Feature by feature: the free GOV.UK check, our £19 instant data report, and the professional Groundsure Flood (£48.60) and Landmark Flood (£54) conveyancing searches. Everything below comes from the providers' own product pages and published sample reports, reviewed July 2026.
| What you get | GOV.UK free |
FloodRadar £19 |
Groundsure Flood £48.60 |
Landmark Flood £54 |
|---|---|---|---|---|
| Delivery | instant | instant | not stated | ~24 hours |
| Official flood-likelihood band | ✓ | ✓ | ✓ | ✓ |
| Assessment at the individual building | area only | ✓ map picker | ✓ building vs site | per-source, site level |
| Recorded flood history | — | ✓ outlines since 1946, distances | ✓ past flooding identified | ✓ historic events |
| Official warning record since 2006, year by year | — | ✓ | —* | —* |
| Live river levels from nearby gauges | — | ✓ | —* | —* |
| Monitored storm overflows nearby | — | ✓ | —* | —* |
| 2050s climate view | — | ✓ | separate product† | —* |
| Insurance angle | — | Flood Re rules outlook | FloodScore™ rating | insurability statement |
| Stays live after purchase (re-checks + free flood alerts) | re-run it anytime | ✓ permanent link | one-off PDF | PDF + online viewer |
| Professional opinion & recommendations | — | — | ✓ | ✓ |
| £10m professional-indemnity insurance | n/a | — | ✓ | ✓ |
| Law Society practice-note compliance | n/a | — | ✓ | ✓ |
| Expert review on higher-risk results | — | — | ✓ in-house consultants | ✓ Argyll flood expert |
| Money-back guarantee | n/a | 14 days | —* | —* |
* Not present in the provider's published sample report as reviewed in July 2026 — their full products may differ. † Groundsure's climate module (ClimateIndex) ships in their Avista report (£166.68 inc VAT), not in Groundsure Flood. Prices are published inc-VAT figures verified July 2026; Landmark Flood is sold through resellers and appears from £24 at some. All trade marks belong to their owners.
The amber rows are what the extra £30–£35 buys: a professional opinion with £10m of professional-indemnity insurance behind it, Law Society practice-note compliance, and a flood expert reviewing higher-risk results. If your conveyancer, lender or insurer needs a formal search document, that tier is the right purchase and this report is not a substitute for it.
The green column is what the data tier does that the professional tier doesn't attempt: in our July 2026 market check, no professional report we reviewed delivered instantly, charted the official warning record year by year, showed live river behaviour, or kept monitoring the postcode after purchase. Every one is a snapshot, posted or emailed once — ours re-checks the data every time you open your permanent link, and comes with free ongoing flood alerts.
Sequencing beats choosing, for most buyers: run the free GOV.UK check, read our £19 report before you offer, and commission the professional search through your conveyancer when the transaction gets real. Full price ladder here →
The fastest way to compare is to read one: open the complete 18-section sample report → (Groundsure and Landmark publish sample PDFs on their sites too — read theirs as well; that's what we did.)
Free preview first — the official band costs nothing. Full report £19, instant, no account needed, 14-day money-back guarantee.
No, and this page exists to make the difference plain. Groundsure Flood and Landmark Flood are professional conveyancing searches: a professional opinion, £10m professional-indemnity insurance behind it, Law Society practice-note compliance, and escalation to in-house consultants on higher-risk results. Ours is a data report: the same official datasets, compiled instantly for £19, readable before you even make an offer — with live river monitoring the professional tier does not attempt. Many buyers sensibly use both, at different stages.
Four things, and they matter in a conveyancing file: a professional opinion with recommendations, professional-indemnity insurance (£10m at both Groundsure and Landmark), Law Society practice-note compliance, and expert review of higher-risk results. If your conveyancer, lender or insurer needs a formal search document, buy one — this report is not a substitute.
In our July 2026 market check of the published sample reports: instant delivery (the professional tier is hours to days), the official flood-warning record since 2006 charted year by year, live river levels from gauges around the postcode, monitored storm overflows, and a report that stays live after purchase — re-checking the data on every visit, with free ongoing flood alerts. Every professional report we reviewed is a one-off snapshot.
Early or curious: the free GOV.UK check, plus our free preview. Serious about a specific property: the £19 data report — read the history before you offer. Conveyancing file: a professional search via your conveyancer (roughly £23–£112). A search that comes back "further action": the £195+ specialist appraisal tier.
More on flood reports: What's inside the £19 report · How much flood reports cost · Flood checks when buying a house · The free GOV.UK check, explained · Free flood-risk answers by postcode district
Competitor features and prices are drawn from the providers' own product pages and published sample reports, fetch-verified July 2026 (see each provider's site for the current product; full products may differ from published samples). All trade marks belong to their owners. FloodRadar's report is a data report, not a survey and not a professional conveyancing search. Data: Environment Agency, SEPA and Ordnance Survey / Royal Mail / ONS postcode data under the Open Government Licence v3.0. FloodRadar is not an emergency service — always follow official warnings.
