S11 9 postcode sector in the S11 district
S11 9 is a sector of the S11 district: every postcode that starts S11 9. It has 228 postcodes in use, one of them a large-user postcode. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.
Not sure what a sector is? UK postcode format explained.
Every postcode in the S11 9 sector, by flood risk
- A home or business at high risk: 7
- At medium risk at worst: 2
- At low risk at worst: 2
- At very low risk only: 0
- Not on the at-risk list: 217
Of the 228 postcodes in the S11 9 sector that ONS places, 7 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 217 are not on the Environment Agency's at-risk list.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Names in italics are council wards: we hold no town or village names here.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Environment Agency flood risk, published 6 July 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
The postcodes at high risk
Beside each: how many of its homes and businesses the Environment Agency puts at that risk.
What do homes sell for in S11 9?
Homes in S11 9 sold for a typical £479,250 in the 12 months to September 2026, across 114 sales, HM Land Registry's figures show. The 12 months before gave £510,000 from 157 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £658,000 43 sales
- Semi-detached £500,000 31 sales
- Terraced 3 sales, too few to price
- Flat or maisonette £201,000 37 sales
Each bar is that kind's typical price, against the most expensive kind here.
Standard sales of homes at market value at the postcodes that start S11 9. A typical price is the median, the middle sale, given from 5 sales or more.
How we work this out: house prices by postcodeSource: HM Land Registry Price Paid Data, files dated 28 October 2026.
Postcodes in S11 9
Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.
Other sectors in S11
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Environment Agency flood risk
- HM Land Registry Price Paid Data
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
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