Gwynedd Council approves 88.6% of planning applications, based on 11,001 real decisions analysed from the council’s public planning portal. The national average across all councils tracked by PlanningLens is 88.5%. Gwynedd is closely in line with the national average.
According to PlanningLens analysis of 794 decided applications, Gwynedd Council approved 87.7% of planning applications in 2025. Across 11,001 decisions analysed since January 2020, the overall approval rate in Gwynedd is 88.6%; the national average across UK councils tracked by PlanningLens is 88.5%.
Source: PlanningLens (planninglens.co.uk) analysis of Gwynedd council planning portal records · Updated June 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 Gwynedd.
| Application Type | Approved | Refused | Total | Rate |
|---|---|---|---|---|
| Other | 9,751 | 1,250 | 11,001 | 88.6% |
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 |
|---|---|---|---|---|
| Abersoch | 329 | 60 | 389 | 84.6% |
| Llanystumdwy | 313 | 48 | 361 | 86.7% |
| Porthmadog (West) | 281 | 31 | 312 | 90.1% |
| Criccieth | 272 | 35 | 307 | 88.6% |
| Llanengan | 214 | 53 | 267 | 80.1% |
| Tregarth & Mynydd Llandygai | 231 | 30 | 261 | 88.5% |
| Efailnewydd / Buan | 209 | 31 | 240 | 87.1% |
| Groeslon | 187 | 36 | 223 | 83.9% |
| Llanwnda | 190 | 32 | 222 | 85.6% |
| Abersoch gyda Llanengan | 177 | 42 | 219 | 80.8% |
| Bethel a'r Felinheli | 196 | 23 | 219 | 89.5% |
| Penrhyndeudraeth | 203 | 14 | 217 | 93.5% |
| Arllechwedd | 198 | 19 | 217 | 91.2% |
| Seiont (Caernarfon) | 204 | 9 | 213 | 95.8% |
| Aberdaron | 187 | 23 | 210 | 89.0% |
| Y Felinheli | 181 | 29 | 210 | 86.2% |
| Pwllheli (North) | 192 | 13 | 205 | 93.7% |
| Abermaw | 189 | 16 | 205 | 92.2% |
| Llanberis | 187 | 17 | 204 | 91.7% |
| Pentir | 177 | 22 | 199 | 88.9% |
| Deiniol (Bangor) | 180 | 17 | 197 | 91.4% |
| Menai (Caernarfon) | 180 | 9 | 189 | 95.2% |
| Abererch | 167 | 21 | 188 | 88.8% |
| Llanrug | 165 | 18 | 183 | 90.2% |
| Clynnog | 148 | 27 | 175 | 84.6% |
Showing top 25 of 77 wards by volume. Your free property report includes the full ward breakdown.
See full ward breakdown →How Gwynedd’s planning approval rate has changed year by year — down 2.8pp since 2018.
Bar height reflects approval rate. Colour: green ≥85%, amber ≥70%, red below 70%.
Real residential planning decisions from Gwynedd council. Each reference links to the council's own planning portal so you can verify the details yourself.
| Reference | Proposal | Decision |
|---|---|---|
| C26/0037/17/DT Tryfan | Adeiladu estyniad unllawr i modurdy. Construction of a single story garage exten | Approved |
| C25/0826/39/DT Abersoch gyda Llanengan | Estyniad llawr cyntaf ar gefn yr eiddo Proposed first floor rear extension | Refused |
| C25/0241/18/DT Penisarwaun | Newid defnydd modurdy i anecs hunangynhaliol. / Change of use garage to self con | Approved |
| C26/0188/45/DT Pwllheli (South) | Cais i greu estyniad blaen a chefn / Application for a front and rear extension | Approved |
| C26/0221/22/DT Penygroes | Estyniad unllawr cefn Single storey rear extension | Approved |
| C26/0191/26/DT Waunfawr | Estyniad cefn arfaethedig Proposed rear extension | Approved |
| C26/0134/40/DT Efailnewydd / Buan | Dymchwel sied bresennol a chodi estyniad unllawr cefn hygyrch newydd Demolition | Approved |
| C26/0112/41/DT Llanystumdwy | Cais am estyniad or ochr ddwyreiniol yr eiddo / Application for an extension on | Approved |
| C25/0862/39/DT Abersoch gyda Llanengan | Adeiladu estyniad deulawr a throsi atig. Construction of two storey extension an | Approved |
| C25/0621/26/LL Bontnewydd | Cais i godi sied storio amaethyddol. / Erection of agricultural storage shed. | Refused |
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 Gwynedd's 11,001 real decisions. Free, emailed in minutes.
Check my postcodeCompare Gwynedd's planning approval rates with neighbouring areas:
Dig deeper into Gwynedd'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 Gwynedd. Enter your postcode to instantly see approval rates for your ward and application type, based on 11,001 real decisions from Gwynedd 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 Gwynedd'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 11,001 planning decisions, the overall approval rate in Gwynedd is 88.6%. The national average across councils tracked by PlanningLens is 88.5%. Rates vary significantly by ward and application type.
PlanningLens has analysed 11,001 planning decisions from Gwynedd council. 9,751 were approved and 1,250 were refused. These figures cover decisions from January 2020 to the present.
The average approval rate in Gwynedd is 88.6%, 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 Gwynedd? 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.