What Searches Do I Need When Buying a House in the UK?

Are property searches a legal requirement?

Searches are not a statutory obligation for a cash buyer, but they are effectively compulsory when buying with a mortgage — almost every UK lender requires the standard searches before releasing funds. Even buying outright, skipping searches means committing without sight of flood risk, contamination, planning enforcement or mining subsidence.

“Your conveyancer will carry out searches to find out more about the property and the local area before you commit to the purchase.”

What does the local authority search cover?

The local authority search is two parts: the LLC1 (a list of charges registered against the property, such as financial charges and conservation-area or listed-building status) and the CON29 (questions answered by the council about planning, building regulations, roads, and enforcement notices). It is the single most important search because it surfaces planning and enforcement issues that can affect value and your ability to alter the property.

“A local authority search will tell you about matters directly affecting the property, such as whether it is in a conservation area or subject to an enforcement notice.”

Why is a drainage and water search needed?

The drainage and water search (CON29DW) confirms whether the property is connected to the public foul sewer and mains water, and whether any public sewers cross the land — which can restrict where you can build an extension. A property on a private septic tank, or with a public sewer running under a planned extension, is the kind of issue this search exists to catch before you exchange.

What does an environmental search show?

The environmental search reports contaminated-land risk based on the site's historical use, flood risk, ground stability and subsidence potential, radon, and nearby energy or infrastructure projects. Where it flags a concern, your conveyancer may recommend a more detailed report or an indemnity. You can preview much of this risk yourself before you even offer — our flood risk, ground stability and radon tools draw on the same official Environment Agency, BGS and UKHSA data.

When do I need a coal mining search?

A coal mining search (CON29M) is ordered when the property lies within a former or current coalfield — large parts of South Wales, Yorkshire, the North East, the Midlands, the North West, Scotland and Kent. It reveals past and proposed mining, mine entries such as shafts, mine-gas risk, and subsidence. Outside the coalfield it is not ordered. You can check whether a property is in a coal mining area first with our coal mining check.

“If you're buying a property in a coalfield area, you should get a coal mining report to find out about any risks from past, present or future coal mining.”

Do I need a chancel repair search?

Chancel repair liability is an ancient obligation, attached to some properties near pre-1900 parish churches, to contribute to the repair of the church's chancel. Because the chance of a claim is low but the potential bill is high, conveyancers almost always resolve it with a one-off chancel repair indemnity policy (around £10–£30) rather than a full search — a cheaper and faster way to protect you and your lender.

When are searches ordered, and how long do they take?

Your conveyancer orders searches once your offer is accepted and you have instructed them — not before. Turnaround varies: drainage, environmental and coal searches are often returned within days, while local authority searches can take anywhere from a few days to several weeks depending on the council. Because the spend is non-refundable if the purchase falls through, it is worth doing your own pre-offer due diligence first so you only commit to searches on a property you are confident about.