45 Maes Y Castell Llanrhos Llandudno LL30 1NG Data via plota.co.uk

0/53411 - Full Approved

Proposal

Proposed single storey rear extension Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
4 May 2026
✓
Validated
15 May 2026
✓
Approved
24 Jun 2026

Approved on 24 Jun 2026 · Case Officer · Last checked 19 Sept 2026

Site constraints 2

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 ↗
Also on the record
SSSI about 387 m away: Bwlch Mine.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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.

Sales history 2

Last sold for £480,000 in March 2024. Detached house, freehold.

1 March 2024£480,000
28 November 2003£295,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area228 m² (2,454 sq ft)
Energy ratingD (57 out of 100), could reach C
PropertyDetached house, 10 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in September 2022, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Conwy
Application type
Full
Postcode
LL30 1NG
Received
4 May 2026
Validated
15 May 2026
Ward
Deganwy
Parish
Cyngor Tref Conwy Town Council
Case officer
Show
Decision
Approved With Conditions 24-06-2026
Decision date
24 Jun 2026
Decision level
Case Officer

How this decision compares

Decided in 40 days from validation, 5 days faster than Conwy's median of 45 for extensions. Approved, as 87% of extensions here are.

76%decided within 8 weeks
87%approved
149decided in the last year

Plota live figures for extensions decided by Conwy in the last twelve months, from validation. Conwy decision record →

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.