CB23 4 postcode sector in the CB23 district

CB23 4 is a sector of the CB23 district: every postcode that starts CB23 4. It has 62 postcodes in use, 2 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 CB23 4 sector, by gigabit broadband

Map of every postcode in the CB23 4 sector, by gigabit broadband Of the 62 postcodes in the CB23 4 sector that ONS places, 18 have no home or business that can get gigabit, 17 have some that can, 23 can all get it and 4 have no Ofcom figure. One group of postcodes without gigabit is outlined: 5 postcodes without gigabit. Places named: Caxton & Papworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A428A14 CB23 4AB: no Ofcom figureCB23 4GG: no Ofcom figureCB23 4LU: no Ofcom figureCB23 4GB: gigabit for allCB23 4HT: gigabit for allCB23 4JA: gigabit for allCB23 4JF: gigabit for allCB23 4JH: gigabit for allCB23 4JJ: gigabit for allCB23 4JN: gigabit for allCB23 4JP: gigabit for allCB23 4JR: gigabit for allCB23 4JT: gigabit for allCB23 4JX: gigabit for allCB23 4JY: gigabit for allCB23 4LJ: gigabit for allCB23 4LL: gigabit for allCB23 4LS: gigabit for allCB23 4LY: gigabit for allCB23 4NA: gigabit for allCB23 4NB: gigabit for allCB23 4NE: gigabit for allCB23 4NF: gigabit for allCB23 4NJ: gigabit for allCB23 4NQ: gigabit for allCB23 4NT: gigabit for allCB23 4HU: some gigabitCB23 4HX: some gigabitCB23 4HY: some gigabitCB23 4HZ: some gigabitCB23 4JB: some gigabitCB23 4JD: some gigabitCB23 4JE: some gigabitCB23 4JG: some gigabitCB23 4JL: some gigabitCB23 4JQ: some gigabitCB23 4JS: some gigabitCB23 4LB: some gigabitCB23 4LX: some gigabitCB23 4LZ: some gigabitCB23 4ND: some gigabitCB23 4NG: some gigabitCB23 4WU: some gigabitCB23 4EY: no gigabitCB23 4HS: no gigabitCB23 4JU: no gigabitCB23 4JZ: no gigabitCB23 4LA: no gigabitCB23 4LN: no gigabitCB23 4LP: no gigabitCB23 4LR: no gigabitCB23 4LT: no gigabitCB23 4LW: no gigabitCB23 4NH: no gigabitCB23 4NL: no gigabitCB23 4NN: no gigabitCB23 4NP: no gigabitCB23 4NR: no gigabitCB23 4NS: no gigabitCB23 4NU: no gigabitCB23 4NW: no gigabit Caxton & Papworth 5 postcodes without gigabit, outlined: this goes to CB23 4LP, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in the CB23 4 sector, by gigabit broadband Of the 62 postcodes in the CB23 4 sector that ONS places, 18 have no home or business that can get gigabit, 17 have some that can, 23 can all get it and 4 have no Ofcom figure. One group of postcodes without gigabit is outlined: 5 postcodes without gigabit. Places named: Caxton & Papworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. Caxton & Papworth 5 postcodes without gigabit, outlined: this goes to CB23 4LP, the one nearest the middle of them5 postcodes without gigabit
  • No home or business can get gigabit: 18
  • Some can get gigabit: 17
  • Every home and business can get gigabit: 23
  • Ofcom gives no figure: 4
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 62 postcodes in the CB23 4 sector that ONS places, 18 have no home or business that can get gigabit, 17 have some that can, 23 can all get it and 4 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 560 metres of each other. It is not a boundary, and 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.

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

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

CB23 4EYCB23 4HSCB23 4JUCB23 4JZCB23 4LACB23 4LNCB23 4LPCB23 4LRCB23 4LTCB23 4LWCB23 4NHCB23 4NL

Where the postcodes without gigabit lie together

  • 5 postcodes without gigabit, outlined on the map. CB23 4LP, is the one nearest the middle of them.

What do homes sell for in CB23 4?

Homes in CB23 4 sold for a typical £400,000 in the 12 months to September 2026, across 8 sales, HM Land Registry's figures show. The 12 months before gave £615,000 from 15 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£400,000 typical price, the 12 months to September 2026
£615,000 12 months to September 2025
  • Detached £410,000 6 sales
  • Semi-detached 2 sales, too few to price

Standard sales of homes at market value at the postcodes that start CB23 4. 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 CB23 4

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.

CB23 4ABCB23 4EYCB23 4GBCB23 4GGCB23 4HSCB23 4HTCB23 4HUCB23 4HXCB23 4HYCB23 4HZCB23 4JACB23 4JBCB23 4JDCB23 4JECB23 4JFCB23 4JGCB23 4JHCB23 4JJCB23 4JLCB23 4JNCB23 4JPCB23 4JQCB23 4JRCB23 4JSCB23 4JTCB23 4JUCB23 4JXCB23 4JYCB23 4JZCB23 4LACB23 4LBCB23 4LJCB23 4LLCB23 4LNCB23 4LPCB23 4LRCB23 4LSCB23 4LTCB23 4LUCB23 4LWCB23 4LXCB23 4LYCB23 4LZCB23 4NACB23 4NBCB23 4NDCB23 4NECB23 4NFCB23 4NGCB23 4NHCB23 4NJCB23 4NLCB23 4NNCB23 4NPCB23 4NQCB23 4NRCB23 4NSCB23 4NTCB23 4NUCB23 4NWCB23 4WBCB23 4WU

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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