11 Hatherleigh Drive Newton Swansea SA3 4TP Data via plota.co.uk

2026/1679/PLD - Lawful Dev. Cert - Proposed Being Considered

Proposal

Addition of a pitched roof with rear and side rooflights to rear conservatory, and alterations to conservatory walls and fenestration. Addition of a rear wood burner flue. Increase in depth of rear patio area with new access steps to the rear garden (application for a Certificate of Proposed Lawful Developement) Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
12 Oct 2026
✓
Validated
13 Oct 2026
Decision
Expected by 8 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 3 Dec 2026, from Swansea's recent extensions.

Site constraints 1

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 ↗
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 14 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 4

Last sold for £192,500 in January 2025. Terraced house, freehold.

24 January 2025£192,500
22 May 2012£144,000
20 June 2008£145,000
15 August 1997£46,000

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

Building

Floor area54 m² (581 sq ft)
Energy ratingD (65 out of 100), could reach B
PropertyEnd-terrace house, 2 habitable rooms
Built1976 to 1982
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in May 2024, 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
Lawful Dev. Cert - Proposed
Postcode
SA3 4TP
Received
12 Oct 2026
Validated
13 Oct 2026
Ward
Mumbles - Area 2
Parish
Mumbles Community Council
Case officer
Show
Target decision
8 Dec 2026
Applicant
Show
Agent
Rewbridge Design Ltd.

Decision outlook

Day 15 of the 56-day target. Swansea usually decides extensions by day 51.

Day 1541 days to the 56-day target
75%decided within 8 weeks
83%approved
484decided 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.

Last counted 21 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15285259
Planning Portal ref
PP-15285259
Statutory expiry
8 Dec 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.