What Searches Do I Need When Buying a House?

When buying a house in England or Wales, your solicitor will typically order four standard conveyancing searches: a local authority search, a water and drainage search, an environmental search, and a drainage search. Most mortgage lenders require all four as a minimum. Additional searches may be needed depending on the property's location and history.

Definition: Conveyancing Searches Conveyancing searches are formal enquiries made to public bodies and data providers during a property purchase. They are designed to reveal information about a property that doesn't appear on the title deeds or in the seller's paperwork — things like planning history, flood risk, ground contamination, and drainage responsibilities. Searches are ordered by your solicitor (conveyancer) on your behalf, usually after your offer is accepted and before exchange of contracts.

Why Do I Need Property Searches at All? Your solicitor's job is to make sure you know what you're buying before you're legally committed to it. The title register at HM Land Registry tells you who owns the property and what's registered against it. But it doesn't tell you whether the land is at risk of flooding, whether there's a motorway planned nearby, or whether the drains run under the back garden and can never be built over. That's what searches are for. They fill the gaps between what the seller tells you, what the deeds show, and what the physical world looks like. If you have a mortgage, your lender will almost certainly require searches to be completed before they'll release funds. If you're buying with cash, searches are technically optional — but skipping them is almost never advisable, and we'll come back to that.

The Four Standard Searches Explained

-Local Authority Search (CON29 and LLC1) What it reveals: Planning history, planning restrictions, conservation area or listed building status, road adoption (whether your road is maintained at public expense), any enforcement notices or planning conditions affecting the property, and various local land charges. Why it matters: This is the foundational search. It tells you whether the property has any formal planning issues on record, whether the council has any charges or restrictions registered against it, and whether the roads serving it are adopted highways (if they're not, you may be responsible for maintaining them). For a first-time buyer, the road adoption question alone can be significant — unadopted roads can mean shared maintenance costs with neighbours. Who provides it: The relevant local planning authority, via the local authority's search register. Searches can be ordered through the Planning Portal or via your solicitor's preferred search provider. Typical turnaround: Two to ten working days for a personal search; can be longer for an official search in some councils. Approximate cost: £50–£250, depending on the council and search type.

-Water and Drainage Search (CON29DW) What it reveals: Whether the property is connected to the public water supply and public sewer, who is responsible for maintaining the drains, whether there is a public sewer within the property boundary (which affects what you can build over it), and whether the property is at risk of sewer flooding. Why it matters: A public sewer running through your garden isn't visible from the kerb, but it can prevent you from building an extension directly over it and may require a build-over agreement with the water company if you want to proceed. This search is almost always required by lenders and is rarely skippable regardless of property type. Who provides it: The relevant water company, via the Water Industry Act search register. Approximate cost: £30–£60.

-Environmental Search What it reveals: Flood risk (from rivers, surface water, and groundwater), land contamination (former industrial uses, landfill sites, petrol stations), ground stability risks (mining subsidence, sinkholes, radon), and in some versions, energy infrastructure proximity. Why it matters: This is the search most buyers underestimate. The Environment Agency publishes flood risk data publicly, but an environmental search packages that data alongside contamination and ground stability information in a single report assessed against the specific property. A house that appears fine on a quick online flood map check can sit on former industrial land that a detailed environmental search would flag. Who provides it: Private data providers (Groundsure, Landmark, tmGroup and others) who aggregate Environment Agency, British Geological Survey and other public datasets. Approximate cost: £30–£80.

-Chancel Repair Search What it reveals: Whether the property sits within a historic parish where the landowner may be liable to contribute to the cost of repairing the chancel (the altar end) of the local Church of England church. This is a genuinely ancient liability that was only formally registerable at Land Registry from 2013. Why it matters: For most properties, this is a low-risk search with a low-cost result. But in some rural parishes, the liability can be substantial. It's routinely ordered alongside the others. Approximate cost: £20–£40.

Additional Searches: When You Might Need Them

Standard searches cover the majority of residential transactions. But depending on where the property is and what it's been used for, your solicitor may recommend additional searches.

Coal Mining Search — Required in former coal mining areas across Yorkshire, the East Midlands, South Wales, County Durham and parts of the South East. Reveals whether the property sits above historic mine workings that could cause subsidence. Tin Mining / Clay Mining Search — Relevant for properties in Cornwall and parts of Devon. Similar purpose to coal mining searches.

Commons Registration Search — Establishes whether any land within or adjacent to the property is registered common land, which affects development rights.

Planning Search (Regulated) — A more detailed search than the local authority search's planning section, often used where the planning history is complex or where the buyer wants greater confidence about proposed local developments.

HS2 or Road/Rail Scheme Search — Where the property may be affected by major infrastructure projects. These are not always flagged in the standard local authority search.

Flood Risk Report — A standalone detailed flood assessment for properties in areas where the environmental search flags a potential risk, or where flood risk is a significant concern for insurability or mortgage purposes.

Japanese Knotweed Survey — Not a conveyancing search in the traditional sense, but increasingly requested where knotweed is suspected. Its presence on or near the property can affect mortgage lending and insurance.

Do I Need Searches If I'm Buying With Cash?

Technically, no. If there's no lender involved, nobody can force you to order searches. But "technically optional" and "genuinely advisable to skip" are very different things.

Searches exist to protect you, not your lender. An environmental search that costs £50 could reveal that your prospective home sits on a former petrol station site, with ground contamination that makes it uninsurable, unsaleable, and potentially hazardous. No search means no warning.

If you're a cash buyer and you decide to waive searches, make sure that decision is informed and documented — your solicitor should advise you of the risks in writing. Some cash buyers choose to take out a no-search indemnity insurance policy instead, which is faster and cheaper than a full search pack, but provides financial protection rather than information. It tells you nothing about what the searches would actually have found.

For most cash buyers, the pragmatic answer is: run the searches. The cost is small relative to the purchase price; the potential downside of not running them is not.

What Don't Searches Tell You?

This is the question first-time buyers rarely think to ask — and it matters.

Standard searches tell you about formal, recorded information. They don't tell you about things that haven't been formally recorded. A planning history search reveals applications that were submitted to the council. It doesn't reveal works that were carried out without any application being made.

An extension built without planning permission, a loft conversion that exceeded permitted development thresholds, a garage brought into use as a bedroom without the correct change-of-use application — none of these would necessarily appear in a standard local authority search. They exist in the gap between the formal record and the physical property.

This is the consent gap problem, and it's more common than the conveyancing process tends to acknowledge. HouseData.uk's PRISM tool specifically addresses this by cross-referencing EPC time-series data — which records a property's floor area and physical attributes each time an energy certificate is issued — against the planning record. Where the physical property appears to have grown or changed in ways the planning register doesn't account for, PRISM flags it.

For a first-time buyer working with a tight budget and a steep learning curve, having that kind of pre-search risk read — before instructing a solicitor and before spending money on searches — is genuinely useful. It doesn't replace the searches. But it can tell you what questions to ask before you've committed to anything.

HouseData's AI assistant Hilda can also walk you through what a property risk report shows and what the flags mean in plain English, without needing to understand the planning system from scratch.

When Are Searches Ordered and How Long Do They Take?

Searches are typically ordered by your solicitor shortly after you instruct them, which is usually within a few days of your offer being accepted. The full search pack — local authority, water, environmental and drainage — often takes two to four weeks to come back, though local authority searches vary significantly by council. Some return results within days; others can take several weeks during busy periods. The total cost of a standard search pack is typically £200–£400, included in your solicitor's overall conveyancing fee quote. Always confirm what's included and what's charged separately. The DLUHC guidance on property transactions sets out the framework within which searches operate, and Law Society guidance governs how solicitors are expected to advise on search results.

A Quick Reference: Property Searches at a Glance

Local Authority Search — Planning history, restrictions, road adoption, local land charges. Always required.

Water and Drainage Search — Sewer connections, drainage responsibilities, sewer flooding risk. Always required.

Environmental Search — Flood risk, land contamination, ground stability, radon. Always required.

Chancel Repair Search — Historic church repair liability. Routinely ordered.

Coal/Mining Search — Subsidence risk from historic mine workings. Required in mining areas.

Flood Risk Report — Detailed standalone assessment where flood risk is flagged. Ordered when needed.

Commons Registration — Common land status of nearby land. Ordered when relevant.

Before your solicitor orders a single search, run a HouseData.uk property risk report. In seconds, you'll see the consent gap score, flood and planning risk signals, and the questions worth raising before you spend a penny on the conveyancing process. Get your free property risk read at HouseData.uk →

FAQ Schema

Q1: What searches are required when buying a house in England? Your solicitor will typically order four standard searches: a local authority search (planning and restrictions), a water and drainage search, an environmental search (flood risk and contamination), and a chancel repair search. Mortgage lenders require these as a minimum. Additional searches may apply depending on the property's location and history.

Q2: How much do conveyancing searches cost? A standard search pack in England typically costs between £200 and £400 in total, though this varies by location and provider. Local authority searches vary most — some councils charge under £100, others over £200. Costs are usually included in your solicitor's conveyancing quote, but always check what's itemised.

Q3: Do I need searches if I'm buying a house with cash? Legally, no — searches are required by lenders, not by law. But skipping them means buying without knowing the property's flood risk, contamination history, or planning record. Most solicitors strongly advise cash buyers to order searches anyway. No-search indemnity insurance is an alternative but provides financial cover, not information.

Q4: What does a local authority search reveal? It reveals the property's planning history, any enforcement notices, conservation area or listed building status, whether nearby roads are publicly maintained, and any local land charges registered against the property. It does not reveal works carried out without planning permission — those require a separate consent gap check.

Q5: How long do conveyancing searches take? Environmental and water searches typically return within a few days. Local authority searches vary significantly — some councils respond within a week, others take three to four weeks. The full search pack usually takes two to four weeks. Your solicitor should give you an estimated timeline when they place the order.