CF14 0NU is an accessible, working-class neighbourhood on Three Arches Avenue, 0.9km from Llanishen in Cardiff. Administratively it sits within Cyncoed ward and the Cardiff Central constituency.
One of the more sought-after postcodes in CF14, CF14 0NU offers a settled suburb of older couples whose children have left home. A balanced community with an average age of 41 — families, professionals, and long-term residents all well represented. 89% of residents own their home — above average for the district, consistent with a stable and sought-after address.
Safety: Crime rates are low here at 29 incidents per 1,000 residents — well below average and reassuring for families. Property: Average house prices are around £375k. The Index of Multiple Deprivation places this area in the most deprived 20% nationally — this often means more affordable prices and active local authority investment, but also fewer amenities and higher benefit dependency.
Census 2021 statistics for CF14 0NU are sourced from Output Area W00008957 (shared with 13 postcodes in this micro-neighbourhood). Property prices come from HM Land Registry.
THREE ARCHES AVENUE, CF14 0NU House Prices & Local Information
Comprehensive demographic deep-dive and infrastructure audit for THREE ARCHES AVENUE, CF14 0NU.
342
41
£ 54,100 /yr
44%
Neighbourhood Index
infoHow calculated?Score 1–10 — how this postcode ranks nationally (10 = top 10%)
Index Insight: CF14 0NU is ranked in the top 20% nationally for affluence, indicating a high-income demographic. It scores highly on the family-friendly index, suggesting a strong presence of family households and good proximity to schools.
Area Character
CF14 0NU is a mixed residential postcode — average age 41, 89% owner-occupied, spanning a wide range of household types and life stages. £375k prices and low crime put this mixed postcode in the more desirable bracket.
mapGeographic Location
Demographic Deep-Dive
The Census 2021 data below shows the full population breakdown for CF14 0NU. The average age is 41.0. Figures are sourced from the Office for National Statistics and cover ethnicity, age, religion, education, occupation, housing tenure, and more.
Ethnicity Profile
Economic Activity
Age & Housing: A settled, mid-life demographic of homeowners. The population consists largely of established adults and families who own their properties.
home Property Prices by Type
Semi-Detached
£ 370,000
14 sales · Mean £ 352,142
gavel Crime Overview 12 Months (up to 2026-02)
CF14 0NU has low crime rates — 29 incidents per 1,000 residents. The most reported categories are violence and sexual offences and criminal damage and arson. Commercial streets and transport hubs naturally generate more incidents than quiet residential roads.
storefront Nearby Amenities
Retailers - Other
10 nearby- Cardiff Savoury Popcorn1.0 km
- Lakeside Pharmacy1.0 km
- Tesco1.0 km
- Cardiff Savoury Popcorn1.0 km
- Lakeside Pharmacy1.0 km
- + 5 more
Pub, NightClub
4 nearby- Three Arches0.1 km
- Three Arches0.1 km
- Llanishen RFC0.8 km
- Llanishen RFC0.8 km
Restaurant, Cafe
18 nearby- Coffee Plus0.2 km
- Villaggio lakeside0.1 km
- Waterloo Tea1.0 km
- Coffee Plus0.2 km
- Villaggio lakeside0.1 km
- + 13 more
Takeaway Shop
4 nearby- The Kiosk0.1 km
- The Kiosk0.1 km
- Domino's Pizza0.6 km
- Domino's Pizza0.6 km
train Transport Links
Train Stations
- Heath High Level0.4 km
- Heath Low Level0.6 km
- Ty Glas0.9 km
Bus Stops
- Rhydypenau Crossroads0.1 km
- Rhydypenau Crossroads0.1 km
- Three Arches Avenue0.2 km
- Llandennis Road0.2 km
- Rhydypenau Library0.2 km
Generated by PostcodeInfo.uk
Postcode Profile: CF140NU · Data under Open Government Licence