Glan Geirionnydd, Llanrhychwyn. LL27 0YX Data via plota.co.uk

NP4/32/388B - Full Decided

Proposal

Extension Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
10 Jul 2026
✓
Decided

Decided · Dirprwyiedig/Delegated · Last checked 24 Sept 2026

Site constraints 27

SDdGA / SSSIHTC gan gynnwys Llwybrau Caniataol / PRoW including permissive pathsACA / SACSafle Bywyd Gwyllt Lleol / Local Wildlife SiteADMMynediad AgoredMynediad AgoredPriority Species / Rhywogaethau â BlaenoriaethAwdurdod CynllunioGwarchodfa Awyr Dywyll Ryngwladol / International Dark Sky ReserveRhywogaethau Ymledol / Invasive SpeciesCofnod Amgylchedd Hanesyddol / Historic Environment RecordUnknown - Restricted Local Access RoadD, TAN 5, PPW 10 para 6.42, TAN 5, PPW 10 para 6.8E(1), E(2), E(3), TAN 5, PPW 10 para 6.4FF, 8, PPW para 6.1.28L; 1 / SP A; DP 1SP A; DP 1WC Act, TAN 5 para 4.6.2, SPG Nature Conservation and BiodiversitySP A; DP 1; SP D; SPG 6. TAN 5PPW para 6.4.20
Snowdonia National Park
The park authority decides applications here. Great weight to conserving the landscape; major development restricted.
Landscape, scenic beauty and wildlife carry great weight, and major development is only allowed in exceptional circumstances.
Radon affected area, class 6
An estimated 30% or more of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.
From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.
UKHSA radon ↗
SDdGA / SSSICouncil record
Recorded by the council for this site.
Council site ↗
HTC gan gynnwys Llwybrau Caniataol / PRoW including permissive pathsCouncil record
Recorded by the council for this site.
Council site ↗
ACA / SACCouncil record
Recorded by the council for this site.
Council site ↗
Safle Bywyd Gwyllt Lleol / Local Wildlife SiteCouncil record
Recorded by the council for this site.
Council site ↗
ADM: Tywodfaen a Craig Igneaidd / MSA: Sandstone and Igneous RockCouncil record
Recorded by the council for this site.
Council site ↗
Mynediad Agored: Open Country / Open Access: Open CountryCouncil record
Recorded by the council for this site.
Council site ↗
Mynediad Agored: Coedwigoedd Ymroddedig / Open Access: Dedicated ForestsCouncil record
Recorded by the council for this site.
Council site ↗
Priority Species / Rhywogaethau â BlaenoriaethCouncil record
Recorded by the council for this site.
Council site ↗
Awdurdod Cynllunio: APCE / Planning Authority: SNPACouncil record
Recorded by the council for this site.
Council site ↗
Gwarchodfa Awyr Dywyll Ryngwladol / International Dark Sky ReserveCouncil record
Recorded by the council for this site.
Council site ↗
Rhywogaethau Ymledol / Invasive SpeciesCouncil record
Recorded by the council for this site.
Council site ↗
Cofnod Amgylchedd Hanesyddol / Historic Environment RecordCouncil record
Recorded by the council for this site.
Council site ↗
Unknown - Restricted Local Access RoadCouncil record
Recorded by the council for this site.
Council site ↗
D, TAN 5, PPW 10 para 6.4Council record
Recorded by the council for this site.
Council site ↗
2, TAN 5, PPW 10 para 6.8Council record
Recorded by the council for this site.
Council site ↗
E(1), E(2), E(3), TAN 5, PPW 10 para 6.4Council record
Recorded by the council for this site.
Council site ↗
FF, 8, PPW para 6.1.28Council record
Recorded by the council for this site.
Council site ↗
L; 1 / SP A; DP 1Council record
Recorded by the council for this site.
Council site ↗
SP A; DP 1Council record
Recorded by the council for this site.
Council site ↗
WC Act, TAN 5 para 4.6.2, SPG Nature Conservation and BiodiversityCouncil record
Recorded by the council for this site.
Council site ↗
SP A; DP 1; SP D; SPG 6. TAN 5Council record
Recorded by the council for this site.
Council site ↗
PPW para 6.4.20Council record
Recorded by the council for this site.
Council site ↗
Also on the record
Special area of conservation 349 m away: Mwyngloddiau Fforest Gwydir / Gwydyr Forest Mines; 1 listed building within 150 m; SSSI 349 m away: Mwyngloddiau a Chreigiau Gwydyr.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area103 m² (1,109 sq ft)
Energy ratingF (22 out of 100), could reach C
PropertyDetached house, 5 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, oil
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in September 2022, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Snowdonia
Application type
Full
Postcode
LL27 0YX
Received
10 Jul 2026
Validated
10 Jul 2026
Ward
Betws-y-Coed and Trefriw ED
Parish
Trefriw
Case officer
Show
Target decision
3 Sept 2026
Decision level
Dirprwyiedig/Delegated
Applicant
Show
Agent
Matthew Jones Architects

Consultation & key dates

Alt. reference
PP-15019003
Statutory expiry
17 Aug 2026

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.