购房前如何理解洪水风险
先查官方地址周边结果，再逐项看不同洪水来源。高风险代表每年概率高于 3.3%，极低风险则低于 0.1%。
洪水可来自河流、海水、地表水、水库及地下水。某一来源风险低，不代表其他来源也低。
英格兰最新全国评估显示，截至 2025-03-31，约 6.3 百万个住宅及商业房产位于有洪水风险的地区。
风险等级
四个等级描述房产周边地区每年的洪水概率。高风险高于 3.3%，中风险为 1% 至 3.3%，低风险为 0.1% 至 1%，极低风险则低于 0.1%。
- Band count
- 4
- High min %
- 3.3
- Low min %
- 0.1
- Medium min %
- 1.0
- Very low max %
- 0.1
Environment Agency flood and coastal erosion risk management report. 2024 to 2025 report, published 2026. 提取日期 2026-08-03.
How this was counted
Postcode district. official annual-likelihood categories for areas around properties.
应查什么
使用地址周边服务查看所有可用来源。如地图或卖方资料显示疑点，可索取洪水记录，并比较该房产可获得的楼宇保险条款。
- Source count
- 4
- Sources
- rivers and sea, surface water, reservoirs, groundwater where available
Environment Agency Check the long term flood risk service. live service verified 2026-08-03. 提取日期 2026-08-03.
How this was counted
Postcode district. sources listed by the address-area checking service.
全国概况
6.3 百万是全国背景数字。购房时应以地址结果及楼宇结构为主。
- As at
- 2025-03-31
- Homes and businesses million
- 6.3
Environment Agency flood and coastal erosion risk management report. 2024 to 2025 report, published 2026. 提取日期 2026-08-03.
How this was counted
Postcode district. new National Flood Risk Assessment estimate for England.
Sources and method
- Environment Agency flood and coastal erosion risk management report. 2024 to 2025 report, published 2026. 提取日期 2026-08-03.
- Environment Agency Check the long term flood risk service. live service verified 2026-08-03. 提取日期 2026-08-03.
如需指定地址的桌面核查，Property Diligence 付费报告会加入公开来源可提供的房产层级详细资料。