SW1X 8 postcode sector in the SW1X district

SW1X 8 is a sector of the SW1X district: every postcode that starts SW1X 8. It has 124 postcodes in use, 20 of them large-user postcodes. 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 SW1X 8 sector, by flood risk

Map of every postcode in the SW1X 8 sector, by flood risk Of the 124 postcodes in the SW1X 8 sector that ONS places, 1 are at very low risk only and 123 are not on the Environment Agency's at-risk list. Places named: Knightsbridge & Belgravia. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3216A3217A3214A302 SW1X 8AA: not on the flood risk listSW1X 8AB: not on the flood risk listSW1X 8AD: not on the flood risk listSW1X 8AE: not on the flood risk listSW1X 8AF: not on the flood risk listSW1X 8AG: not on the flood risk listSW1X 8AH: not on the flood risk listSW1X 8AJ: not on the flood risk listSW1X 8AL: not on the flood risk listSW1X 8AQ: not on the flood risk listSW1X 8AR: not on the flood risk listSW1X 8AS: not on the flood risk listSW1X 8AT: not on the flood risk listSW1X 8AU: not on the flood risk listSW1X 8BA: not on the flood risk listSW1X 8BD: not on the flood risk listSW1X 8BL: not on the flood risk listSW1X 8BN: not on the flood risk listSW1X 8BP: not on the flood risk listSW1X 8BS: not on the flood risk listSW1X 8BT: not on the flood risk listSW1X 8BX: not on the flood risk listSW1X 8BY: not on the flood risk listSW1X 8BZ: not on the flood risk listSW1X 8DA: not on the flood risk listSW1X 8DB: not on the flood risk listSW1X 8DD: not on the flood risk listSW1X 8DE: not on the flood risk listSW1X 8DF: not on the flood risk listSW1X 8DH: not on the flood risk listSW1X 8DJ: not on the flood risk listSW1X 8DL: not on the flood risk listSW1X 8DN: not on the flood risk listSW1X 8DP: not on the flood risk listSW1X 8DR: not on the flood risk listSW1X 8DT: not on the flood risk listSW1X 8DW: not on the flood risk listSW1X 8EA: not on the flood risk listSW1X 8EB: not on the flood risk listSW1X 8ED: not on the flood risk listSW1X 8EE: not on the flood risk listSW1X 8EF: not on the flood risk listSW1X 8EG: not on the flood risk listSW1X 8EH: not on the flood risk listSW1X 8EJ: not on the flood risk listSW1X 8EL: not on the flood risk listSW1X 8EQ: not on the flood risk listSW1X 8ER: not on the flood risk listSW1X 8ES: not on the flood risk listSW1X 8ET: not on the flood risk listSW1X 8EW: not on the flood risk listSW1X 8EX: not on the flood risk listSW1X 8EY: not on the flood risk listSW1X 8GG: not on the flood risk listSW1X 8HB: not on the flood risk listSW1X 8HG: not on the flood risk listSW1X 8HJ: not on the flood risk listSW1X 8HN: not on the flood risk listSW1X 8HQ: not on the flood risk listSW1X 8HS: not on the flood risk listSW1X 8HT: not on the flood risk listSW1X 8HU: not on the flood risk listSW1X 8HW: not on the flood risk listSW1X 8JA: not on the flood risk listSW1X 8JE: not on the flood risk listSW1X 8JF: not on the flood risk listSW1X 8JG: not on the flood risk listSW1X 8JH: not on the flood risk listSW1X 8JJ: not on the flood risk listSW1X 8JL: not on the flood risk listSW1X 8JQ: not on the flood risk listSW1X 8JS: not on the flood risk listSW1X 8JT: not on the flood risk listSW1X 8JU: not on the flood risk listSW1X 8JZ: not on the flood risk listSW1X 8LA: not on the flood risk listSW1X 8LB: not on the flood risk listSW1X 8LH: not on the flood risk listSW1X 8LJ: not on the flood risk listSW1X 8LL: not on the flood risk listSW1X 8LN: not on the flood risk listSW1X 8LP: not on the flood risk listSW1X 8LS: not on the flood risk listSW1X 8LT: not on the flood risk listSW1X 8LU: not on the flood risk listSW1X 8LW: not on the flood risk listSW1X 8LY: not on the flood risk listSW1X 8LZ: not on the flood risk listSW1X 8ND: not on the flood risk listSW1X 8NE: not on the flood risk listSW1X 8NG: not on the flood risk listSW1X 8NJ: not on the flood risk listSW1X 8NQ: not on the flood risk listSW1X 8NS: not on the flood risk listSW1X 8NT: not on the flood risk listSW1X 8NX: not on the flood risk listSW1X 8PA: not on the flood risk listSW1X 8PG: not on the flood risk listSW1X 8PH: not on the flood risk listSW1X 8PN: not on the flood risk listSW1X 8PP: not on the flood risk listSW1X 8PQ: not on the flood risk listSW1X 8PS: not on the flood risk listSW1X 8PZ: not on the flood risk listSW1X 8QA: not on the flood risk listSW1X 8QB: not on the flood risk listSW1X 8QD: not on the flood risk listSW1X 8QR: not on the flood risk listSW1X 8QS: not on the flood risk listSW1X 8QT: not on the flood risk listSW1X 8QZ: not on the flood risk listSW1X 8RL: not on the flood risk listSW1X 8RN: not on the flood risk listSW1X 8RR: not on the flood risk listSW1X 8RS: not on the flood risk listSW1X 8RX: not on the flood risk listSW1X 8SA: not on the flood risk listSW1X 8SB: not on the flood risk listSW1X 8SD: not on the flood risk listSW1X 8SH: not on the flood risk listSW1X 8SP: not on the flood risk listSW1X 8BU: very low flood risk only Knightsbridge & Belgravia Map of every postcode in the SW1X 8 sector, by flood risk Of the 124 postcodes in the SW1X 8 sector that ONS places, 1 are at very low risk only and 123 are not on the Environment Agency's at-risk list. Places named: Knightsbridge & Belgravia. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3216A3217 Knightsbridge & Belgravia
  • 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: 1
  • Not on the at-risk list: 123

Of the 124 postcodes in the SW1X 8 sector that ONS places, 1 are at very low risk only and 123 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. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: 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. How we use them

What do homes sell for in SW1X 8?

Homes in SW1X 8 sold for a typical £2,400,000 in the 12 months to August 2026, across 13 sales, down 7.8% on the 12 months before, HM Land Registry's figures show.

£2,400,000 typical price, the 12 months to August 2026
£2,603,616 12 months to August 2025
▼ down 7.8% on the 12 months before
  • Terraced £2,880,000 8 sales
  • Flat or maisonette £2,400,000 5 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 SW1X 8. 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 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

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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