4 Augusta Crescent, Penarth Data via plota.co.uk

2026/00620/FUL - Full Planning Application Approved

Proposal

Removal of rear single-storey lean-to. Construction of rear, single-storey, mono-pitched extension. Replacement of the side flat roof with a pitched slate roof to match the existing. Conversion of garage into home office. Rear single-storey, mono-pitched extension of existing garage. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
19 Aug 2026
✓
Approved
19 Oct 2026

Approved on 19 Oct 2026 · Delegated · Last checked 19 Oct 2026

Site constraints 3

Also on the record
Radon affected area, class 2; Special protection area about 485 m away: Severn Estuary (Wales); SSSI about 480 m away: Penarth Coast.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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 area115 m² (1,238 sq ft)
Energy ratingE (41 out of 100), could reach C
PropertySemi-detached house, 6 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in May 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
Glamorgan
Application type
Full Planning Application
Postcode
CF64 5RL
Received
19 Aug 2026
Validated
19 Aug 2026
Ward
Plymouth
Parish
Penarth Town Council
Case officer
Show
Target decision
14 Oct 2026
Decision
Approved
Decision date
19 Oct 2026
Decision level
Delegated
Applicant
Show
Agent
Glen Thomas Architecture Ltd

How this decision compares

Decided in 61 days from validation, 5 days slower than Glamorgan's median of 56 for extensions. Approved, as 91% of extensions here are.

51%decided within 8 weeks
91%approved
334decided in the last year

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

Consultation & key dates

Comments by
15 Sept 2026
Committee
19 Oct 2026

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.