Types of Conveyancing Searches Explained

TL;DR: The three core conveyancing searches — local authority, water and drainage, and environmental — each look at a completely different type of risk, from planning history and road adoption through to sewer connections and flood or contamination data. Understanding what each one actually checks, and how to read the result, can help you make sense of what your solicitor or licensed conveyancer comes back to you with.

If you've been told your purchase is "waiting on searches" without much further explanation, it's easy to picture one generic check happening somewhere in the background. In reality, conveyancing searches are several distinct enquiries, each sent to a different organisation and each looking for a different kind of problem. Getting a basic handle on local, water and environmental searches makes the whole waiting period a lot less mysterious.

This guide walks through each of the three core searches in turn — what they cover, who they're sent to, what a typical result looks like, and what tends to happen if something gets flagged. It focuses specifically on comparing these three against each other, rather than trying to list every possible extra search that might apply to a particular property.

I'll say upfront that I'm a blogger, not a solicitor or licensed conveyancer, so this is general background information rather than advice about which searches you personally need or how to interpret your own results. Your solicitor or licensed conveyancer is the person to ask about anything specific that comes back on your file.

Table of contents

• The three core searches at a glance
• Local authority searches in detail
• Water and drainage searches in detail
• Environmental searches in detail
• Comparing the three side by side
• How to read a search result without panicking
• What typically happens when something is flagged
• When extra searches get added on top
• FAQs about conveyancing search types
• Summary and what to do next

The three core searches at a glance

Almost every standard UK residential purchase involves these three searches in some form, regardless of the specific property or location, because each one covers a category of risk that applies fairly universally.

What each search is fundamentally about

• Local authority search: planning, building control and council-held information about the property and surrounding area
• Water and drainage search: how the property connects to public water supply and sewerage
• Environmental search: historic land use, flood risk and contamination data drawn from various national datasets

Why all three are treated as standard

Lenders generally expect all three to be carried out on a typical purchase, since together they cover planning and legal risk, practical service connections, and environmental hazards — three quite different categories that no single search could realistically combine. Even cash buyers without a lender to satisfy are usually well advised to have all three done, since the risks they cover exist independently of how the purchase is funded.

How the three searches typically get submitted

In most transactions, your solicitor or licensed conveyancer submits all three searches at broadly the same time, early in the process, precisely because the local authority search tends to take the longest and it makes sense not to wait for one before starting the others. Some firms use a combined search product that bundles elements of all three into a single order with one provider, while others submit each separately to the specific organisation responsible — either approach is common, and the practical outcome for you as a buyer is much the same.

Local authority searches in detail

Often referred to by its component parts, LLC1 and CON29, the local authority search is submitted to the relevant council and draws on registers and records they hold.

What it typically reveals

1. Planning applications, permissions, and any enforcement notices affecting the property
2. Building regulations approval history for past extensions or alterations
3. Whether the road serving the property is publicly maintained or privately owned
4. Conservation area status or listed building designation
5. Nearby road schemes, compulsory purchase proposals, or planned developments

Where the delay usually comes from

Local authority searches are notorious for variable turnaround, ranging from a few days in some councils to several weeks in others, depending largely on how each authority processes requests and whether records are digitised. This is one of the least predictable parts of the whole search process, and it's rarely something your own conveyancer can influence beyond choosing between a personal search and a regulated search from a private provider.

Water and drainage searches in detail

Unlike the local authority search, this one is sent directly to the relevant water and sewerage company rather than the council, since they hold the specific infrastructure records involved.

What it typically reveals

• Whether the property is connected to mains water supply and mains sewerage
• The approximate route of water and drainage pipework serving the property
• Whether a public sewer runs under or near the property, which matters for any future building work
• Which water company is responsible for billing at that address

Why this search matters more than people expect

It's easy to assume every property is simply connected to mains services, but older or rural properties in particular sometimes rely on private drainage arrangements such as septic tanks, which come with their own maintenance responsibilities. Similarly, discovering a public sewer runs directly beneath a garden where an extension was planned is exactly the kind of finding this search exists to catch before the purchase completes rather than after.

Environmental searches in detail

The environmental search pulls together data from a range of sources, including historic land use records, flood mapping, and contaminated land databases, to build a picture of environmental risk around a property.

What it typically reveals

• Whether the site or nearby land has a history of contaminating industrial use
• Flood risk from rivers, surface water, or in some cases coastal sources
• Proximity to current or former landfill sites
• General ground stability indicators, which can sometimes overlap with separate mining searches

Why a flag doesn't always mean a real problem

Environmental search results are often based on area-wide data rather than anything specific to the individual property, so a flagged result frequently reflects a general historic risk in the wider vicinity rather than a confirmed issue with the actual house. This is precisely why a flagged environmental search often leads to a further, more targeted report rather than an automatic assumption that something is wrong.

Comparing the three side by side

Seeing the three searches next to each other can make it clearer why all three are needed rather than just one broader check.

Quick comparison

• Local authority: sent to the council, covers planning and legal risk, turnaround highly variable
• Water and drainage: sent to the water company, covers physical service connections, usually returned quickly
• Environmental: sent to a data provider drawing on multiple sources, covers hazard and contamination risk, often automated and fast

Why turnaround times differ so much

The local authority search is the outlier because it depends on a council actually processing a request against its own records, some of which still aren't fully digitised. Water and drainage and environmental searches, by contrast, increasingly rely on databases that can be queried automatically, which is why they're often returned within a day or two even when the local authority search for the same property is still weeks away.

How to read a search result without panicking

Search results can look intimidating, filled with technical language and long lists of caveats, even when nothing significant has actually been found.

A sensible approach to reviewing results

1. Look for a summary or headline section first, if the provider includes one
2. Remember that many caveats are standard boilerplate rather than property-specific warnings
3. Focus on anything your solicitor or licensed conveyancer specifically raises with you, rather than trying to interpret every line yourself
4. Ask directly if anything genuinely confuses or concerns you, rather than assuming the worst

It's worth remembering that your solicitor or licensed conveyancer reviews these results as a matter of routine and will proactively flag anything genuinely significant, so a long document with no follow-up questions is usually a good sign rather than something overlooked.

What typically happens when something is flagged

When a search does turn up something worth investigating, there's a fairly standard sequence of steps that typically follows.

Typical next steps

• Your solicitor or licensed conveyancer reviews the specific wording of the flag in detail
• Further written enquiries may be raised with the seller's solicitor for clarification
• A more specialist report might be commissioned, for example around flood risk or mining history
• Indemnity insurance may be considered for certain low-risk historic issues
• In more significant cases, the terms of the purchase might be discussed or renegotiated

Red flags to watch for

• A search result that's vague or heavily caveated with no explanation offered
• Being told a search "came back fine" with no detail at all when you specifically ask
• A significant flag being mentioned only verbally, with no written explanation provided
• Pressure to proceed quickly before a flagged issue has been properly looked into

When extra searches get added on top

The three core searches don't cover every possible risk, and depending on where a property is located, additional searches are sometimes recommended alongside them.

Examples of additional searches

• Coal mining searches, for properties in former coalfield areas
• Detailed flood risk searches, for properties near rivers or coastlines
• Chancel repair searches, relating to historic liability near certain old churches
• Regional mineral searches, such as tin or clay in specific parts of the country

These are generally recommended based on the specific location rather than applied universally, and your solicitor or licensed conveyancer will typically explain why a particular extra search has been suggested for your property if one comes up.

How postcode data drives these decisions

Most conveyancers and search providers use the property's postcode against known regional risk datasets to decide which additional searches are worth ordering, rather than guessing based on general impressions of an area. This is why two properties on the same street can occasionally end up with slightly different recommended searches, particularly near the boundary of a known risk zone such as a former coalfield or a flood-prone stretch of river. If you're ever curious why a particular extra search has appeared on your quote, it's entirely reasonable to ask what specific data triggered the recommendation.

FAQs about conveyancing search types

Do I need all three searches for every property?
In most standard residential purchases, yes — local authority, water and drainage, and environmental searches are generally treated as the standard baseline regardless of property type.

Which search usually takes the longest?
The local authority search is typically the slowest and least predictable, since it depends on how quickly the relevant council processes the request.

Can I request copies of my own search results?
Yes, you can usually ask your solicitor or licensed conveyancer for copies, though they'll typically only flag specific points to you rather than sending every document unprompted unless you ask.

Do these searches tell me anything about the physical condition of the house?
No — all three searches cover legal, administrative and environmental risk rather than the physical condition of the building, which is what a survey is for instead.

What happens if the environmental search flags flood risk?
It typically leads to a closer look, sometimes including a more detailed flood report, and consideration of things like insurance availability, rather than an automatic assumption the purchase can't proceed.

Are search results the same everywhere in the UK?
No — local authority search format and turnaround varies by council, and both water company and environmental data vary by region, so results look somewhat different depending on where a property is.

Summary and what to do next

• Local authority, water and drainage, and environmental searches each cover a distinct category of risk
• Local authority search turnaround is the least predictable and often drives overall search timelines
• Water and drainage searches focus on physical service connections rather than legal or environmental risk
• Environmental search flags often reflect area-wide data rather than a confirmed property-specific problem
• Additional location-specific searches may be recommended on top of these three, depending on the property

This article is general information about how the main conveyancing search types typically work, not advice about which searches your specific purchase requires or how to interpret your own results. Always discuss your search results directly with a qualified solicitor or licensed conveyancer.

Need help or have questions?

We can't give legal advice on this site — we're bloggers, not solicitors or licensed conveyancers — but we're happy to point you toward more guides if you're trying to make sense of the search process generally.

You can reach us through our contact form on the website using the button below. For advice on your specific search results or which searches your purchase needs, please speak to a qualified solicitor or licensed conveyancer directly.

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Reminder: this site is a blog, not a law firm, and nothing in this article is a substitute for professional legal advice. Always get personalised guidance from a qualified solicitor or licensed conveyancer before making decisions about buying or selling a home.