard survey tests the electrical wiring, gas installations, drainage or heating system in detail. If the surveyor identifies concerns in these areas, they will recommend specialist inspections. Surveys also do not cover areas that are inaccessible (e.g., behind fitted kitchens, under fixed floor coverings). If you want specific tests, arrange them separately.

What to Do with the Results

If the survey reveals significant issues, you have three options: renegotiate the price to reflect the cost of repairs, ask the seller to fix the problems before completion, or walk away. Your solicitor can advise on renegotiation. Get quotes from contractors for any recommended repairs — this gives you hard numbers to negotiate with. On a 350,000 pound property with 15,000 pounds of necessary roof work, a price reduction to 335,000 is a reasonable request.

Specialist Surveys

Damp survey: A specialist damp surveyor can distinguish between rising damp, penetrating damp and condensation. Many general surveyors flag damp based on moisture meter readings alone, which can be misleading. Cost: 200-400 pounds.

Structural engineer's report: If subsidence, movement or structural defects are suspected, a structural engineer provides a definitive assessment and recommends remedial work. Cost: 400-800 pounds.

Drainage survey: A CCTV survey of the drainage system reveals blockages, collapsed pipes, root intrusion and other issues. Especially important on older properties. Cost: 200-350 pounds.