51 Park Avenue Whitchurch Cardiff CF14 7AP Data via plota.co.uk

26/00791/HSE - Householder Planning Permission Approved

Proposal

Demolition of existing sun room to rear of property and construction of new single storey rear and side extension. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
21 Apr 2026
✓
Consultation
27 Apr 2026
✓
Approved
2 Jun 2026

Approved on 2 Jun 2026 · Delegated to Group Leader · Last checked 5 Jul 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 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 area56 m² (603 sq ft)
Energy ratingD (63 out of 100), could reach C
PropertyDetached bungalow, 3 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in February 2026, 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
Cardiff
Application type
Householder Planning Permission
Postcode
CF14 7AP
Received
21 Apr 2026
Validated
21 Apr 2026
Ward
WHITCHURCH AND TONGWYNLAIS
Case officer
Show
Decision
Permission Granted
Decision date
2 Jun 2026
Decision level
Delegated to Group Leader
Applicant
Show
Agent
RDM Design & Build Ltd

How this decision compares

Decided in 42 days from validation, 12 days faster than Cardiff's median of 54 for demolitions. Approved, as 96% of demolitions here are.

57%decided within 8 weeks
96%approved
93decided in the last year

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

Consultation & key dates

Alt. reference
PP-14874397
Planning Portal ref
PP-14874397
Neighbours
27 Apr 2026
Consultation
27 Apr 2026
Comments by
18 May 2026
Env. assessment
No

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.