Gwynedd Council approves 88.6% of planning applications, based on 11,039 real decisions analysed from the council’s public planning portal. The national average across all councils tracked by PlanningLens is 88.6%. Gwynedd is closely in line with the national average.
According to PlanningLens analysis of 789 decided applications, Gwynedd Council approved 87.6% of planning applications in 2025. Across 11,039 decisions analysed since January 2020, the overall approval rate in Gwynedd is 88.6%; the national average across UK councils tracked by PlanningLens is 88.6%.
Source: PlanningLens (planninglens.co.uk) analysis of Gwynedd council planning portal records · Updated August 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 | 9,780 | 1,259 | 11,039 | 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 | 49 | 362 | 86.5% |
| Porthmadog (West) | 281 | 32 | 313 | 89.8% |
| Criccieth | 273 | 36 | 309 | 88.3% |
| Llanengan | 213 | 53 | 266 | 80.1% |
| Tregarth & Mynydd Llandygai | 233 | 30 | 263 | 88.6% |
| Efailnewydd / Buan | 209 | 31 | 240 | 87.1% |
| Abersoch gyda Llanengan | 179 | 44 | 223 | 80.3% |
| Groeslon | 187 | 36 | 223 | 83.9% |
| Llanwnda | 189 | 32 | 221 | 85.5% |
| Bethel a'r Felinheli | 196 | 23 | 219 | 89.5% |
| Penrhyndeudraeth | 204 | 14 | 218 | 93.6% |
| Arllechwedd | 198 | 19 | 217 | 91.2% |
| Seiont (Caernarfon) | 204 | 9 | 213 | 95.8% |
| Y Felinheli | 181 | 29 | 210 | 86.2% |
| Aberdaron | 186 | 23 | 209 | 89.0% |
| Abermaw | 190 | 16 | 206 | 92.2% |
| Llanberis | 188 | 18 | 206 | 91.3% |
| Pwllheli (North) | 192 | 13 | 205 | 93.7% |
| Pentir | 177 | 22 | 199 | 88.9% |
| Deiniol (Bangor) | 180 | 17 | 197 | 91.4% |
| Menai (Caernarfon) | 183 | 9 | 192 | 95.3% |
| Abererch | 167 | 21 | 188 | 88.8% |
| Llanrug | 168 | 18 | 186 | 90.3% |
| Clynnog | 149 | 27 | 176 | 84.7% |
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 3.0pp 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 |
|---|---|---|
| C26/0351/44/DT Porthmadog (East) | Dymchwel sied bresennol a chodi estyniad deulawr i gefn yr eiddo. Demolition of | Approved |
| C24/0755/19/LL Bontnewydd | Gwasanaethau ger ymyl ffordd a gwaith cysylltiedig. Roadside services and associ | Refused |
| C26/0286/14/DT Menai (Caernarfon) | Codi balconi hygyrch i ddefnyddwyr cadair olwyn ar gefn yr eiddo. Erection of a | Approved |
| C25/0285/14/CR Canol Tref Caernarfon | Addasiadau mewnol i drosi'r lloriau uchod yn ddau uned byw / Internal alteration | Approved |
| C26/0354/14/DT Menai (Caernarfon) | Balconi llawr cyntaf blaen ynghyd รข drysau gwydr newydd. New first floor balcony | Approved |
| C26/0318/18/DT | Estyniad unllawr i'r drychiad blaen. Single storey extension to the front elevat | Approved |
| C23/0491/03/LL Diffwys & Maenofferen | Trosi llawr daear ac islawr i fwyty Conversion of ground floor and basement to r | Approved |
| C26/0238/15/LL Llanberis | Codi ty annedd newydd. Erection of new dwelling | Refused |
| C25/0671/14/LL Menai (Caernarfon) | Codi ffens newydd 2400mm o uchder ogwmpas rhan o ffin y cae chwarae. Erection of | Approved |
| C26/0164/23/DT Cwm y Glo | Estyniadau, newidiadau a gwaith cysylltiedig arfaethedig Proposed extensions, al | 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 Gwynedd's 11,039 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 11,039 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 11,039 planning decisions, the overall approval rate in Gwynedd is 88.6%. The national average across councils tracked by PlanningLens is 88.6%. Rates vary significantly by ward and application type.
PlanningLens has analysed 11,039 planning decisions from Gwynedd council. 9,780 were approved and 1,259 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.