Accuracy is everything. We’ve invested over £10 million in systems that deliver data you can trust.
Rich data, accurate results, outstanding service.
OneSearch owns the largest source of property and land search data.
A host of other providers, we set the standard for rapid response, detail-rich property searches in England and Wales. We go beyond delivering the data – we ensure total confidence in the property search process for solicitors, conveyancers, and other conveyancing professionals.
Experience shapes our services. We’ve been collecting and distributing local property information for over 30 years. We offer the broadest range of up-to-date search insights and deliver relevant information quickly and seamlessly.
Our data-centric approach delivers quality-checked property search data, guaranteed.
Backed by safe and secure systems, our data is underpinned by a team of forensic problem solvers who won’t stop until they discover solutions to push transactions forward.
Data delivery that drives intelligent, swift conveyancing decisions.
OneSearch in numbers
£10m
200+
Our team of more than 200 people include data specialists who enhance our data daily.
5.5m+
OneSearch offers the most extensive range of property information datasets in the UK.
30+
More than 30 years’ experience – setting the gold-standard in property searches.
All News
The Landmark Q1 2025 Residential Property Trends Report is now available
Landmark’s new commercial product portfolio has arrived
What is the true cost of AML for conveyancers?
What specific areas of conveyancing would most benefit from AI?
Conquer Conveyancing Compliance with our AML Guide
Celebrating Success: OneSearch and Ladies of Law on International Women’s Day 2025
Why don’t lower volumes mean faster property transactions?
Important Supplier Price Updates
What is the Safe Harbour Standard?
Landmark Talks Property podcast: Sustainability in Conveyancing
Our Products and Services
One of the many advantages of working with OneSearch, is our range of products. We offer a full suite of searches to accommodate the conveyancing needs of both Residential and Commercial transactions – delivering all the property insights you need. Let’s get things moving.
Local Authority Searches
Find the planning, building control and highways data you need for property and land in England and Wales.
We’ve gathered many unique insights that add value to basic datasets, and then Triple-Checked this information for accuracy.
Drainage & Water
Lenders are specific about water and drainage searches – we offer the right information, in the clearest consistent format.
The information in our water and drainage searches is guaranteed to be up-to-date, authoritative, and presented in an easy-to-understand format.
Environmental & Utilities
Groundsure, utility searches, Sitecheck, flood risk and more…
OneSearch offers all the residential and commercial environmental products you’d expect, but we also provide reports that can expand the knowledge-base for planners, conveyancers and property professionals.
Risk & Compliance
There are many standard Anti-Money Laundering, Identity, and proof of funds checks you’ll need as a property professional.
You can have confidence in our team’s experience, identifying providers that share our dedication to delivering high levels of assurance.
Indemnities
Situations change, but the integrity of our source information is assured.
You can support your customers with the insurance policies needed to pass on those high levels of confidence, throughout the property lifecycle.
Local Authority Searches
Local Authority Searches
Find the planning, building control and highways data you need for property and land in England and Wales.
We’ve gathered many unique insights that add value to basic datasets, and then Triple-Checked this information for accuracy.
Drainage & Water
Drainage & Water
Lenders are specific about water and drainage searches – we offer the right information, in the clearest consistent format.
The information in our water and drainage searches is guaranteed to be up-to-date, authoritative, and presented in an easy-to-understand format.
Environmental & Utilities
Environmental & Utilities
Groundsure, utility searches, Sitecheck, flood risk and more…
OneSearch offers all the residential and commercial environmental products you’d expect, but we also provide reports that can expand the knowledge-base for planners, conveyancers and property professionals.
Risk & Compliance
Risk & Compliance
There are many standard Anti-Money Laundering, Identity, and proof of funds checks you’ll need as a property professional.
You can have confidence in our team’s experience, identifying providers that share our dedication to delivering high levels of assurance.
Indemnities
Indemnities
Situations change, but the integrity of our source information is assured.
You can support your customers with the insurance policies needed to pass on those high levels of confidence, throughout the property lifecycle.
Our Partners
Our Partners