Postcode district · Free area page

CF23, Cardiff

Cardiff, Wales

Wales
Updated 24 Oct 2026, 01:05

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Centre of CF23. The circle is the 1 mile crime search radius.

Summary

Written by AI from the figures below

CF23, Cardiff, Wales has a median sale price of £285,000 from 343 sales in the district over the last 12 months.HM Land Registry Postcodes.io That median is 3.4% lower than the previous 12 months (£295,000 from 601 sales), and the Postcode Pulse price trend score is 42 out of 100.HM Land Registry The Postcode Pulse safety score is 43 out of 100, with an average of 164 crimes and anti-social behaviour reports a month within 1 mile over the 3 months to August 2026.data.police.uk Of 209 homes in 6 sampled postcodes with an energy certificate, the median rating is band C (74 out of 100), and 80% are rated band C or better.EPC register Flood data is not available for this location and broadband data is not connected yet.Environment Agency Ofcom

AI-generated summary of the figures below. The data tables take precedence.

Median sale price (12 months): £285,000; 343 sales; Source: HM Land Registry
Crimes and ASB a month (1 mile): 164; Jun-Aug 2026; Source: data.police.uk
Typical energy rating: Band C; 209 certificates; Source: EPC register
Nearest station: 1.8 km; Heath High Level Rail Station; Source: NaPTAN
Food businesses within ½ mile: 1,842; Source: Food Standards Agency

Scores

Each out of 100. Higher is better for the people who live there.

How we score

Safety

43/100

164 crimes and anti-social behaviour reports a month within 1 mile (Jun-Aug 2026)

Show the numbers

Inputs to the safety score
Recorded crimes and anti-social behaviour	491
Months of data	3
Per month	163.7
Severity-weighted crimes per km² per month	25.7 per km² per month
Search radius	1.6 km

Recorded street-level crime within the search radius, weighted by offence type (violence and robbery x2, ASB x0.5), per km² per month, placed on a log scale from 1 (scores 100) to 300 (scores 0).

Counts recorded crime by location, not risk to any individual; busy city centres score lower because of footfall.
Locations are anonymised to nearby map points by the police.

Confidence: high. Source: data.police.uk. How we score this

Flood risk

Not scored

Environment Agency flood data covers England only; flood warnings and flood maps for Wales come from Natural Resources Wales

Broadband

Not scored

Broadband data isn't connected to Postcode Pulse yet, so this part of the report is empty for now.

Energy efficiency

74/100

Median rating of 209 certificates: band C (74)

Show the numbers

Inputs to the energy efficiency score
Energy efficiency rating (SAP)	74
EPC band	C
Based on	median
Certificates used	209

The SAP energy efficiency rating from the EPC (1-100, the number behind bands A-G): the property's own certificate when we can match the address, otherwise the median of the latest certificate for each property in the postcode.

Certificates last ten years and may predate later improvements.

Confidence: medium. Source: EPC register. How we score this

Price trend

42/100

Median sale price down 3.4% year on year in CF23

Show the numbers

Inputs to the price trend score
Change in median price	-3.4%
Median price, last 12 months	£285,000
Median price, previous 12 months	£295,000
Sales, last 12 months	343
Sales, previous 12 months	601

50 + 2.5 x the percentage change in median sale price between the last 12 months and the 12 months before (so +20% scores 100 and -20% scores 0).

Measures recent price momentum, not value for money or affordability, and is not a forecast.
Medians move with the mix of homes sold as well as with prices.

Confidence: high. Source: HM Land Registry. How we score this

Amenities

100/100

1,842 food businesses, shops and school kitchens within 0.5 miles

Show the numbers

Inputs to the amenities score
Food businesses on the FSA register within the radius	1,842
Radius	805 m
Weighted count	1,518.7
Restaurant cafe	73
Other retail	62
Childcare health care	41
Other	37
Takeaway	29
Pub bar	17
Mobile caterer	16
School college	15
Supermarket	10

A weighted count of premises on the Food Standards Agency register within the radius (supermarkets x3, schools x2, cafés, restaurants, pubs and care settings x1, takeaways and other shops x0.5), scored as 100 x (1 - e^(-count / 80)).

The FSA register lists businesses that handle food, so it is a proxy for local amenities: parks, GP surgeries and gyms are not included.

Confidence: medium. Source: Food Standards Agency. How we score this

Transport

80/100

Heath High Level Rail Station 1.8 km away; 8 bus stops within 400 m

Show the numbers

Inputs to the transport score
Nearest railway station (Heath High Level Rail Station)	1.8 km
Nearest metro or tram stop	—
Bus stops within 400 m	8

0.55 x a rapid-transit component (the better of: rail station 100 within 500 m falling to 0 at 4 km; metro/tram stop 100 within 500 m falling to 0 at 2 km) plus 0.45 x a bus component (12.5 points per stop within 400 m, up to 100).

NaPTAN lists stops, not how often services run.

Confidence: medium. Source: NaPTAN. How we score this

Planning freedom

Not scored

Planning constraints depend on the exact location, so they are in the full address report.

Go deeper on one address

Address reports add sold prices for the street and postcode, the property's energy certificate and the planning constraints at that exact spot.

Renters' report
£1.99one-off
What matters when you rent: bills, broadband, safety and getting around.
- Energy rating for the address (and what it means for bills)
- Broadband, crime, flood risk, amenities and transport
- AI summary with sources, plus a PDF
Get a renters' report
Full address report
£3.99one-off
Everything we know about one address, with the numbers behind every score.
- Sold prices for the street, postcode and sector
- Planning constraints: conservation areas, listed buildings, green belt
- All eight scores with their inputs, plus a PDF
Get the full report
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30 days of unlimited full reports and side-by-side comparison of up to four addresses.
- Unlimited full reports for 30 days
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Area insights

Sold prices

Source: HM Land Registry

Score 42/100

£285,000

Median sale price (12 months) · 343 sales

Median sale price down 3.4% year on year in CF23

Show details

District CF23

Median, last 12 months: £285,000
Sales, last 12 months: 343
Change on previous 12 months: -3.4%
Median over the period: £290,000
New builds: 0%
Leasehold: 23%

Detached (372)£485,000
Semi-detached (484)£330,000
Terraced (576)£240,000
Flat or maisonette (365)£175,000

Show as a table

Year	Median	Sales
2023 (part year)	£268,500	418
2024	£300,000	536
2025	£290,000	609
2026 (part year)	£295,000	234

Data fetched 24 Oct 2026, 01:05.

Energy performance

Source: EPC register

Score 74/100

Band C

Typical energy rating · 209 certificates

Median rating of 209 certificates: band C (74)

Show details

Homes with a certificate: 209
Median rating: Band C (74)
Band C or better: 80%

Band A0
Band B8
Band C159
Band D41
Band E1
Band F0
Band G0

Pooled across 6 postcodes near the centre of the district. Private rentals generally need band E or better.

Data fetched 24 Oct 2026, 01:05.

Crime

Source: data.police.uk

Score 43/100

164

Crimes and ASB a month (1 mile) · Jun-Aug 2026

164 crimes and anti-social behaviour reports a month within 1 mile (Jun-Aug 2026)

Show details

Crimes a month (average): 164
Months covered: 3 to August 2026
Police force: South Wales Police

Violence and sexual offences58.3
Anti-social behaviour23.3
Public order19.3
Vehicle crime14.3
Shoplifting11
Criminal damage and arson10
Burglary8.3
Other theft7.7
Other crime4
Drugs3

Crime locations on data.police.uk are anonymised: each crime is mapped to a nearby fixed point (the centre of a street, open space or similar), shown as 'on or near' that place, never to an exact address. Counts cover a 1-mile radius around the point and include anti-social behaviour.

Data fetched 23 Oct 2026, 13:27.

Flood risk

Source: Environment Agency

Not available for this location

Environment Agency flood data covers England only; flood warnings and flood maps for Wales come from Natural Resources Wales

Broadband

Source: Ofcom

Not connected yet

Broadband data isn't connected to Postcode Pulse yet, so this part of the report is empty for now.

Amenities

Source: Food Standards Agency

Score 100/100

1,842

Food businesses within ½ mile

1,842 food businesses, shops and school kitchens within 0.5 miles

Show details

Food businesses within the radius: 1,842
Radius: 805 m
Hygiene rated 4 or 5: 89%

Restaurants and cafés73
Other shops62
Childcare, health and care41
Other37
Takeaways29
Pubs and bars17
Mobile caterers16
Schools and colleges15
Supermarkets10

based on the nearest 300 of 1,842

From the Food Standards Agency register of food businesses, a proxy for everyday amenities.

Data fetched 24 Oct 2026, 01:05.

Public transport

Source: NaPTAN

Score 80/100

1.8 km

Nearest station · Heath High Level Rail Station

Heath High Level Rail Station 1.8 km away; 8 bus stops within 400 m

Show details

Nearest station: Heath High Level Rail Station
Distance: 1.8 km
Bus stops within 400 m: 8

Mode	Within 400 m	Within 800 m	Nearest
Bus stops	8	32	Maelfa (197 m)
Railway stations	0	0	Heath High Level Rail Station (1.8 km)

NaPTAN lists stops and stations, not how often services run.

Data fetched 23 Oct 2026, 12:37.

Check another postcode

Sources and attribution

Postcodes.io (Ideal Postcodes (data: Office for National Statistics))
Postcode data from Postcodes.io (ONS Postcode Directory). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Licence: Service MIT; ONS Postcode Directory data under the Open Government Licence v3.0
HM Land Registry Price Paid Data (HM Land Registry)
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0
Energy Performance Certificates (England and Wales) (Ministry of Housing, Communities and Local Government (MHCLG))
Energy Performance Certificate data: Ministry of Housing, Communities and Local Government (Get energy performance of buildings data). Contains public sector information licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0 for all fields except the address and postcode data; address data © Ordnance Survey and Royal Mail, usable only for energy-performance purposes
data.police.uk (Home Office, on behalf of the police forces of England, Wales and Northern Ireland)
Crime data: data.police.uk (Home Office and the police forces of England, Wales and Northern Ireland). Contains public sector information licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0
Environment Agency flood data (Environment Agency)
This uses Environment Agency flood and river level data from the real-time data API (Beta). Flood Map for Planning: © Environment Agency copyright and/or database right 2026. All rights reserved.
Licence: Open Government Licence v3.0
Food Standards Agency food hygiene ratings (Food Standards Agency)
Food hygiene rating data: Food Standards Agency (ratings.food.gov.uk). Contains public sector information licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0
Ofcom Connected Nations (broadband coverage) (Ofcom)
Source: Ofcom, Connected Nations (Connected Nations update: Spring 2026). © Ofcom copyright 2026. Contains public sector information licensed under the Open Government Licence v3.0. Broadband speeds are Ofcom's modelled predictions, not measured speeds.
Licence: Connected Nations data: Open Government Licence v3.0 (Ofcom copyright). API access is also subject to the Ofcom API terms of use accepted at registration.
NaPTAN (National Public Transport Access Nodes) (Department for Transport)
Public transport stops: NaPTAN, Department for Transport. Contains public sector information licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0

Postcode Pulse reports are information, not advice. They are not a survey, valuation, conservation search, flood search or legal advice.
Figures come from public datasets that can be incomplete or out of date. Check anything important with the original source or a professional before you rely on it.
Postcode-level figures describe the postcode or the area around it, not necessarily the individual property.

Summary

Scores

Safety

Flood risk

Broadband

Energy efficiency

Price trend

Amenities

Transport

Planning freedom

Go deeper on one address

Renters' report

Full address report

House-hunting pass

Area insights

Sold prices

District CF23

Energy performance

Crime

Flood risk

Broadband

Amenities

Public transport

Check another postcode

Sources and attribution