How to check if a house has flooded before (England)
A flood map tells you how likely an area is to flood. It does not tell you whether the house you like has actually had water through the door. This guide covers that second question: how to find out a property's flood history in England, what the seller has to tell you, and what to look for when you visit.
Flood risk and flood history are different questions
Flood risk is a forecast. The GOV.UK service "Check the long term flood risk for an area in England" rates rivers and the sea and surface water as high, medium, low or very low, and covers reservoirs and groundwater where data exists. GOV.UK is clear that it does not tell you how likely it is that an individual property will flood. Our guide to flood risk before you book a viewing explains how to read those maps.
Flood history is a record of what has already happened. A house in a low-risk area can still have flooded from a blocked drain or a burst pipe, which the long term service does not cover. You want both pieces before you commit.
Step 1: ask the seller, then get it in writing
Ask the agent early, ideally before the viewing: has any part of the property, including the garden, ever flooded? If so, when, from what, and what was done?
Later, the seller completes the Law Society's TA6 Property Information Form for the solicitors. The current version is the 6th edition, which replaced the 4th and 5th editions on 30 March 2026. Its environmental section covers flooding. The Law Society's notes define flooding broadly, as "any case where land not normally covered by water becomes covered by water", and list the common types: surface water, groundwater, river, coastal and sewer flooding.
Compare what the agent told you with what the seller writes on the form. If they differ, ask your solicitor to raise it.
Step 2: request a flood history report from the Environment Agency
This is the step most buyers do not know about. GOV.UK explains that you can request the flood history for the area around an address or postcode in England by emailing the Environment Agency at enquiries@environment-agency.gov.uk with the full address and postcode. If you do not know the postcode, you can send a map instead.
GOV.UK says the report is sent by email within 20 working days, and that there may be a fee depending on how long it takes to produce. Two limits are worth knowing. The Environment Agency says it does not have flood records for all areas. And a report covers the area around the address, so it can show that a street flooded without saying whether water got inside your house.
Because it can take up to four weeks, send the request as soon as a house makes your shortlist.
Step 3: ask the council and check the Environment Agency's flood records
GOV.UK also points you to your lead local flood authority (your county or unitary council) and, where there is one, the Internal Drainage Board. Councils deal with local flooding from surface water, groundwater and ordinary watercourses, and some publish investigation reports after significant floods. Search the council's website for "flood investigation" and the street or village name.
The Environment Agency also publishes its Recorded Flood Outlines as open data on data.gov.uk, covering flooding from rivers, the sea, groundwater and surface water, with records going back to 1946. Its own notes add two caveats: an area with no outline may still have flooded, and an outline shows land that flooded, not homes flooded inside.
Step 4: get a buildings insurance quote for the address
Before you exchange, get buildings quotes from two or three insurers for the exact address. Insurers tend to ask about past flooding, and the price and terms show how they view the property. The Law Society's notes advise buyers to arrange insurance from exchange, which also lets you check the home can be insured on normal terms before you are committed.
If the house was built before 1 January 2009, it may be eligible for the Flood Re scheme, which helps insurers offer flood cover for eligible homes. Flood Re publishes the full eligibility criteria on its website.
Do sellers have to tell you if a house has flooded?
The general rule in English house sales is "buyer beware", so a seller does not have to volunteer every problem. But if they answer a question, the answer has to be honest. The Law Society's notes for the TA6 say buyers can rely on the answers, that misleading information may allow a buyer to claim compensation after completion, and that a seller who does not know an answer must say so.
Estate agents have their own duties. Consumer protection law (since April 2025, the Digital Markets, Competition and Consumers Act 2024) says traders must not leave out material information that an average buyer needs to make a decision.
So ask the question directly, get the answer in writing, and if the form says "not known", ask your solicitor what further enquiries make sense. This is general information, not legal advice.
What to look for at the viewing
None of these prove anything on their own, but they are good prompts for questions:
- fresh plaster or new skirting along the bottom of ground-floor walls
- flood doors, removable barriers or covers for air bricks
- electrical sockets set unusually high on the ground floor
- a garden or driveway that slopes towards the house
- neighbours. If you see one outside, ask whether the street has flooded.
If you go ahead, share your notes with your surveyor. Our guide to property reports versus RICS surveys explains when to book one.
Worked example (illustrative)
This is an illustrative example. It is not a real address and uses no real data.
You find a 1930s semi near a small river. Before booking a viewing you check the long term flood risk service: the river and sea rating is low, but surface water is shown as medium at the end of the street. You email the Environment Agency for a flood history report the same evening.
At the viewing the agent says the house has never flooded. You notice the driveway slopes towards the front door.
Three weeks later the Environment Agency report arrives. It records surface water flooding on the street some years earlier, but says nothing about individual homes. You now have a specific question for the seller ("did water reach the house during that event?"), you ask your solicitor to raise it against the TA6 answers, and you get insurance quotes before exchange. If the answers and the quotes come back normal, you carry on with your eyes open. If they do not, you have found out before paying for a survey.
Where Habifact fits
A Habifact report puts the mapped flood risk for the address (river and sea, and surface water) next to sold prices, planning, the EPC, schools, broadband and transport, before you book a viewing. Mapping is not a record of whether the house has flooded, so the report points you to the right questions rather than answering this one. See a sample report, our checklist for what to check before viewing a house, or common questions.
Habifact is not a survey, valuation, conveyancing search, or legal, insurance or planning advice.
Sources
See a sample Pre-Visit report