51 St Isan Road Heath Cardiff CF14 4LW Data via plota.co.uk

26/01221/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
12 Jun 2026
✓
Approved
29 Jun 2026

Approved on 29 Jun 2026 · Delegated to Group Leader · Last checked 19 Jul 2026

Site constraints 1

Also on the record
Radon affected area, class 3.
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 3

Last sold for £397,000 in April 2026. Semi-detached house, freehold.

29 April 2026£397,000
20 May 2005£229,400
22 March 2002£141,000

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

Building

Floor area112 m² (1,206 sq ft)
Energy ratingD (64 out of 100), could reach B
PropertySemi-detached house, 5 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2018, 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
CF14 4LW
Received
12 Jun 2026
Validated
12 Jun 2026
Ward
HEATH
Case officer
Show
Decision
Permission Granted
Decision date
29 Jun 2026
Decision level
Delegated to Group Leader
Applicant
Show
Agent
Prichard Barnes Architects

How this decision compares

Decided in 17 days from validation, 32 days faster than Cardiff's median of 49 for extensions. Approved, as 94% of extensions here are.

68%decided within 8 weeks
94%approved
602decided in the last year

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

Consultation & key dates

Alt. reference
PP-15007615
Planning Portal ref
PP-15007615
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.