CB21 6 postcode sector in the CB21 district

CB21 6 is a sector of the CB21 district: every postcode that starts CB21 6. It has 57 postcodes in use, 9 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 CB21 6 sector, by gigabit broadband

Map of every postcode in the CB21 6 sector, by gigabit broadband Of the 57 postcodes in the CB21 6 sector that ONS places, 26 have no home or business that can get gigabit, 11 have some that can, 19 can all get it and 1 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 14 postcodes without gigabit; 7 postcodes without gigabit. Places named: Linton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A11A1307 CB21 6DP: no Ofcom figureCB21 6AA: gigabit for allCB21 6AE: gigabit for allCB21 6AG: gigabit for allCB21 6AP: gigabit for allCB21 6AQ: gigabit for allCB21 6AR: gigabit for allCB21 6AX: gigabit for allCB21 6BA: gigabit for allCB21 6BB: gigabit for allCB21 6BD: gigabit for allCB21 6BG: gigabit for allCB21 6BH: gigabit for allCB21 6BN: gigabit for allCB21 6BP: gigabit for allCB21 6BQ: gigabit for allCB21 6BX: gigabit for allCB21 6DJ: gigabit for allCB21 6DL: gigabit for allCB21 6DN: gigabit for allCB21 6AB: some gigabitCB21 6AF: some gigabitCB21 6AH: some gigabitCB21 6AN: some gigabitCB21 6AY: some gigabitCB21 6AZ: some gigabitCB21 6BE: some gigabitCB21 6BJ: some gigabitCB21 6BL: some gigabitCB21 6BS: some gigabitCB21 6XR: some gigabitCB21 6AD: no gigabitCB21 6AJ: no gigabitCB21 6AL: no gigabitCB21 6AS: no gigabitCB21 6AT: no gigabitCB21 6AU: no gigabitCB21 6AW: no gigabitCB21 6BT: no gigabitCB21 6BU: no gigabitCB21 6BW: no gigabitCB21 6BY: no gigabitCB21 6BZ: no gigabitCB21 6DA: no gigabitCB21 6DB: no gigabitCB21 6DD: no gigabitCB21 6DE: no gigabitCB21 6DF: no gigabitCB21 6DG: no gigabitCB21 6DH: no gigabitCB21 6DQ: no gigabitCB21 6GB: no gigabitCB21 6GH: no gigabitCB21 6GP: no gigabitCB21 6GQ: no gigabitCB21 6GS: no gigabitCB21 6GT: no gigabit Linton 14 postcodes without gigabit, outlined: this goes to CB21 6GH, the one nearest the middle of them14 postcodes without gigabit7 postcodes without gigabit, outlined: this goes to CB21 6BU, the one nearest the middle of them7 postcodes without gigabit Map of every postcode in the CB21 6 sector, by gigabit broadband Of the 57 postcodes in the CB21 6 sector that ONS places, 26 have no home or business that can get gigabit, 11 have some that can, 19 can all get it and 1 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 14 postcodes without gigabit; 7 postcodes without gigabit. Places named: Linton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Linton
  • No home or business can get gigabit: 26
  • Some can get gigabit: 11
  • Every home and business can get gigabit: 19
  • Ofcom gives no figure: 1
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 57 postcodes in the CB21 6 sector that ONS places, 26 have no home or business that can get gigabit, 11 have some that can, 19 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 350 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

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

CB21 6ADCB21 6AJCB21 6ALCB21 6ASCB21 6ATCB21 6AUCB21 6AWCB21 6BTCB21 6BUCB21 6BWCB21 6BYCB21 6BZ

Where the postcodes without gigabit lie together

  • 14 postcodes without gigabit, outlined on the map. CB21 6GH, is the one nearest the middle of them.
  • 7 postcodes without gigabit, outlined on the map. CB21 6BU, is the one nearest the middle of them.

What do homes sell for in CB21 6?

Homes in CB21 6 sold for a typical £715,000 in the 12 months to September 2026, across 13 sales, HM Land Registry's figures show. The 12 months before gave £545,000 from 22 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£715,000 typical price, the 12 months to September 2026
£545,000 12 months to September 2025
  • Detached £715,000 11 sales
  • Semi-detached 2 sales, too few to price

Standard sales of homes at market value at the postcodes that start CB21 6. 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 CB21 6

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.

CB21 6AACB21 6ABCB21 6ADCB21 6AECB21 6AFCB21 6AGCB21 6AHCB21 6AJCB21 6ALCB21 6ANCB21 6APCB21 6AQCB21 6ARCB21 6ASCB21 6ATCB21 6AUCB21 6AWCB21 6AXCB21 6AYCB21 6AZCB21 6BACB21 6BBCB21 6BDCB21 6BECB21 6BGCB21 6BHCB21 6BJCB21 6BLCB21 6BNCB21 6BPCB21 6BQCB21 6BSCB21 6BTCB21 6BUCB21 6BWCB21 6BXCB21 6BYCB21 6BZCB21 6DACB21 6DBCB21 6DDCB21 6DECB21 6DFCB21 6DGCB21 6DHCB21 6DJCB21 6DLCB21 6DNCB21 6DPCB21 6DQCB21 6GBCB21 6GHCB21 6GPCB21 6GQCB21 6GSCB21 6GTCB21 6XR

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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