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Flood risk

You take an England long-term flood printout to a house in Wales. Why is that the wrong map for this purchase?

Because that printout is the GOV.UK long-term flood check for areas in England, and the house is in Wales. The check is not the map for Wales or for Scotland. Carrying the sheet across the border does not localise it. The service also does not say an individual property will flood, and it does not cover blocked drains or burst pipes. Ask the solicitor which flood information belongs to a Welsh purchase. Do not negotiate from the English printout.

Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.

What is the fuller explanation?

Border mistakes happen because the England service is easy to find and the postcode box still accepts an attempt. The page is titled for an area in England. A Welsh house needs the information that applies in Wales, which this printout is not. Even inside England, the check is an area view. It does not say this building will flood. It does not replace a conversation about surface water, rivers or reservoirs with a promise about one kitchen. Those limits stay true, and they still do not turn the page into Welsh guidance.

A home survey of the Welsh house is a different document again. It can describe what was seen on the day. It is not the England flood check, and a dry path does not stand in for the correct country's map. Do not tell the seller their price should move because an English sheet looked busy or quiet. Show your solicitor the address and the country first. If a flood search is needed, it should be the one they say fits this purchase. Filing the wrong PDF feels like diligence. It answers a house you are not buying.

What should you ask your surveyor?

  • Which country's service produced the printout you are holding?
  • Does any line on it claim to be a map for Wales?
  • What has the survey described on site that the printout cannot settle?

What are the typical next steps?

  1. Stop using the England flood check for the Welsh house.
  2. Ask the solicitor which flood information this purchase needs.
  3. Do not chip the price from the wrong country's sheet.

Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.

Also asked about this

Does the England check say this Welsh house will flood?

It does not say an individual property will flood, and it is not the map for Wales in any event.

Will it tell you about a blocked drain?

No. It does not cover blocked drains or burst pipes.

Sources