What are Valuations and Surveys?
Who it’s for, and how to use them when buying or selling a home.
In the UK, the word valuation is used to describe several completely different things — and that’s why so many buyers and sellers end up confused, misinformed, or blindsided at crucial moments.
Why This Guide Matters
This guide explains:
- the four main types of valuation/survey
- what each one is for
- who pays for it
- how accurate it is
- how it affects your sale or purchase
- what to do when the numbers don’t match
By the end, you’ll know exactly which service you need — and how to avoid the most common mistakes.
Valuations & Surveys (Explained Clearly)
The Four Main Service Types in the UK
There are four main services you’ll encounter:
- Market Appraisal (Estate Agent Valuation)
- Mortgage Valuation (Lender’s Check)
- Home Survey (Level 2 or Level 3)
- Formal Valuation (Red Book / Legal)
Check out this comparison table for a quick guide:
| Service | Purpose | Who It’s For | Who Pays | Accuracy | Depth | Impact |
|---|---|---|---|---|---|---|
| Automatic Valuation Model (AVM) | Quick estimate of market value | Everyone | Free (usually) | Low-medium | Very light | Curiosity not Strategy |
| Market Appraisal | Estimate likely sale price | Seller | Free (sales tool) | Medium | Light | Sets asking price |
| Mortgage Valuation | Protect lender’s loan | Lender | Buyer (via lender) | Conservative | Very light | Can derail chains |
| Home Survey (L2/L3) | Identify defects & risks | Buyer | Buyer | High | Medium–Deep | Affects renegotiation |
| Formal Valuation (Red Book) | Legal/financial purposes | Courts, HMRC, solicitors | Varies | High | Medium | Used for probate, divorce, tax |
