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 gigabit broadband

Map of every postcode in the SE21 7 sector, by gigabit broadband Of the 92 postcodes in the SE21 7 sector that ONS places, 25 have no home or business that can get gigabit, 16 have some that can, 50 can all get it and 1 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 8 postcodes without gigabit; 5 postcodes without gigabit. Places named: Dulwich Village, Dulwich Wood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A205A2216 SE21 7AE: no Ofcom figureSE21 7AA: gigabit for allSE21 7AJ: gigabit for allSE21 7AN: gigabit for allSE21 7AP: gigabit for allSE21 7AQ: gigabit for allSE21 7AU: gigabit for allSE21 7AW: gigabit for allSE21 7BE: gigabit for allSE21 7BH: gigabit for allSE21 7BJ: gigabit for allSE21 7BN: gigabit for allSE21 7BP: gigabit for allSE21 7BS: gigabit for allSE21 7BT: gigabit for allSE21 7BU: gigabit for allSE21 7DE: gigabit for allSE21 7DF: gigabit for allSE21 7DG: gigabit for allSE21 7DH: gigabit for allSE21 7DJ: gigabit for allSE21 7DL: gigabit for allSE21 7DN: gigabit for allSE21 7DP: gigabit for allSE21 7DQ: gigabit for allSE21 7DR: gigabit for allSE21 7DW: gigabit for allSE21 7DZ: gigabit for allSE21 7EA: gigabit for allSE21 7EB: gigabit for allSE21 7ED: gigabit for allSE21 7EE: gigabit for allSE21 7EF: gigabit for allSE21 7EG: gigabit for allSE21 7EW: gigabit for allSE21 7HN: gigabit for allSE21 7HP: gigabit for allSE21 7HW: gigabit for allSE21 7JA: gigabit for allSE21 7JB: gigabit for allSE21 7JN: gigabit for allSE21 7JR: gigabit for allSE21 7JW: gigabit for allSE21 7JZ: gigabit for allSE21 7LF: gigabit for allSE21 7LS: gigabit for allSE21 7LT: gigabit for allSE21 7LU: gigabit for allSE21 7LX: gigabit for allSE21 7LZ: gigabit for allSE21 7NA: gigabit for allSE21 7AB: some gigabitSE21 7AD: some gigabitSE21 7AL: some gigabitSE21 7AR: some gigabitSE21 7AS: some gigabitSE21 7BA: some gigabitSE21 7BQ: some gigabitSE21 7BX: some gigabitSE21 7EX: some gigabitSE21 7HJ: some gigabitSE21 7HR: some gigabitSE21 7JH: some gigabitSE21 7JL: some gigabitSE21 7JS: some gigabitSE21 7LY: some gigabitSE21 7ND: some gigabitSE21 7AF: no gigabitSE21 7AG: no gigabitSE21 7BB: no gigabitSE21 7BD: no gigabitSE21 7BG: no gigabitSE21 7EP: no gigabitSE21 7ER: no gigabitSE21 7ES: no gigabitSE21 7ET: no gigabitSE21 7EU: no gigabitSE21 7EY: no gigabitSE21 7EZ: no gigabitSE21 7HA: no gigabitSE21 7HH: no gigabitSE21 7HL: no gigabitSE21 7JJ: no gigabitSE21 7JP: no gigabitSE21 7JT: no gigabitSE21 7JU: no gigabitSE21 7LD: no gigabitSE21 7LE: no gigabitSE21 7LG: no gigabitSE21 7LH: no gigabitSE21 7LJ: no gigabitSE21 7NB: no gigabit Dulwich VillageDulwich Wood 8 postcodes without gigabit, outlined: this goes to SE21 7BB, the one nearest the middle of them8 postcodes without gigabit5 postcodes without gigabit, outlined: this goes to SE21 7JU, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in the SE21 7 sector, by gigabit broadband Of the 92 postcodes in the SE21 7 sector that ONS places, 25 have no home or business that can get gigabit, 16 have some that can, 50 can all get it and 1 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 8 postcodes without gigabit; 5 postcodes without gigabit. 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 8 postcodes without gigabit, outlined: this goes to SE21 7BB, the one nearest the middle of them8 postcodes without gigabit
  • No home or business can get gigabit: 25
  • Some can get gigabit: 16
  • Every home and business can get gigabit: 50
  • Ofcom gives no figure: 1
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 92 postcodes in the SE21 7 sector that ONS places, 25 have no home or business that can get gigabit, 16 have some that can, 50 can all get it and 1 have no Ofcom figure.

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. A dashed outline shows where 5 or more lie within 180 metres of each other. It is not a boundary, and 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; Ofcom Connected Nations, Connected Nations, Spring 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.

Postcodes without gigabit

25 postcodes here have no gigabit. These are the 12 first in postcode order.

Where the postcodes without gigabit lie together

What do homes sell for in SE21 7?

Homes in SE21 7 sold for a typical £1,700,000 in the 12 months to September 2026, across 23 sales, HM Land Registry's figures show. The 12 months before gave £1,562,500 from 36 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£1,700,000 typical price, the 12 months to September 2026
£1,562,500 12 months to September 2025
  • Detached £2,000,000 6 sales
  • Semi-detached £2,007,551 10 sales
  • Terraced £1,390,000 5 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 October 2026.

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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