CF23 8NX

POSTCODE

CF23 8NX is a postcode in Pontprennau and Old St Mellons.

Small user postcodeQuality indicator 1 (highest positional precision)Updated 2026-08-01
Coordinates
51.5325, -3.1314
OS grid ST216821 (321,621, 182,122)
IMD Wales
10/10
#1809
Crime · Aug '26
Around average · 9.5 per 1k
MoM +13% vs Jul '26
Plus Code
9C3RGVM9+2F
Least deprived 10%
IMD Wales
Around average · 9.5 per 1k
Crime · Aug '26
£272,250
Median property price · Sep 2025–Aug 2026 · 3,572 sales
+0.8%
Last 12 full months vs the prior 12
Wales
Region
Least deprived 10%
IMD Wales
Around average · 9.5 per 1k
Crime · Aug '26
£272,250
Median property price · Sep 2025–Aug 2026 · 3,572 sales
+0.8%
Last 12 full months vs the prior 12
Wales
Region

Deprivation Index (IMD)

IMD Wales — Index of Multiple Deprivation
Measures deprivation across income, employment, health, education, access to services, housing, and community safety.
1809
Rank out of 1,917 LSOAs in Wales
1 - Most deprived10 - Least deprived
Rank 1809 out of 1,917 lower layer super output areas in Wales. N/A for England, Scotland and Northern Ireland as this postcode is in Wales.

Property sales (Land Registry)

England & Wales
Property sales · CF23 8NX
HM Land Registry · Cardiff
Average price
£314,186
Median price: £272,250
Median +0.8% vs prior 12 months
Standard sales only · Sep 2025–Aug 2026 · 3,572 sales
Property type filter
Recent sale price trend
Nov '23 – Oct '25Oct '25: 1 sales · avg £475,000
X axis: MonthY axis: Avg sold price (hover shows sales count)
£495k£485k£475k
Nov '23Oct '25
Contains HM Land Registry data © Crown copyright and database right. This data is licensed under the Open Government Licence v3.0.

Police Recorded Crime near CF23 8NX

England & Wales
Crime trends · near CF23 8NX

Counts are for Pontprennau and Old St Mellons electoral ward, not a 1-mile police.uk street search around this postcode.

data.police.uk · YoY vs same month last year · per 1,000 residents (Census 2021)Sep '24 – Aug '26
Key categories · YoY
Violent Crime
23
YoY —
26130
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
32
YoY —
32160
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
4
YoY —
630
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
0
YoY —
1050
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
10
YoY —
1050
Sep '24Mar '25Sep '25Mar '26Aug '26
Other recorded crime
42
YoY —
42210
Sep '24Mar '25Sep '25Mar '26Aug '26

0 of 6 key categories improving

111
incidents · Aug '26

Demographics (LSOA 2021 context)

Ethnicity

Total residents: 1,547
White Brit.73.0%
Indian5.4%
Other White3.9%
Other ethnic group: Arab3.6%
Chinese2.8%
+ 5 other groups · 11.4%

Religion

Total residents: 1,547
Christian46.6%
No religion32.0%
Muslim9.5%
Not answered6.1%
Hindu4.2%
+ other · 1.5%

Age groups

Total residents: 1,547
35–4924.9%
50–6421.6%
25–3412.5%
10–158.1%
≤47.2%
+ 6 other age groups · 25.7%

Households

Total households: 566
Married or civil partnership couple: Dependent children26.1%
One person: other15.2%
Married or civil partnership couple: No children14.7%
Married or civil partnership couple: All children non-dependent10.6%
Cohabiting couple family: No children6.9%
+ 7 other households · 26.5%

Getting around

Straight-line distance from this postcode. Walking time is approximate.

Stations

  • Llanishen Rail Station

    Rail · SE Entrance

    3.5 km straight lineabout 43 min
  • Heath High Level Rail Station

    Rail · NE Entrance

    3.9 km straight lineabout 49 min
  • Heath Low Level Rail Station

    Rail · Entrance

    4.0 km straight lineabout 50 min

Bus stops

  • Asda

    Bus · opp · north-west

    234 m straight lineabout 3 min
  • Asda

    Bus · after · south-east

    252 m straight lineabout 3 min
  • Heol Pontprennau

    Bus · after pond · south-east

    332 m straight lineabout 4 min
  • Heol Pontprennau

    Bus · opp pond · north-west

    344 m straight lineabout 4 min
  • Hollington Drive

    Bus · before · south-east

    379 m straight lineabout 5 min

Coordinates & Location for CF23 8NX

Wales
Country
Cardiff
Local Authority
Pontprennau and Old St Mellons
Ward
Cardiff
Travel to Work
TTWA
Postcode
CF23 8NX
Coordinates
51.5325, -3.1314
Grid reference
ST216821
Easting
321,621
Northing
182,122
Region
Wales
Plus Code
9C3RGVM9+2F
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Cardiff
Travel to Work
Cardiff
ITL Region
Cardiff
National Park
Non-National Park

Administrative Information

Cardiff
Local Authority
Council Area
Cardiff North W07000090
Constituency
W07000090
South Wales
Police Force
Wales
Ward
Pontprennau and Old St Mellons
Constituency code
W07000090
EU Electoral Region
Wales
Parish
Pontprennau
International Territorial Level
Cardiff

Health & NHS

Cardiff and Vale University Health Board
Health Authority
Serving (pseudo) Wales
NHS Wales
Wales
Cancer Alliance
National
Health Authority
Cardiff and Vale University Health Board
NHS Region
Wales
Integrated Care Board
Wales
Primary Care Org
Cardiff and Vale University Health Board
Sub ICB Location
Cardiff and Vale University
Cancer Alliance
Wales

Statistical Areas

LSOA 2021
Super Output Area
Cardiff 003G W01002018
W01002018
MSOA 2021
Mid Super Output
Cardiff 003 W02000369
W02000369
LSOA 2011
Super Output Area
Cardiff 003C W01001843
W01001843
MSOA 2011
Mid Super Output
Cardiff 003 W02000369
W02000369
Urban: Nearer to a major town or city
Rural/Urban Classification 2021
2001 Classification
(England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 Classification
(England/Wales) Urban city and town C1
2021 Classification
Urban: Nearer to a major town or city UN1

Sun & Time Information

7:37 AM6:18 PM
7:37 AM
Sunrise
6:18 PM
Sunset
10 hours 41 minutes of daylight today
Sunrise (today)
7:37 AM
Sunset (today)
6:18 PM
Daylight duration
10 hours 41 minutes
Time zone
GMT / BST (UTC +0 / +1)

Postcode History

June 1999
First Introduced
Active from
Not terminated
Usage Ended
Terminated
~27 years
Active Duration
1999 -> Present
June 1999 — Introduced
Postcode CF23 8NX introduced by Royal Mail.
2001 — Census Classification
2001 Rural/Urban Classification: (England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 — Reclassified
2011 Rural/Urban Classification: (England/Wales) Urban city and town C1.
2021 — Census Update
2021 Census classification: Urban: Nearer to a major town or city UN1. LSOA W01002018 and MSOA W02000369 assigned.
2025 — Indices of Deprivation
IMD Wales rank: 1809
Present — Active
Postcode CF23 8NX is currently active and in use.
First introduced
June 1999
Usage ended
Not terminated
Active duration
~27 years
Last updated
2026-08-01
Current status
Live

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