Landmark Homecheck and HomeDueDiligence compared
Homecheck is Landmark Information Group’s range of residential environmental reports, including flood reports. They cover risks such as flooding, contaminated land and ground stability.
They’re usually ordered by your conveyancer as part of the searches, after your offer has been accepted.
A HomeDueDiligence report comes earlier: you run it yourself, before you offer, from official records on flooding, planning, the ground, noise and the neighbourhood.
Side by side
| What | Landmark Homecheck | HomeDueDiligence |
|---|---|---|
| When you get it | Usually after your offer is accepted, with the searches | Before you offer, online in minutes |
| Who orders it | Usually your conveyancer | You |
| Flooding and ground | Yes | Yes, from official maps and records |
| Contaminated land | Yes | Historic landfill within 500 m (England) |
| Planning, protections and extensions | Not its focus | Applications within 1 km, listed status, conservation areas, and extensions with no planning record |
| Noise, schools, sales and energy | Not its focus | Yes |
| Scores or advice | See Landmark’s sample report | No scores and no advice on whether to buy |
Checked October 2026 from public information. For what Landmark Homecheck includes and costs today, see Landmark Information Group's website. We aren't affiliated with Landmark Information Group. Spotted something out of date? Tell us.
Which to use
Landmark Homecheck fits when
- Your conveyancer or lender wants an environmental search for the purchase.
- You want a professional environmental risk assessment for a site with known issues.
HomeDueDiligence fits when
- You’re choosing between homes and want to check them before paying a solicitor or surveyor.
- You want flooding, planning, the ground, noise and the neighbourhood together, with questions to ask.
Many buyers use both: our report before the offer to decide, then the searches and survey before exchange.
Check a home now
Free to start with a postcode. See an example report · What's in a report