12 Clos Y Cornicyll Llanilid Pontyclun Rhondda Cynon Taf CF72 4AS Data via plota.co.uk

26/0551/FUL - Full Application Refused

Proposal

retrospective planning application to retain works to rear garden Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
22 Jun 2026
✓
Validated
26 Aug 2026
✗
Refused
14 Oct 2026
Appeal
Not lodged

Refused on 14 Oct 2026 · Delegated Decision · Last checked 15 Oct 2026

Site constraints 2

Coal mining development high risk area
Recorded coal mining features at or near the surface. Most planning applications here need a coal mining risk assessment.
From the Mining Remediation Authority, formerly the Coal Authority. The development high risk area marks recorded coal mining features at or near the surface: mine shafts and adits, shallow workings, mine gas and former opencast sites. Most planning applications there need a coal mining risk assessment; householder applications, changes of use and some minor works are exempt. Mine entry positions come from old plans and can be out by several metres, and unrecorded workings can exist anywhere in the coalfield.
Coal mining risk assessments ↗
Radon affected area, class 5
An estimated 10 to 30% 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 ↗
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, 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 1

Last sold for £329,995 in April 2024. Detached house, freehold.

26 April 2024£329,995New build

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

Building

Floor area103 m² (1,109 sq ft)
Energy ratingB (83 out of 100), could reach A
PropertyDetached house
Built2024
HeatingBoiler and radiators, mains gas
WallsAverage thermal transmittance 0.21 W/m²K

From the energy performance certificate lodged in January 2024, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Rhondda
Application type
Full Application
Postcode
CF72 4AS
Received
22 Jun 2026
Validated
26 Aug 2026
Ward
Brynna And Llanharan
Case officer
Show
Target decision
21 Oct 2026
Decision
Refuse
Decision date
14 Oct 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Atrium Planning Consultants

How this decision compares

Decided in 49 days from validation, about the council's usual 51 days. Refused, as 3% of extensions here are.

78%decided within 8 weeks
97%approved
242decided in the last year

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

Public comments

No public comments yet.

8 neighbours consulted · Last counted 15 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
16 Sept 2026
Statutory expiry
21 Oct 2026
Env. assessment
No

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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.