CO3 8 postcode sector in the CO3 district

CO3 8 is a sector of the CO3 district: every postcode that starts CO3 8. It has 100 postcodes in use, one of them a large-user postcode. 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 CO3 8 sector, and which are new since 2020

Map of every postcode in the CO3 8 sector, by new since 2020 Of the 100 postcodes in the CO3 8 sector that ONS places, 11 are new since 2020 and 89 were in use before 2020. Places named: Marks Tey and Layer, Stanway. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A12 CO3 8AA: before 2020CO3 8AB: before 2020CO3 8AD: before 2020CO3 8AE: before 2020CO3 8AF: before 2020CO3 8AG: before 2020CO3 8AH: before 2020CO3 8AJ: before 2020CO3 8AL: before 2020CO3 8AN: before 2020CO3 8AP: before 2020CO3 8AQ: before 2020CO3 8AR: before 2020CO3 8AS: before 2020CO3 8AU: before 2020CO3 8AW: before 2020CO3 8AX: before 2020CO3 8AY: before 2020CO3 8AZ: before 2020CO3 8BA: before 2020CO3 8BB: before 2020CO3 8BD: before 2020CO3 8BE: before 2020CO3 8BG: before 2020CO3 8BJ: before 2020CO3 8BL: before 2020CO3 8BN: before 2020CO3 8BP: before 2020CO3 8BQ: before 2020CO3 8BS: before 2020CO3 8BT: before 2020CO3 8BU: before 2020CO3 8BW: before 2020CO3 8BX: before 2020CO3 8BY: before 2020CO3 8BZ: before 2020CO3 8DA: before 2020CO3 8DB: before 2020CO3 8DF: before 2020CO3 8DG: before 2020CO3 8DH: before 2020CO3 8DJ: before 2020CO3 8DL: before 2020CO3 8DN: before 2020CO3 8DP: before 2020CO3 8DQ: before 2020CO3 8DR: before 2020CO3 8LP: before 2020CO3 8LR: before 2020CO3 8LS: before 2020CO3 8LT: before 2020CO3 8LU: before 2020CO3 8LX: before 2020CO3 8LY: before 2020CO3 8LZ: before 2020CO3 8NA: before 2020CO3 8NB: before 2020CO3 8ND: before 2020CO3 8NE: before 2020CO3 8NF: before 2020CO3 8NG: before 2020CO3 8NQ: before 2020CO3 8NZ: before 2020CO3 8PA: before 2020CO3 8PB: before 2020CO3 8PD: before 2020CO3 8PH: before 2020CO3 8PN: before 2020CO3 8RG: before 2020CO3 8RH: before 2020CO3 8RJ: before 2020CO3 8RQ: before 2020CO3 8SS: before 2020CO3 8WA: before 2020CO3 8WB: before 2020CO3 8WD: before 2020CO3 8WH: before 2020CO3 8WL: before 2020CO3 8WN: before 2020CO3 8WP: before 2020CO3 8WQ: before 2020CO3 8WR: before 2020CO3 8WT: before 2020CO3 8WU: before 2020CO3 8WX: before 2020CO3 8WZ: before 2020CO3 8ZB: before 2020CO3 8ZD: before 2020CO3 8ZE: before 2020CO3 8DD: new since 2020CO3 8DE: new since 2020CO3 8DS: new since 2020CO3 8DT: new since 2020CO3 8DU: new since 2020CO3 8DW: new since 2020CO3 8DX: new since 2020CO3 8DY: new since 2020CO3 8PE: new since 2020CO3 8PF: new since 2020CO3 8RF: new since 2020 Marks Tey and LayerStanway Map of every postcode in the CO3 8 sector, by new since 2020 Of the 100 postcodes in the CO3 8 sector that ONS places, 11 are new since 2020 and 89 were in use before 2020. Places named: Marks Tey and Layer, Stanway. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A12A1124 Marks Tey and LayerStanway
  • New since 2020: 11
  • In use before 2020: 89

Of the 100 postcodes in the CO3 8 sector that ONS places, 11 are new since 2020 and 89 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 CO3 8?

Homes in CO3 8 sold for a typical £338,000 in the 12 months to August 2026, across 62 sales, down 3.4% on the 12 months before, HM Land Registry's figures show.

£338,000 typical price, the 12 months to August 2026
£350,000 12 months to August 2025
▼ down 3.4% on the 12 months before
  • Detached £400,000 22 sales
  • Semi-detached £322,500 24 sales
  • Terraced £325,000 7 sales
  • Flat or maisonette £170,000 9 sales

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 CO3 8. 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

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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