Planning Applications in Trawsfynydd

Planning authority: Eryri (Snowdonia) National Park

Search current and historic planning applications in Trawsfynydd, Snowdonia, published by Eryri (Snowdonia) National Park - 1 application in the last 30 days and 17 in the last 12 months. Explore them on the map, apply detailed filters, or receive free alerts for new proposals.

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Showing 17 applications
NP5/73/444B 6 Aug 2026 Decided

The Old Tannery, Maentwrog. LL41 4HU

Conversion and extension of an outbuilding to create a self-contained annexe forming ancillary accommodation

Full Snowdonia 6 Aug 2026
NP5/78/601 2 Jun 2026 Decided

Arwel, Pen-y-Garreg, Trawsfynydd. LL41 4UB

Rebuilding of wall and installation of new windows

Full Snowdonia 2 Jun 2026
NP5/73/LB74V 1 Jun 2026 Decided

Plas Dol-y-Moch, Maentwrog. LL41 3YT

Erection of 5 shelters, with 3 measuring 3.22m by 3.22m and 2 measuring 3.22m by 4.26m

Full Snowdonia 1 Jun 2026
NP5/73/LB74Y 1 Jun 2026 Decided

Plas Dol-y-Moch, Maentwrog. LL41 3YT

Erection of a new single-storey standalone building to provide additional pupil and staff accommodation

Full Snowdonia 1 Jun 2026
NP5/78/608 14 May 2026 Approved

Ty'n-y-Coed, Trawsfynydd. LL41 4UW

Installation of dormer window and erection of sun lounge extension

Full Snowdonia 14 May 2026
NP5/73/L184B 22 Apr 2026 Extension of Time Agreed

Gelli Dywyll, Cwm Cynfal, Llan Ffestiniog. LL41 4RA

Demolition of existing dwelling and lean-to and the erection of a new replacement 2 storey dwelling and installation of septic tank (Re-submission)

Full Snowdonia 22 Apr 2026
NP5/78/LB43E 16 Apr 2026 Approved

White Lion Inn, Trawsfynydd. LL41 4UB

Replacement of domestic oil tank within curtilage of Listed Building

Full Snowdonia 16 Apr 2026
NP5/73/LB74W 17 Feb 2026 Extension of Time Agreed

Plas Dol-y-Moch, Maentwrog. LL41 3YT

Listed Building Consent for the erection of single storey infill extension within existing kitchen wing courtyard along with minor alterations, and mi...

Listed Building Consent Snowdonia 17 Feb 2026
NP5/73/LB74X 17 Feb 2026 Extension of Time Agreed

Plas Dol-y-Moch, Maentwrog. LL41 3YT

Erection of single storey infill extension within existing kitchen wing courtyard and minor alterations

Full Snowdonia 17 Feb 2026
NP5/78/L114B 10 Feb 2026 Withdrawn

Ty'n Twll, Trawsfynydd. LL41 4TS

Restoration of the existing slate roof, installation of rooflights and construction of a new porch

Full Snowdonia 10 Feb 2026
NP5/78/LB412S 6 Feb 2026 Decided

Rhiw Goch Inn, Bronaber, Trawsfynydd. LL41 4UY

Discharge Condition No.8 (programme of archaeological work) attached to Listed Building Consent NP5/78/LB7R dated 25/01/2021

Discharge of Conditions Snowdonia 6 Feb 2026
NP5/78/LB412T 6 Feb 2026 Decided

Rhiw Goch Inn, Bronaber, Trawsfynydd. LL41 4UY

Discharge Condition No.8 (programme of archaeological work) attached to Planning Consent NP5/78/LB7S dated 15/01/2021

Discharge of Conditions Snowdonia 6 Feb 2026
NP5/73/287V 2 Jan 2026 Approved

Decommissioning Site, Trawsfynydd. LL41 4DT

Installation of new underground cables, and cable sealing ends, shunt reactor, gantry and the widening of part of the existing access road within the ...

Full Snowdonia 2 Jan 2026
NP5/78/L225A Archive 1 Dec 2025 Approved

Beehive, Fronwnion Street, Trawsfynydd, LL41 4SE

Installation of 14 solar panels on front facing roof

Snowdonia 1 Dec 2025
NP5/78/603 Archive 5 Nov 2025 Approved

4 Bro Islyn, Trawsfynydd. LL41 4PD

Installation of ground-based air source heat pump to rear

Snowdonia 5 Nov 2025
NP5/78/600 Archive 3 Nov 2025 Approved

Llys Dewi, Station Road, Trawsfynydd. LL41 4TE

Installation of 4 rooflights on main roof of dwelling, construction of two storey rear extension, and erection of detached garage

Snowdonia 3 Nov 2025
NP5/78/122A Archive 17 Sept 2025 Approved

Feidiog, Station Road, Trawsfynydd. LL41 4TE

Erection of a flat roof single storey extension to rear of property

Snowdonia 17 Sept 2025
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Data updated daily. Source: Eryri (Snowdonia) National Park planning portal.