Decommissioning Site, Trawsfynydd. LL41 4DT Data via plota.co.uk

Proposal

Installation of new underground cables, and cable sealing ends, shunt reactor, gantry and the widening of part of the existing access road within the fenced compound at Trawsfynydd substation and associated ancillary works as part of the Pentir to Trawsfynydd Reinforcement Project… Data via plota.co.uk

View original council record ↗

Application progress

Received
2 Jan 2026
Consultation
10 Feb 2026
Approved
15 Jul 2026

Approved on 15 Jul 2026 · Dirprwyiedig/Delegated · Last checked 24 Jul 2026

Site constraints 50

Heritage

Parc a Gardd Hanesyddol (Y Lleoliad) / Historic Park and Garden (Setting)Parc a Gardd Hanesyddol / Historic Park and GardenTirwedd o Ddiddordeb Hanesyddol/ Landscape of Historical Landscape

Environment & risk

Ancient woodlandSafle Tirlenwi Hanesyddol / Historic Landfill Site

Planning designations

-2, TAN 5, PPW 10 para 6.827, TAN 6, TAN 23, PPW 10 para 5.4Awdurdod Cynllunio: APCE / Planning Authority: SNPAEnterprise Zone - TrawsfynyddFf, TAN 24, PPW 10 para 6.1Gwarchodfa Awyr Dywyll Ryngwladol / International Dark Sky ReserveHTC gan gynnwys Llwybrau Caniataol / PRoW including permissive pathsL; 1 / SP A; DP 1NP5/73/113NP5/73/113ANP5/73/113BNP5/73/113CNP5/73/113DNP5/73/113ENP5/73/16NP5/73/16'I'NP5/73/16BNP5/73/16CNP5/73/16DNP5/73/16ENP5/73/16FNP5/73/16GNP5/73/16JNP5/73/16KNP5/73/16LNP5/73/16MNP5/73/16NNP5/73/16PNP5/73/16QNP5/73/16RNP5/73/16SNP5/73/16TNP5/73/16UNP5/73/AD16HPPW para 6.4.20Priority Species / Rhywogaethau â BlaenoriaethRhywogaethau Ymledol / Invasive SpeciesSafle Bywyd Gwyllt Lleol / Local Wildlife SiteSP A; DP 1SP A; DP 1; DP 2; SP Ff; DP 8; SPG 7. TAN 24" "PPW para 6.1.20-21SP A; DP 1; SP D; SP Dd; SPG 6. TAN 5SP A; DP 1; SP D; SPG 6. TAN 5Trawsfynydd Snowdonia Enterprise Zone AllocationWC Act, TAN 5 para 4.6.2, SPG Nature Conservation and Biodiversity

Constraints recorded by the council for this site. Documents on the council site ↗

Work with planning data? Every application in Snowdonia - and every UK council - as a live feed or API. About Plota's data service

Important details

Council
Snowdonia
Application type
Full
Postcode
LL41 4DT
Received
2 Jan 2026
Validated
2 Jan 2026
Ward
Trawsfynydd ED
Parish
Maentwrog
Case officer
Show
Target decision
20 Apr 2026
Decision
Permitted with conditions
Decision date
15 Jul 2026
Decision level
Dirprwyiedig/Delegated
Agent
Laura Richardson

Consultation & key dates

Alt. reference
PP-14375500
Comments by
30 Jun 2026
Site notice
10 Feb 2026
Press notice
10 Jun 2026