CF3 1 postcode sector in the CF3 district

CF3 1 is a sector of the CF3 district: every postcode that starts CF3 1. It has 88 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 CF3 1 sector, and which are new since 2020

Map of every postcode in the CF3 1 sector, by new since 2020 Of the 88 postcodes in the CF3 1 sector that ONS places, 88 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Trowbridge, Rumney. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. CF3 1AB: before 2020CF3 1DW: before 2020CF3 1DX: before 2020CF3 1DZ: before 2020CF3 1EY: before 2020CF3 1NP: before 2020CF3 1NR: before 2020CF3 1NT: before 2020CF3 1PZ: before 2020CF3 1QA: before 2020CF3 1QB: before 2020CF3 1QD: before 2020CF3 1QE: before 2020CF3 1QF: before 2020CF3 1QG: before 2020CF3 1QH: before 2020CF3 1QJ: before 2020CF3 1QL: before 2020CF3 1QN: before 2020CF3 1QQ: before 2020CF3 1QR: before 2020CF3 1QS: before 2020CF3 1QT: before 2020CF3 1QU: before 2020CF3 1QW: before 2020CF3 1QX: before 2020CF3 1QY: before 2020CF3 1QZ: before 2020CF3 1RA: before 2020CF3 1RB: before 2020CF3 1RD: before 2020CF3 1RE: before 2020CF3 1RF: before 2020CF3 1RG: before 2020CF3 1RH: before 2020CF3 1RJ: before 2020CF3 1RL: before 2020CF3 1RN: before 2020CF3 1RP: before 2020CF3 1RQ: before 2020CF3 1RR: before 2020CF3 1RS: before 2020CF3 1RT: before 2020CF3 1RU: before 2020CF3 1RW: before 2020CF3 1RX: before 2020CF3 1RY: before 2020CF3 1RZ: before 2020CF3 1SA: before 2020CF3 1SB: before 2020CF3 1SD: before 2020CF3 1SE: before 2020CF3 1SF: before 2020CF3 1SG: before 2020CF3 1SH: before 2020CF3 1SJ: before 2020CF3 1SL: before 2020CF3 1SP: before 2020CF3 1SQ: before 2020CF3 1SR: before 2020CF3 1SS: before 2020CF3 1ST: before 2020CF3 1SU: before 2020CF3 1SW: before 2020CF3 1SX: before 2020CF3 1SY: before 2020CF3 1SZ: before 2020CF3 1TA: before 2020CF3 1TB: before 2020CF3 1TD: before 2020CF3 1TE: before 2020CF3 1TF: before 2020CF3 1TG: before 2020CF3 1TH: before 2020CF3 1TJ: before 2020CF3 1TL: before 2020CF3 1TN: before 2020CF3 1UF: before 2020CF3 1UG: before 2020CF3 1UJ: before 2020CF3 1UL: before 2020CF3 1US: before 2020CF3 1UT: before 2020CF3 1XQ: before 2020CF3 1YA: before 2020CF3 1YL: before 2020 TrowbridgeRumney Map of every postcode in the CF3 1 sector, by new since 2020 Of the 88 postcodes in the CF3 1 sector that ONS places, 88 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: Trowbridge, Rumney. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. TrowbridgeRumney
  • New since 2020: 0
  • In use before 2020: 88

Of the 88 postcodes in the CF3 1 sector that ONS places, 88 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. 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.

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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

What do homes sell for in CF3 1?

Homes in CF3 1 sold for a typical £230,000 in the 12 months to August 2026, across 24 sales, up 10.6% on the 12 months before, HM Land Registry's figures show.

£230,000 typical price, the 12 months to August 2026
£208,000 12 months to August 2025
▲ up 10.6% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £245,000 9 sales
  • Terraced £217,250 12 sales
  • Flat or maisonette 1 sale, 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 CF3 1. 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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