15 Brynteg Rhiwbina Cardiff CF14 6TS Data via plota.co.uk

26/02104/HSE - Householder Planning Permission Registered

Proposal

Proposed single storey rear extension to the existing semi-detached dwelling including minor internal and external modifications Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Appeal allowed
19 Jun 2026
✓
Received
6 Oct 2026
✓
Consultation
8 Oct 2026
Decision
Expected by 1 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 19 Nov 2026 and 30 Nov 2026, from Cardiff's recent extensions.

Comments are open until 29 Oct 2026

Comment on this application ↗

Site constraints 3

Scheduled monument 65 m away: Twmpath, Rhiwbina
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
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 ↗
Also on the record
SSSI 386 m away: Fforestganol a Chwm Nofydd.
Not affected
Outside flood zones 2 and 3 · No listed building at the site

Checked on 9 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 1

Last sold for £280,000 in July 2009. Semi-detached house, freehold.

29 July 2009£280,000

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

Building

Floor area98 m² (1,055 sq ft)
Energy ratingD (68 out of 100), could reach C
PropertySemi-detached house, 5 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

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
Householder Planning Permission
Postcode
CF14 6TS
Received
6 Oct 2026
Validated
6 Oct 2026
Ward
RHIWBINA
Case officer
Show
Appeal
Allowed · 19 Jun 2026 · Written Representations · Inspectorate case 6005726 ↗
Applicant
Show
Agent
Taliesin Architecture Ltd

Decision outlook

Day 22 of the 56-day target. Cardiff usually decides extensions by day 50.

Day 2234 days to the 56-day target
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.

4 neighbours consulted · Last counted 22 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15275306
Planning Portal ref
PP-15275306
Neighbours
8 Oct 2026
Consultation
8 Oct 2026
Comments by
29 Oct 2026
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.