Caerphilly Council approves 76.5% of planning applications, based on 3,768 real decisions analysed from the council’s public planning portal. The national average across all councils tracked by PlanningLens is 85.0%. Caerphilly sits 8.5 percentage points below the national average.
According to PlanningLens analysis of 669 decided applications, Caerphilly Council approved 76.5% of planning applications in 2025. Across 3,768 decisions on record (April 2017 to September 2026), the overall approval rate in Caerphilly is 76.5%; the national average across UK councils tracked by PlanningLens is 85.0%.
Source: PlanningLens (planninglens.co.uk) analysis of Caerphilly council planning portal records · Data to 29 September 2026 · Quote freely with attribution
Enter your postcode for a free, personalised approval pattern report, based on your ward and application type.
Not all applications are treated equally. Extension types, listed building consent, and change of use applications each have very different success rates in Caerphilly.
| Application Type | Approved | Refused | Total | Rate |
|---|---|---|---|---|
| Full | 1,975 | 635 | 2,610 | 75.7% |
| Other | 1,073 | 241 | 1,314 | 81.7% |
| Change of Use | 328 | 78 | 406 | 80.8% |
| Certificate of Lawfulness | 280 | 89 | 369 | 75.9% |
| Trees | 146 | 41 | 187 | 78.1% |
| Advertisement | 93 | 5 | 98 | 94.9% |
| Listed Building | 41 | 6 | 47 | 87.2% |
| Discharge of Conditions | 9 | 1 | 10 | 90.0% |
A loft conversion in one ward can have a 90% approval rate. In the next ward, 55%. The free check tells you which side you're on, your free property report is emailed in minutes.
Check My PostcodeWard-level data reveals where planning applications are most and least likely to succeed. Officers, local policies, and neighbourhood character all play a role.
| Ward | Approved | Refused | Total | Rate |
|---|---|---|---|---|
| St Martins | 302 | 76 | 378 | 79.9% |
| Penyrheol | 222 | 70 | 292 | 76.0% |
| Morgan Jones | 230 | 38 | 268 | 85.8% |
| Blackwood | 212 | 47 | 259 | 81.9% |
| Pontllanfraith | 200 | 42 | 242 | 82.6% |
| Crumlin | 167 | 37 | 204 | 81.9% |
| Nelson | 163 | 36 | 199 | 81.9% |
| Newbridge | 151 | 41 | 192 | 78.6% |
| St Cattwg | 141 | 49 | 190 | 74.2% |
| Penmaen | 148 | 41 | 189 | 78.3% |
| Abercarn | 128 | 46 | 174 | 73.6% |
| Ystrad Mynach | 143 | 27 | 170 | 84.1% |
| Risca West | 128 | 42 | 170 | 75.3% |
| Bedwas And Trethomas | 111 | 34 | 145 | 76.6% |
| Aberbargoed And Bargoed | 116 | 29 | 145 | 80.0% |
| Bedwas, Trethomas & Machen | 121 | 22 | 143 | 84.6% |
| Ynysddu | 98 | 41 | 139 | 70.5% |
| Machen And Rudry | 102 | 26 | 128 | 79.7% |
| Argoed | 74 | 41 | 115 | 64.3% |
| Llanbradach | 80 | 34 | 114 | 70.2% |
| Aber Valley | 81 | 25 | 106 | 76.4% |
| St James | 86 | 20 | 106 | 81.1% |
| Hengoed | 75 | 28 | 103 | 72.8% |
| Twyn Carno | 87 | 15 | 102 | 85.3% |
| Maesycwmmer | 75 | 17 | 92 | 81.5% |
Showing top 25 of 39 wards by volume. Your free property report includes the full ward breakdown.
See full ward breakdown →How Caerphilly’s planning approval rate has changed year by year, down 13.0pp since 2018.
Bar height reflects approval rate. Colour: green ≥85%, amber ≥70%, red below 70%.
Real residential planning decisions from Caerphilly council. Each reference links to the council's own planning portal so you can verify the details yourself.
| Reference | Proposal | Decision |
|---|---|---|
| 26/0528/HH Machen And Rudry | Demolish existing lean-to rear extension, raise ridge height, erect first-floor | Approved |
| 26/0497/HH Crumlin | Erect first floor rear extension | Approved |
| 26/0514/ADV Morgan Jones | Erect a single-sided illuminated billboard supported by two Circular Hollow Sect | Approved |
| 26/0350/RET Newbridge | Retain and complete construction of two storey side extension including construc | Approved |
| 26/0505/HH Bedwas And Trethomas | Erect split level two storey extension to rear of property | Approved |
| 26/0383/HH Machen And Rudry | Erect two storey rear extension | Refused |
| 26/0548/CLEU New Tredegar | Obtain a Lawful Development Certificate for existing use of the land as garden a | Approved |
| 26/0503/HH Abercarn | Erect a double storey rear extension with a single storey side extension | Approved |
| 26/0446/HH Machen And Rudry | Demolish existing conservatory and erect oak extension/conservatory (fully glaze | Approved |
| 24/0603/FULL Bedwas And Trethomas | Construct 7 No. detached houses with garage and associated road, site and draina | Approved |
Find out what actually gets approved near your address first. Your free property report analyses the 20 nearest decisions to your property, ward-specific refusal patterns, and extension-by-extension approval patterns. Based on Caerphilly's 3,768 real decisions. Free, emailed in minutes.
Check my postcodeCompare Caerphilly's planning approval rates with neighbouring areas:
Dig deeper into Caerphilly's planning statistics, by ward, extension type, or project category:
Data-driven guides to help you understand planning approval patterns:
Yes. PlanningLens offers a free planning permission check for Caerphilly. Enter your postcode to instantly see approval rates for your ward and application type, based on 3,768 real decisions from Caerphilly council. The full property-specific report is also free and emailed within minutes.
Enter your postcode on PlanningLens for a free instant check based on Caerphilly's real planning decisions. The free property report goes further: it analyses the 20 nearest comparable decisions to your property, ward-level refusal patterns, and approval rates by application type. Free and emailed within minutes.
Based on 3,768 planning decisions, the overall approval rate in Caerphilly is 76.5%. The national average across councils tracked by PlanningLens is 85.0%. Rates vary significantly by ward and application type.
PlanningLens has analysed 3,768 planning decisions from Caerphilly council. 2,884 were approved and 884 were refused. These figures cover every decision on record for the council, April 2017 to September 2026.
The average approval rate in Caerphilly is 76.5%, but outcomes depend heavily on your specific ward, the type of extension or development you are proposing, and local planning policy. Use the free PlanningLens postcode check to get a personalised score.
Writing about planning in Caerphilly? These figures are free to republish with attribution. Copy the one-line citation, or paste the stat box into any website, CMS or newsletter, it carries its own styling and links back to this page for verification.