5 Llandennis Green Cyncoed Cardiff CF23 6JX Data via plota.co.uk

26/01759/CLPUD - Cert of Lawfulness Proposed (s192) Approved

Proposal

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

View original council record ↗Last checked

Application progress

✓
Received
19 Aug 2026
✓
Approved
3 Sept 2026

Approved on 3 Sept 2026 · Delegated to Group Leader · Last checked 8 Sept 2026

Site constraints 2

Local nature reserve 273 m away: Nant Fawr Corridor
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
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.

Building

Floor area173 m² (1,862 sq ft)
Energy ratingC (72 out of 100)
PropertyDetached house, 8 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in January 2026, 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
CF23 6JX
Received
19 Aug 2026
Validated
19 Aug 2026
Ward
CYNCOED
Case officer
Show
Decision
Permission Granted
Decision date
3 Sept 2026
Decision level
Delegated to Group Leader
Applicant
Show
Agent
FRANKS AND TOMS ARCHITECTS LIMITED

How this decision compares

Decided in 15 days from validation, 35 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 8 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15168220
Planning Portal ref
PP-15168220
Env. assessment
No

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.