43 Hazel Tree Close Radyr Cardiff CF15 8RS Data via plota.co.uk

25/03000/CLPUD - Cert of Lawfulness Proposed (s192) Approved

Proposal

Single storey rear extension Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
30 Dec 2025
✓
Approved
22 Jan 2026
✗
Appeal dismissed
26 Feb 2026

Approved on 22 Jan 2026 · Delegated to Group Leader · Last checked 2 Oct 2026

Site constraints 1

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 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 £294,500 in November 2023. Detached house, freehold.

8 November 2023£294,500
27 March 2002£120,000

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

Building

Floor area73 m² (786 sq ft)
Energy ratingD (57 out of 100), could reach B
PropertyDetached house, 5 habitable rooms
Built1983 to 1990
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in June 2023, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Cardiff
Application type
Cert of Lawfulness Proposed (s192)
Postcode
CF15 8RS
Received
30 Dec 2025
Validated
30 Dec 2025
Ward
RADYR AND MORGANSTOWN
Case officer
Show
Decision
Permission Granted
Decision date
22 Jan 2026
Decision level
Delegated to Group Leader
Appeal
Dismissed · 26 Feb 2026 · Written Representations · Inspectorate case 3376261 ↗
Applicant
Show
Agent
Draw the Line Design

How this decision compares

Decided in 23 days from validation, 27 days faster than Cardiff's median of 50 for extensions. Approved, as 94% of extensions here are.

68%decided within 8 weeks
94%approved
650decided in the last year

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

Public comments

No public comments yet.

Last counted 2 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14574407
Planning Portal ref
PP-14574407
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.