Property Searches in Conveyancing: What You Need and Why

Property searches are the investigative backbone of a conveyancing transaction. They reveal risks that are not apparent from inspecting the property or reviewing the title register — contaminated land, flood risk, planned road schemes, mining instability, and dozens of other issues that could affect the property’s value, insurability, or habitability. Advising clients correctly on which searches are needed, and what to do when a search reveals a problem, is a core conveyancing skill. This guide covers the full range of searches available in England and Wales, what each one reveals, when each is mandatory, and the decisions that good conveyancing practitioners make about recommended but optional searches.

The Purpose of Property Searches

A property search is an enquiry made to a public body, local authority, or specialist data provider to obtain information about the property or its surroundings that would not otherwise be available from the title register or from physical inspection. Searches are ordered and reviewed before exchange of contracts, because the buyer needs to make an informed decision about whether to proceed.

Searches serve three distinct purposes:

1. Protecting the buyer: revealing risks that could affect their enjoyment, insurability, or future saleability of the property
2. Protecting the lender: most mortgage lenders specify minimum search requirements in the UK Finance Mortgage Lenders’ Handbook
3. Protecting the solicitor: a failure to recommend or carry out searches appropriate to the property’s location is one of the most common grounds for negligence claims in conveyancing

The Law Society’s Conveyancing Protocol sets out a recommended search framework and advises solicitors to document their advice on search recommendations and the client’s decisions.

The Standard Search Pack: Mandatory Searches

For virtually every residential purchase in England (outside of London, which is broadly similar), the standard search pack consists of three core searches that are required or strongly expected by mortgage lenders:

1. Local Authority Search (CON29 and LLC1)

The local authority search is the single most important search in any conveyancing transaction. It is submitted to the local council (or a search agent searching on their behalf) and returns two sets of information:

The Official Certificates of Local Land Charges (LLC1): a formal search of the local land charges register, revealing:

• Financial charges on the property (not mortgages, but things like compulsory purchase orders, drainage agreements)
• Registered planning restrictions, tree preservation orders, conservation area designations
• Listed building designations
• Enforcement notices registered against the property

CON29 Enquiries of Local Authority: additional enquiries (standard and optional) covering a much wider range of matters:

• Planning permissions and conditions relating to the property
• Building regulation approvals for works
• Whether the property is on or near a proposed road scheme, compulsory purchase, or urban development area
• Whether any enforcement action has been taken or is contemplated
• Contaminated land (at a high level — the CON29 only reveals formal contamination notices; a separate environmental search is needed for full contamination risk assessment)
• Housing Act notices (improvement notices, prohibition orders, demolition orders)

The CON29 also has “Part 2” optional enquiries for specific additional matters (road proposals, pipe or cable information, outstanding notices under specific legislation). These are not always ordered but should be considered based on the property’s location and characteristics.

Turnaround time: Varies widely. Some councils (particularly those using the National Land Information Service/NLIS hub) respond digitally within 24–48 hours. Others process manually and can take four to six weeks, particularly during peak periods.

Personal search vs official search: A personal search is carried out by a search agent who physically inspects the local authority register rather than submitting a formal application. Personal searches are generally faster and cheaper than official searches, and are accepted by most (but not all) mortgage lenders. Solicitors should check the lender’s handbook to confirm whether personal searches are acceptable before ordering.

2. Drainage and Water Search (CON29DW)

The drainage and water search (CON29DW, developed by the Water Industry in conjunction with the Law Society) is submitted to the relevant water and sewerage company, and reveals:

• Whether the property is connected to mains water supply
• Whether the property drains to the public sewer network (foul drainage)
• Whether surface water drainage is to the public sewer or to a soakaway/watercourse
• Whether any public sewer runs within the boundary of the property (which may affect the ability to extend or build over it)
• The location of the nearest public sewer

The significance of the drainage search lies primarily in the sewer crossing: if a public sewer passes through the property, any extension or outbuilding would require a build-over agreement with the water company, and the footprint of the property may be constrained. A sewer crossing can materially affect the viability of planning permissions the buyer intends to pursue.

Turnaround time: Typically 5–10 working days from the relevant water company. Most searches are now submitted electronically through search portals and returned digitally.

3. Environmental Search

The environmental search draws on national and regional datasets to assess risks from:

• Contaminated land: proximity to historic landfill sites, industrial uses, petrol stations, and other known sources of contamination. A positive result does not necessarily mean the land is contaminated, but it triggers further investigation.
• Flood risk: from rivers (fluvial flooding), surface water, coastal flooding, and the risk of groundwater flooding. The Environment Agency’s flood risk maps are a primary source.
• Ground stability: subsidence risk from clay shrinkage/expansion, peat, historical mining (at a high level — specific mining searches are separate), and karst (limestone dissolution).
• Radon: radon is a naturally occurring radioactive gas that rises through the soil in certain geological formations, particularly granite and limestone. The UK Health Security Agency publishes radon maps; where a property is in a radon-affected area, the buyer should be advised to test radon levels and consider mitigation.

Major providers include Groundsure, Landmark Information, and Terrafirma. Each provider uses slightly different data sources and risk scoring methodologies, and their reports are not identical. Where a report returns an “action required” or “further investigation” rating, the solicitor must advise the client accordingly — either commissioning a Phase 1 environmental site assessment (for significant contamination risk), recommending appropriate insurance, or advising the buyer to proceed at risk.

Location-Specific Mandatory or Strongly Recommended Searches

Coal Mining Search

Required in areas underlain by former coal mines, including much of Yorkshire, Derbyshire, Nottinghamshire, Staffordshire, County Durham, Northumberland, South Wales, and parts of the East Midlands. The search is submitted to the Coal Authority and reveals:

• Whether the property is in a Development High Risk Area
• Records of coal mine entries (shafts, adits) within or near the site
• Current or historical underground workings
• Any surface hazard

Where the search reveals a recorded mine entry near the property, structural advice from a mining engineer should be sought. The Coal Authority also offers a Mine Entry Proximity Service for more detailed advice.

Tin and Other Mineral Mining Searches

• Cornwall and Devon: historic tin, copper, and china clay mining creates ground stability risks. Searches specific to these areas (from providers such as Groundsure or Argyll) should be ordered.
• Brine subsidence (Cheshire and parts of the North West): natural brine pumping and salt dissolution create subsidence risk. A separate brine search is recommended.
• Limestone areas (Derbyshire Peak District, Yorkshire Dales, parts of Somerset): karst dissolution creates sinkhole risk not always captured in standard environmental searches.

Flood Risk-Specific Searches

For properties identified as being at flood risk by the environmental search, or in known flood plains, a more detailed flood risk assessment may be recommended. The Environment Agency’s National Flood Risk Assessment (NaFRA) provides detailed risk band data. Properties in Flood Zone 3 (high risk) may be difficult to insure under standard buildings insurance policies, and solicitors should advise clients to check insurability before exchange.

Since 2016, the Flood Re insurance scheme has helped make flood insurance more affordable for many properties in high-risk areas, but the scheme has limitations — it does not cover properties built after January 2009, for example.

Chancel Repair Search

Chancel repair liability is an ancient obligation that can require property owners to contribute to the cost of repairing the chancel of the local parish church. Following the House of Lords’ decision in Aston Cantlow v Wallbank [2003] and the subsequent changes to the Land Registration Act 2002, chancel repair liability can only be enforceable against registered proprietors where it has been registered as an overriding interest (before October 2013) or as a notice on the title. Where the title is not registered, or registration has occurred since October 2013, the risk is lower but not zero for unregistered land.

A chancel repair search (available from various search providers for approximately £15–£25) confirms whether the property is within a chancel repair area. If it is, chancel repair indemnity insurance is typically recommended.

Ground Stability / Geological Searches

Beyond standard environmental searches, specific ground stability searches may be recommended for:

• Properties in areas of shallow foundations or expansive clay soils
• Properties near quarries or surface excavations
• Properties in areas with a history of subsidence claims (building insurers maintain loss data)

Optional Searches: When to Recommend Them

There are numerous additional searches available that are not standard but should be considered based on the specific property and location. Key examples:

HS2 or major infrastructure search: For properties near proposed or under-construction major infrastructure (HS2, national highways improvements), a dedicated search can reveal compulsory purchase risk, noise impact, and blight.

Highways search (separate from CON29): Where the CON29 reveals proposed road schemes, a more detailed highways enquiry with Highways England or the relevant authority may be warranted.

Commons registration search: Where the property adjoins common land or a village green, a Commons Registration search (CL14A) confirms whether any part of the property or adjoining land is registered common land — which would prevent development.

Pre-planning enquiry: For buyers intending to develop, a detailed planning search or pre-application enquiry with the local planning authority can reveal the authority’s likely attitude to specific proposals.

What to Do When Searches Reveal a Problem

The solicitor’s obligation when a search reveals a potential issue is to:

1. Review the result carefully and assess its significance
2. Seek specialist advice where the issue is outside the solicitor’s expertise (environmental contamination, mining risks)
3. Advise the client in writing of the issue, its implications, and the options
4. Not exchange contracts until the client has understood and accepted the position

Options when a search reveals a problem typically include:

• Further investigation: commissioning a specialist report (Phase 1 environmental assessment, structural survey, mining engineer’s report)
• Indemnity insurance: available for some title-related risks but not for physical risks (flood damage, subsidence)
• Price renegotiation: the buyer may seek a reduction in the purchase price to reflect the risk
• Proceeding at risk: with fully informed client consent, after advice
• Withdrawing: before exchange, the buyer can withdraw without penalty; after exchange, they cannot

Obiter automatically identifies search results as they arrive by email, logs the results to the matter, and drafts an appropriate report to the client — ensuring that nothing is overlooked even in a busy conveyancing department handling hundreds of concurrent transactions.