Property Diligence

Penylan and Cyncoed (CF23) or Pontcanna and Grangetown (CF11): an area comparison

Pontcanna and Grangetown has the lower recorded-sale median by £50,000. The cards below show how the two areas compare on prices, schools, green space, local profile and transport.

The short answer

Which has the lower district median?

Penylan and Cyncoed: £285,000. Pontcanna and Grangetown: £235,000.

Pontcanna and Grangetown is lower in this 24-month sample.

Which has the broader school register?

Penylan and Cyncoed: 0. Pontcanna and Grangetown: 0 open establishments.

This is the size of each district's registered school base.

How does everyday access compare?

Bus nodes: CF23 254, CF11 177. mapped green-space sites: CF23 76, CF11 66.

These counts show the scale of each district's transport and outdoor offer.

The broad price gap is £50,000 across the 24-month samples. That gives Pontcanna and Grangetown the lower starting point, while the remaining sections show where the two district profiles differ.

Penylan and Cyncoed has 0 registered schools, 76 mapped green-space sites and 254 bus nodes. Pontcanna and Grangetown has 0, 66 and 177 respectively.

District prices

CF23 recorded 930 completed sales in the 24-month sample. The median was £285,000. The £359,409 average is higher because a small number of expensive sales can lift it.

CF11 recorded 980 completed sales in the 24-month sample. The median was £235,000. The £280,325 average is higher because a small number of expensive sales can lift it.

CF23

Median recorded sale
£285,000
Average recorded sale
£359,409
Recorded sales
930 (24 months)
HM Land Registry Price Paid Data. local 2025-2026 bulk snapshot. Retrieved 2026-10-01.
How this was counted

Postcode district. non-deleted recorded sales in preceding 24 months.

CF11

Median recorded sale
£235,000
Average recorded sale
£280,325
Recorded sales
980 (24 months)
HM Land Registry Price Paid Data. local 2025-2026 bulk snapshot. Retrieved 2026-10-01.
How this was counted

Postcode district. non-deleted recorded sales in preceding 24 months.

Crime and serious-crime share

Police.uk records 3,020 reports from 2025-07 to 2026-06. Violence and sexual offences, robbery, burglary and weapons-possession reports account for 1,164, or 38.5% of the total.

Police.uk records 5,382 reports from 2025-07 to 2026-06. Violence and sexual offences, robbery, burglary and weapons-possession reports account for 1,866, or 34.7% of the total.

CF23

Reported crime, 12 months
3,020
Selected report-category share
1,164 (38.5%)
data.police.uk street-level crime custom download. 2025-07 to 2026-06; seven verified programme forces. Original download date not recorded.
How this was counted

Postcode district. Police.uk anonymised coordinates assigned to nearest Code-Point Open centroid; selected-category share is not an official severity rate.

CF11

Reported crime, 12 months
5,382
Selected report-category share
1,866 (34.7%)
data.police.uk street-level crime custom download. 2025-07 to 2026-06; seven verified programme forces. Original download date not recorded.
How this was counted

Postcode district. Police.uk anonymised coordinates assigned to nearest Code-Point Open centroid; selected-category share is not an official severity rate.

Local-area deprivation context

IMD is a Government local-area scale from 1 to 10: 1 is the poorer end, while 10 is the more well-off end. CF23 has a median of 9.0. 16.4% of mapped postcode units are in the poorer 1 to 3 band and 64.9% are in the more well-off 8 to 10 band.

IMD is a Government local-area scale from 1 to 10: 1 is the poorer end, while 10 is the more well-off end. CF11 has a median of 4.0. 45.9% of mapped postcode units are in the poorer 1 to 3 band and 25.3% are in the more well-off 8 to 10 band.

CF23

Median IMD decile
9.0 / 10
Postcode units in deciles 1–3
16.4%
Postcode units in deciles 8–10
64.9%
Welsh Government Welsh Index of Multiple Deprivation 2025 — Cardiff extract. 2025-11-25. Original download date not recorded.
How this was counted

Postcode district. distribution of WIMD 2025 deciles at Code-Point postcode centroids; Wales only.

CF11

Median IMD decile
4.0 / 10
Postcode units in deciles 1–3
45.9%
Postcode units in deciles 8–10
25.3%
Welsh Government Welsh Index of Multiple Deprivation 2025 — Cardiff extract. 2025-11-25. Original download date not recorded.
How this was counted

Postcode district. distribution of WIMD 2025 deciles at Code-Point postcode centroids; Wales only.

Schools

The register lists 0 open establishments in CF23. It is a useful picture of the local school base, across the phases shown in the card below.

The register lists 0 open establishments in CF11. It is a useful picture of the local school base, across the phases shown in the card below.

CF23

Registered school sites
0 ()
DfE Get Information about Schools establishment register. 2026-08-02. Original download date not recorded.
How this was counted

Postcode district. open GIAS establishments grouped by registered postcode district.

CF11

Registered school sites
0 ()
DfE Get Information about Schools establishment register. 2026-08-02. Original download date not recorded.
How this was counted

Postcode district. open GIAS establishments grouped by registered postcode district.

Green space and outdoor sport

OS maps 76 green-space or outdoor-sport sites covering 196.54 hectares, including 22 public parks or gardens. This gives the district a substantial mapped outdoor offer.

OS maps 66 green-space or outdoor-sport sites covering 234.37 hectares, including 15 public parks or gardens. This gives the district a substantial mapped outdoor offer.

CF23

Mapped OS green-space sites
76
Mapped site area
196.54 ha
Public parks or gardens
22
OS Open Greenspace. April 2026 programme-city tile manifest. Original download date not recorded.
How this was counted

Postcode district. OS Open Greenspace April 2026 site polygon geometric centroid assigned to nearest Code-Point Open postcode centroid.

CF11

Mapped OS green-space sites
66
Mapped site area
234.37 ha
Public parks or gardens
15
OS Open Greenspace. April 2026 programme-city tile manifest. Original download date not recorded.
How this was counted

Postcode district. OS Open Greenspace April 2026 site polygon geometric centroid assigned to nearest Code-Point Open postcode centroid.

Flood context

Natural Resources Wales maps flood-risk bands at 910 postcode centroids. 90 fall within a mapped extent: 3 high, 25 medium and 62 low.

Natural Resources Wales maps flood-risk bands at 868 postcode centroids. 710 fall within a mapped extent: 3 high, 1 medium and 706 low.

CF23

Postcode centroids in source
910
In a mapped flood-risk extent
90
Highest mapped risk: high / medium / low
3 / 25 / 62
Natural Resources Wales Flood Risk Assessment Wales. 2026-05-21 Cardiff extract manifest. Original download date not recorded.
How this was counted

Postcode district. point-in-polygon classification of Code-Point postcode centroids against NRW Flood Risk Assessment Wales risk bands.

CF11

Postcode centroids in source
868
In a mapped flood-risk extent
710
Highest mapped risk: high / medium / low
3 / 1 / 706
Natural Resources Wales Flood Risk Assessment Wales. 2026-05-21 Cardiff extract manifest. Original download date not recorded.
How this was counted

Postcode district. point-in-polygon classification of Code-Point postcode centroids against NRW Flood Risk Assessment Wales risk bands.

Air quality

The 2024 modelled annual-mean NO₂ median is 11.9 µg/m³. 98.7% of mapped units exceed the WHO 10 µg/m³ guideline and 0.0% meet or exceed 40 µg/m³.

The 2024 modelled annual-mean NO₂ median is 12.3 µg/m³. 94.6% of mapped units exceed the WHO 10 µg/m³ guideline and 0.0% meet or exceed 40 µg/m³.

CF23

Median annual mean NO₂
11.9 µg/m³
Postcode units above WHO 10 µg/m³
98.7%
Postcode units at or above legal 40 µg/m³
0.0%
DEFRA Pollution Climate Mapping annual-mean NO2 grid. 2024. Original download date not recorded.
How this was counted

Postcode district. DEFRA PCM 2024 1 km modelled annual-mean NO2 looked up at each Code-Point Open postcode centroid; postcode-unit weighted district summary.

CF11

Median annual mean NO₂
12.3 µg/m³
Postcode units above WHO 10 µg/m³
94.6%
Postcode units at or above legal 40 µg/m³
0.0%
DEFRA Pollution Climate Mapping annual-mean NO2 grid. 2024. Original download date not recorded.
How this was counted

Postcode district. DEFRA PCM 2024 1 km modelled annual-mean NO2 looked up at each Code-Point Open postcode centroid; postcode-unit weighted district summary.

Transport access nodes

NaPTAN contains 254 active bus nodes and 5 rail, metro or tram nodes across CF23. Together, they describe the district-wide public-transport network.

NaPTAN contains 177 active bus nodes and 5 rail, metro or tram nodes across CF11. Together, they describe the district-wide public-transport network.

CF23

Active bus access nodes
254
Active rail, metro or tram nodes
5
NaPTAN. 2026-08-02. Original download date not recorded.
How this was counted

Postcode district. active NaPTAN access node assigned to nearest Code-Point Open centroid.

CF11

Active bus access nodes
177
Active rail, metro or tram nodes
5
NaPTAN. 2026-08-02. Original download date not recorded.
How this was counted

Postcode district. active NaPTAN access node assigned to nearest Code-Point Open centroid.

Broadband availability

The postcode-unit median maximum advertised download is 1,000 Mbit/s, with 100.0% full-fibre and 100.0% gigabit availability.

The postcode-unit median maximum advertised download is 1,000 Mbit/s, with 100.0% full-fibre and 100.0% gigabit availability.

CF23

Median maximum advertised download
1,000 Mbit/s
Median full-fibre availability
100.0%
Median gigabit availability
100.0%
Ofcom Connected Nations. 2025. Original download date not recorded.
How this was counted

Postcode district. median across postcode units.

CF11

Median maximum advertised download
1,000 Mbit/s
Median full-fibre availability
100.0%
Median gigabit availability
100.0%
Ofcom Connected Nations. 2025. Original download date not recorded.
How this was counted

Postcode district. median across postcode units.

Road safety

DfT records 89 personal-injury collisions in 2022 to 24: 0 fatal, 11 serious and 78 slight.

DfT records 90 personal-injury collisions in 2022 to 24: 0 fatal, 13 serious and 77 slight.

CF23

Reported collisions, 2022–24 (raw count)
89
Fatal
0
Serious
11
Slight
78
DfT STATS19 Road Safety Data. 2022-2024 collision files. Original download date not recorded.
How this was counted

Postcode district. 2022–24 STATS19 collision assigned to nearest Code-Point Open centroid.

CF11

Reported collisions, 2022–24 (raw count)
90
Fatal
0
Serious
13
Slight
77
DfT STATS19 Road Safety Data. 2022-2024 collision files. Original download date not recorded.
How this was counted

Postcode district. 2022–24 STATS19 collision assigned to nearest Code-Point Open centroid.

Sources and method

Related guides

For an address-specific desk check, Property Diligence’s paid report adds the more detailed property-level information available from public sources.