Buyer guide
What Checks Should I Do Before Buying a House in the UK?
Updated 29 May 2026
Before buying a house in the UK you should run early due-diligence checks on flood, coal, ground stability and ownership, then commission formal conveyancing searches and a survey once your offer is accepted. The full search pack costs £250 to £450 and a RICS Level 2 survey £400 to £900. Early checks cost little and help you avoid wasting money on a bad property.
Property checks before buying: cost and timing
| Check | Typical cost | When to do it |
|---|---|---|
| Early online due-diligence (flood, coal, ground, ownership) | Free to £4.99 | Before making an offer |
| Environmental search | £40 to £70 | After offer accepted, via solicitor |
| Coal mining search (CON29M) | £30 to £60 | After offer accepted, coalfield areas only |
| Local authority search | £40 to £250+ | After offer accepted, via solicitor |
| Drainage and water search | £40 to £80 | After offer accepted, via solicitor |
| Full conveyancing search pack (combined) | £250 to £450 | After offer accepted |
| RICS Level 2 HomeBuyer Survey | £400 to £900 | After offer accepted, before exchange |
The full pre-purchase checklist
- Run an early online due-diligence report to screen flood, coal, ground-stability and ownership risk before you make an offer.
- Verify the title and ownership using HM Land Registry to confirm who owns the property and check for restrictions.
- Commission a local authority search to reveal planning history, road status, building control and enforcement notices.
- Order an environmental search for contaminated land, flood and ground-stability data from the Environment Agency and British Geological Survey.
- Order a coal mining search (CON29M) if the property is in a Coal Authority reporting area.
- Get a drainage and water search to confirm how the property connects to mains water and sewerage.
- Book a survey, with a RICS Level 2 HomeBuyer Survey suiting most conventional homes.
- Review the EPC and check the energy rating and running costs.
- Check local crime data via Police.uk and school performance via Get Information about Schools (GIAS).
What to do before you make an offer
The cheapest mistakes to avoid are the ones you catch early. Before you make an offer, screen the property for the big-ticket risks: flood zone, former coal mining, ground stability and who actually owns the land.
A free HomeBuyerCheck report covers these basics at no cost, and the £4.99 Premium tier adds depth. This lets you triage a shortlist and decide which properties are worth a £250 to £450 conveyancing pack and a survey, rather than paying for searches on a home you later abandon.
What your solicitor handles after offer
Once your offer is accepted and you instruct a conveyancer, they order the formal search pack on your behalf. This usually bundles the local authority, environmental, drainage and water, and where relevant coal mining searches.
These searches are the official, lender-recognised checks. They take time to come back, with the local authority search often the slowest, so order them promptly to avoid delaying exchange.
Survey: do not skip it
Searches tell you about the land and the area, but only a survey inspects the building itself. For most homes a RICS Level 2 HomeBuyer Survey at £400 to £900 strikes the right balance, while older or unusual properties may warrant a more detailed Level 3 survey.
A survey can reveal damp, structural movement or roof problems, giving you grounds to renegotiate the price before exchange.
Check any UK property before you offer
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Frequently asked questions
What is the most important check before buying a house?
There is no single most important check, but title verification, the local authority search and a survey together cover ownership, the area and the building. Early flood and coal screening helps you avoid wasting money on the wrong property.
How much do all the property checks cost?
A full conveyancing search pack runs £250 to £450, and a RICS Level 2 survey £400 to £900. Early online due-diligence can be free or as little as £4.99, so the upfront triage is cheap relative to the formal stage.
Can I do my own property checks?
You can do early checks yourself using free public data and tools, covering flood, coal, ground risk, crime and schools. The formal conveyancing searches must be ordered through your solicitor because lenders rely on them.
When should I do property checks?
Do informal due-diligence before making an offer, then the formal searches and survey after your offer is accepted and you have instructed a solicitor. Ordering searches early in that stage helps avoid delays to exchange.
Do I need a survey and searches?
Yes. They cover different things. Searches tell you about the land, area and legal position, while a survey inspects the physical condition of the building. Lenders require searches, and a survey protects you from costly defects.
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