CM6 4 postcode sector in the CM6 district

CM6 4 is a sector of the CM6 district: every postcode that starts CM6 4. It has 61 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CM6 4 sector, by gigabit broadband

Map of every postcode in the CM6 4 sector, by gigabit broadband Of the 61 postcodes in the CM6 4 sector that ONS places, 1 have some that can, 29 can all get it and 31 have no Ofcom figure. Places named: Great Dunmow. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A120 CM6 4AT: no Ofcom figureCM6 4AU: no Ofcom figureCM6 4BE: no Ofcom figureCM6 4DD: no Ofcom figureCM6 4DH: no Ofcom figureCM6 4EG: no Ofcom figureCM6 4FB: no Ofcom figureCM6 4FD: no Ofcom figureCM6 4FE: no Ofcom figureCM6 4FF: no Ofcom figureCM6 4FG: no Ofcom figureCM6 4FJ: no Ofcom figureCM6 4FU: no Ofcom figureCM6 4FY: no Ofcom figureCM6 4FZ: no Ofcom figureCM6 4GD: no Ofcom figureCM6 4GE: no Ofcom figureCM6 4GF: no Ofcom figureCM6 4GG: no Ofcom figureCM6 4GH: no Ofcom figureCM6 4GL: no Ofcom figureCM6 4GR: no Ofcom figureCM6 4GU: no Ofcom figureCM6 4GX: no Ofcom figureCM6 4GY: no Ofcom figureCM6 4HA: no Ofcom figureCM6 4HF: no Ofcom figureCM6 4HX: no Ofcom figureCM6 4JF: no Ofcom figureCM6 4JG: no Ofcom figureCM6 4AA: gigabit for allCM6 4AB: gigabit for allCM6 4AD: gigabit for allCM6 4AE: gigabit for allCM6 4AF: gigabit for allCM6 4AG: gigabit for allCM6 4AH: gigabit for allCM6 4AJ: gigabit for allCM6 4AL: gigabit for allCM6 4AN: gigabit for allCM6 4AP: gigabit for allCM6 4AQ: gigabit for allCM6 4AR: gigabit for allCM6 4AS: gigabit for allCM6 4BD: gigabit for allCM6 4BF: gigabit for allCM6 4BG: gigabit for allCM6 4DF: gigabit for allCM6 4FA: gigabit for allCM6 4FN: gigabit for allCM6 4FP: gigabit for allCM6 4FQ: gigabit for allCM6 4FT: gigabit for allCM6 4FW: gigabit for allCM6 4GA: gigabit for allCM6 4GB: gigabit for allCM6 4GS: gigabit for allCM6 4GT: gigabit for allCM6 4GW: gigabit for allCM6 4BR: some gigabit Great Dunmow Map of every postcode in the CM6 4 sector, by gigabit broadband Of the 61 postcodes in the CM6 4 sector that ONS places, 1 have some that can, 29 can all get it and 31 have no Ofcom figure. Places named: Great Dunmow. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A120 Great Dunmow
  • No home or business can get gigabit: 0
  • Some can get gigabit: 1
  • Every home and business can get gigabit: 29
  • Ofcom gives no figure: 31

Of the 61 postcodes in the CM6 4 sector that ONS places, 1 have some that can, 29 can all get it and 31 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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

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.

What do homes sell for in CM6 4?

Homes in CM6 4 sold for a typical £450,000 in the 12 months to September 2026, across 36 sales, HM Land Registry's figures show. The 12 months before gave £464,995 from 129 sales: not a change larger than chance would explain, given which homes happened to sell.

£450,000 typical price, the 12 months to September 2026
£464,995 12 months to September 2025
  • Detached £510,000 23 sales
  • Semi-detached £402,500 10 sales
  • Terraced 3 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 CM6 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.

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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