CF3 6 postcode sector in the CF3 district

CF3 6 is a sector of the CF3 district: every postcode that starts CF3 6. It has 60 postcodes in use.

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

Every postcode in the CF3 6 sector, by gigabit broadband

Map of every postcode in the CF3 6 sector, by gigabit broadband Of the 60 postcodes in the CF3 6 sector that ONS places, 4 have no home or business that can get gigabit, 20 have some that can and 36 can all get it. Places named: Pontprennau and Old St Mellons, Tredegar Park and Marshfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M4A48(M)A4232 CF3 6AB: gigabit for allCF3 6AE: gigabit for allCF3 6AF: gigabit for allCF3 6AG: gigabit for allCF3 6AH: gigabit for allCF3 6AL: gigabit for allCF3 6AP: gigabit for allCF3 6AR: gigabit for allCF3 6AS: gigabit for allCF3 6AY: gigabit for allCF3 6AZ: gigabit for allCF3 6BA: gigabit for allCF3 6BB: gigabit for allCF3 6BD: gigabit for allCF3 6BE: gigabit for allCF3 6BF: gigabit for allCF3 6BG: gigabit for allCF3 6HX: gigabit for allCF3 6US: gigabit for allCF3 6UZ: gigabit for allCF3 6WA: gigabit for allCF3 6XA: gigabit for allCF3 6XF: gigabit for allCF3 6XJ: gigabit for allCF3 6XR: gigabit for allCF3 6XU: gigabit for allCF3 6YF: gigabit for allCF3 6YL: gigabit for allCF3 6YN: gigabit for allCF3 6YP: gigabit for allCF3 6YQ: gigabit for allCF3 6YR: gigabit for allCF3 6YS: gigabit for allCF3 6YT: gigabit for allCF3 6YW: gigabit for allCF3 6YY: gigabit for allCF3 6AA: some gigabitCF3 6AJ: some gigabitCF3 6AN: some gigabitCF3 6AQ: some gigabitCF3 6LP: some gigabitCF3 6UY: some gigabitCF3 6WQ: some gigabitCF3 6XD: some gigabitCF3 6XE: some gigabitCF3 6XG: some gigabitCF3 6XL: some gigabitCF3 6XS: some gigabitCF3 6XT: some gigabitCF3 6XW: some gigabitCF3 6XX: some gigabitCF3 6YA: some gigabitCF3 6YG: some gigabitCF3 6YJ: some gigabitCF3 6YX: some gigabitCF3 6YZ: some gigabitCF3 6AT: no gigabitCF3 6AW: no gigabit Pontprennau and Old St MellonsTredegar Park and Marshfield Map of every postcode in the CF3 6 sector, by gigabit broadband Of the 60 postcodes in the CF3 6 sector that ONS places, 4 have no home or business that can get gigabit, 20 have some that can and 36 can all get it. Places named: Pontprennau and Old St Mellons, Tredegar Park and Marshfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. M4A48(M) Pontprennau and Old St MellonsTredegar Park and Marshfield
  • No home or business can get gigabit: 4
  • Some can get gigabit: 20
  • Every home and business can get gigabit: 36
  • Ofcom gives no figure: 0

Of the 60 postcodes in the CF3 6 sector that ONS places, 4 have no home or business that can get gigabit, 20 have some that can and 36 can all get it.

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. 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; gigabit: Ofcom, Connected Nations, Spring 2026; 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

Postcodes without gigabit

CF3 6ATCF3 6AUCF3 6AWCF3 6AX

What do homes sell for in CF3 6?

Homes in CF3 6 sold for a typical £290,000 in the 12 months to August 2026, across 60 sales, down 3.3% on the 12 months before, HM Land Registry's figures show.

£290,000 typical price, the 12 months to August 2026
£299,995 12 months to August 2025
▼ down 3.3% on the 12 months before
  • Detached £368,000 15 sales
  • Semi-detached £289,950 25 sales
  • Terraced £266,000 14 sales
  • Flat or maisonette £180,000 6 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 CF3 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 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

Postcodes in CF3 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.

CF3 6AACF3 6ABCF3 6AECF3 6AFCF3 6AGCF3 6AHCF3 6AJCF3 6ALCF3 6ANCF3 6APCF3 6AQCF3 6ARCF3 6ASCF3 6ATCF3 6AUCF3 6AWCF3 6AXCF3 6AYCF3 6AZCF3 6BACF3 6BBCF3 6BDCF3 6BECF3 6BFCF3 6BGCF3 6HXCF3 6LPCF3 6USCF3 6UYCF3 6UZCF3 6WACF3 6WQCF3 6XACF3 6XDCF3 6XECF3 6XFCF3 6XGCF3 6XJCF3 6XLCF3 6XRCF3 6XSCF3 6XTCF3 6XUCF3 6XWCF3 6XXCF3 6YACF3 6YFCF3 6YGCF3 6YJCF3 6YLCF3 6YNCF3 6YPCF3 6YQCF3 6YRCF3 6YSCF3 6YTCF3 6YWCF3 6YXCF3 6YYCF3 6YZ

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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