43 Mansion Gardens Penllergaer Swansea SA4 9GY Data via plota.co.uk

2026/1176/FUL - Full Plans Refused

Proposal

Single storey rear part side extension Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
15 Jul 2026
✓
Consultation
22 Jul 2026
✗
Refused
9 Sept 2026
Appeal
Not lodged

Refused on 9 Sept 2026 · Delegated Officer Panel · Last checked 10 Sept 2026

Site constraints 5

Registered park or garden: Penllergaer
Nationally designated heritage. Its significance and setting carry great weight.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Scheduled monument 77 m away: Remains of Astronomical Observatory at Penllergaer
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.
Also on the record
1 listed building within 150 m; Radon affected area, class 4; Coalfield, development low risk area.
Not affected
Outside flood zones 2 and 3

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, 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 £195,000 in January 2020. Semi-detached house, freehold.

29 January 2020£195,000New build

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

Building

Floor area79 m² (850 sq ft)
Energy ratingB (83 out of 100)
PropertySemi-detached house
Built2020
HeatingRoom heaters, electric
WallsAverage thermal transmittance 0.18 W/m²K

From the energy performance certificate lodged in January 2020, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Swansea
Application type
Full Plans
Postcode
SA4 9GY
Received
15 Jul 2026
Validated
15 Jul 2026
Ward
Penllergaer - Area 1
Parish
Penllergaer Community Council
Case officer
Show
Target decision
9 Sept 2026
Decision
Refuse
Decision date
9 Sept 2026
Decision level
Delegated Officer Panel
Applicant
Show

How this decision compares

Decided in 56 days from validation, 4 days slower than Swansea's median of 52 for extensions. Refused, as 18% of extensions here are.

75%decided within 8 weeks
82%approved
431decided in the last year

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

Public comments

No public comments yet.

2 neighbours consulted · Last counted 10 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15057509
Planning Portal ref
PP-15057509
Neighbours
16 Jul 2026
Consultation
22 Jul 2026
Comments by
20 Aug 2026
Site or press notice
30 Jul 2026
Statutory expiry
9 Sept 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.