S21 5 postcode sector in the S21 district

S21 5 is a sector of the S21 district: every postcode that starts S21 5. It has 24 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the S21 5 sector, by flood risk

Map of every postcode in the S21 5 sector, by flood risk Of the 24 postcodes in the S21 5 sector that ONS places, 24 are not on the Environment Agency's at-risk list. Places named: Ridgeway & Marsh Lane, Unstone. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. S21 5AB: not on the flood risk listS21 5AD: not on the flood risk listS21 5RA: not on the flood risk listS21 5RB: not on the flood risk listS21 5RD: not on the flood risk listS21 5RE: not on the flood risk listS21 5RF: not on the flood risk listS21 5RG: not on the flood risk listS21 5RH: not on the flood risk listS21 5RL: not on the flood risk listS21 5RN: not on the flood risk listS21 5RP: not on the flood risk listS21 5RQ: not on the flood risk listS21 5RR: not on the flood risk listS21 5RS: not on the flood risk listS21 5RT: not on the flood risk listS21 5RU: not on the flood risk listS21 5RW: not on the flood risk listS21 5RX: not on the flood risk listS21 5RY: not on the flood risk listS21 5RZ: not on the flood risk listS21 5SA: not on the flood risk listS21 5SB: not on the flood risk listS21 5SD: not on the flood risk list Ridgeway & Marsh LaneUnstone Map of every postcode in the S21 5 sector, by flood risk Of the 24 postcodes in the S21 5 sector that ONS places, 24 are not on the Environment Agency's at-risk list. Places named: Ridgeway & Marsh Lane, Unstone. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Ridgeway & Marsh LaneUnstone
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 24

Of the 24 postcodes in the S21 5 sector that ONS places, 24 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.

What do homes sell for in S21 5?

Homes in S21 5 sold for a typical £306,500 in the 12 months to September 2026, across 12 sales, HM Land Registry's figures show. The 12 months before gave £380,000 from 9 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£306,500 typical price, the 12 months to September 2026
£380,000 12 months to September 2025
  • Detached 4 sales, too few to price
  • Semi-detached £300,000 5 sales
  • Terraced 3 sales, too few to price

Standard sales of homes at market value at the postcodes that start S21 5. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 October 2026.

Postcodes in S21 5

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.

S21 5ABS21 5ADS21 5RAS21 5RBS21 5RDS21 5RES21 5RFS21 5RGS21 5RHS21 5RLS21 5RNS21 5RPS21 5RQS21 5RRS21 5RSS21 5RTS21 5RUS21 5RWS21 5RXS21 5RYS21 5RZS21 5SAS21 5SBS21 5SD

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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Where the facts on this page come from

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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