SE21 7 postcode sector in the SE21 district

SE21 7 is a sector of the SE21 district: every postcode that starts SE21 7. It has 92 postcodes in use, 3 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 SE21 7 sector, by flood risk

Map of every postcode in the SE21 7 sector, by flood risk Of the 92 postcodes in the SE21 7 sector that ONS places, 92 are not on the Environment Agency's at-risk list. Places named: Dulwich Village, Dulwich Wood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A2199A205A2216 SE21 7AA: not on the flood risk listSE21 7AB: not on the flood risk listSE21 7AD: not on the flood risk listSE21 7AE: not on the flood risk listSE21 7AF: not on the flood risk listSE21 7AG: not on the flood risk listSE21 7AJ: not on the flood risk listSE21 7AL: not on the flood risk listSE21 7AN: not on the flood risk listSE21 7AP: not on the flood risk listSE21 7AQ: not on the flood risk listSE21 7AR: not on the flood risk listSE21 7AS: not on the flood risk listSE21 7AU: not on the flood risk listSE21 7AW: not on the flood risk listSE21 7BA: not on the flood risk listSE21 7BB: not on the flood risk listSE21 7BD: not on the flood risk listSE21 7BE: not on the flood risk listSE21 7BG: not on the flood risk listSE21 7BH: not on the flood risk listSE21 7BJ: not on the flood risk listSE21 7BN: not on the flood risk listSE21 7BP: not on the flood risk listSE21 7BQ: not on the flood risk listSE21 7BS: not on the flood risk listSE21 7BT: not on the flood risk listSE21 7BU: not on the flood risk listSE21 7BX: not on the flood risk listSE21 7DE: not on the flood risk listSE21 7DF: not on the flood risk listSE21 7DG: not on the flood risk listSE21 7DH: not on the flood risk listSE21 7DJ: not on the flood risk listSE21 7DL: not on the flood risk listSE21 7DN: not on the flood risk listSE21 7DP: not on the flood risk listSE21 7DQ: not on the flood risk listSE21 7DR: not on the flood risk listSE21 7DW: not on the flood risk listSE21 7DZ: not on the flood risk listSE21 7EA: not on the flood risk listSE21 7EB: not on the flood risk listSE21 7ED: not on the flood risk listSE21 7EE: not on the flood risk listSE21 7EF: not on the flood risk listSE21 7EG: not on the flood risk listSE21 7EP: not on the flood risk listSE21 7ER: not on the flood risk listSE21 7ES: not on the flood risk listSE21 7ET: not on the flood risk listSE21 7EU: not on the flood risk listSE21 7EW: not on the flood risk listSE21 7EX: not on the flood risk listSE21 7EY: not on the flood risk listSE21 7EZ: not on the flood risk listSE21 7HA: not on the flood risk listSE21 7HH: not on the flood risk listSE21 7HJ: not on the flood risk listSE21 7HL: not on the flood risk listSE21 7HN: not on the flood risk listSE21 7HP: not on the flood risk listSE21 7HR: not on the flood risk listSE21 7HW: not on the flood risk listSE21 7JA: not on the flood risk listSE21 7JB: not on the flood risk listSE21 7JH: not on the flood risk listSE21 7JJ: not on the flood risk listSE21 7JL: not on the flood risk listSE21 7JN: not on the flood risk listSE21 7JP: not on the flood risk listSE21 7JR: not on the flood risk listSE21 7JS: not on the flood risk listSE21 7JT: not on the flood risk listSE21 7JU: not on the flood risk listSE21 7JW: not on the flood risk listSE21 7JZ: not on the flood risk listSE21 7LD: not on the flood risk listSE21 7LE: not on the flood risk listSE21 7LF: not on the flood risk listSE21 7LG: not on the flood risk listSE21 7LH: not on the flood risk listSE21 7LJ: not on the flood risk listSE21 7LS: not on the flood risk listSE21 7LT: not on the flood risk listSE21 7LU: not on the flood risk listSE21 7LX: not on the flood risk listSE21 7LY: not on the flood risk listSE21 7LZ: not on the flood risk listSE21 7NA: not on the flood risk listSE21 7NB: not on the flood risk listSE21 7ND: not on the flood risk list Dulwich VillageDulwich Wood Map of every postcode in the SE21 7 sector, by flood risk Of the 92 postcodes in the SE21 7 sector that ONS places, 92 are not on the Environment Agency's at-risk list. Places named: Dulwich Village, Dulwich Wood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Dulwich VillageDulwich Wood
  • 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: 92

Of the 92 postcodes in the SE21 7 sector that ONS places, 92 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.

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 SE21 7?

Homes in SE21 7 sold for a typical £1,775,000 in the 12 months to August 2026, across 22 sales, up 14.5% on the 12 months before, HM Land Registry's figures show.

£1,775,000 typical price, the 12 months to August 2026
£1,550,000 12 months to August 2025
▲ up 14.5% on the 12 months before
  • Detached £2,150,000 5 sales
  • Semi-detached £2,100,000 9 sales
  • Terraced £1,320,000 6 sales
  • Flat or maisonette 2 sales, too few to price

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 SE21 7. 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

Postcodes in SE21 7

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.

SE21 7AASE21 7ABSE21 7ADSE21 7AESE21 7AFSE21 7AGSE21 7AJSE21 7ALSE21 7ANSE21 7APSE21 7AQSE21 7ARSE21 7ASSE21 7AUSE21 7AWSE21 7BASE21 7BBSE21 7BDSE21 7BESE21 7BGSE21 7BHSE21 7BJSE21 7BNSE21 7BPSE21 7BQSE21 7BSSE21 7BTSE21 7BUSE21 7BXSE21 7DESE21 7DFSE21 7DGSE21 7DHSE21 7DJSE21 7DLSE21 7DNSE21 7DPSE21 7DQSE21 7DRSE21 7DWSE21 7DZSE21 7EASE21 7EBSE21 7EDSE21 7EESE21 7EFSE21 7EGSE21 7EPSE21 7ERSE21 7ESSE21 7ETSE21 7EUSE21 7EWSE21 7EXSE21 7EYSE21 7EZSE21 7HASE21 7HHSE21 7HJSE21 7HLSE21 7HNSE21 7HPSE21 7HRSE21 7HWSE21 7JASE21 7JBSE21 7JHSE21 7JJSE21 7JLSE21 7JNSE21 7JPSE21 7JRSE21 7JSSE21 7JTSE21 7JUSE21 7JWSE21 7JZSE21 7LDSE21 7LESE21 7LFSE21 7LGSE21 7LHSE21 7LJSE21 7LSSE21 7LTSE21 7LUSE21 7LXSE21 7LYSE21 7LZSE21 7NASE21 7NBSE21 7ND

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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