Key facts: The lender's valuation is not a survey — it protects the bank, not you. RICS surveys come in three levels: Level 1 (condition report, ~£300–£500) for new/conventional homes; Level 2 (HomeBuyer, ~£400–£700) for standard properties in reasonable condition; Level 3 (full building survey, ~£700–£1,500) for older, altered, unusual or visibly imperfect properties.
The valuation is not a survey
The mortgage valuation answers one question for the lender: is this property adequate security for the loan? It can be a brief visit or entirely desk-based, and you often never see the report. Buyers who "had a survey" because the lender valued the property are the ones blindsided by damp, roof failure or subsidence six months in. If you want the house inspected for your benefit, you commission that separately.
The three RICS levels
Level 1 — Condition Report. A traffic-light overview of visible condition, no advice or valuation. Suits new-builds and near-new conventional homes.
Level 2 — HomeBuyer Report. The default for standard houses and flats in apparently reasonable condition: visible defects, damp readings, roof and timber issues, plus maintenance advice. Optionally includes a market valuation.
Level 3 — Building Survey. The full inspection: structure, construction methods, defects analysed with causes and remedies, and guidance on repair priorities. The right call for pre-1930s homes, extended or altered properties, non-standard construction, listed buildings, or anything you plan to renovate.
Choosing by property, not price
Match the level to the property's age, complexity and visible condition — not to the survey fee. A £700 difference between levels is noise against a £15,000 roof or a structural movement problem. When a survey does flag issues, that's rarely a reason to walk away: quotes for the works become renegotiation evidence, routinely recovering multiples of the survey cost off the price.
Booking it right
Book the survey once your offer is accepted, using an RICS-registered surveyor local enough to know the housing stock. Your broker or conveyancer can recommend one — and if the survey moves the price, your broker updates the lender cleanly. Get matched with a mortgage broker through Nesto — free, no obligation.
Frequently asked questions
Do I legally need a survey to buy a house?
No — but buying without one means accepting the property's condition blind. The lender's valuation does not protect you.
Which survey for a 1930s semi?
Level 2 if it appears sound and unaltered; Level 3 if it's extended, visibly tired, or you plan works. Pre-1930s leans Level 3.
What if the survey finds problems?
Get repair quotes, then renegotiate the price or ask the seller to fix them — surveys pay for themselves this way more often than not.
How long does a survey take?
The visit takes 1–4 hours by level; reports usually arrive within 3–5 working days.