8 Sunnymead Oakhill Radstock Somerset BA3 5AX Data via plota.co.uk

2026/0383/HSE - Householder Application Approved

Proposal

Single storey rear extension Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
26 Feb 2026
✓
Validated
10 Mar 2026
✓
Approved
15 Apr 2026

Approved on 15 Apr 2026 · Delegated Decision · Last checked 6 Jul 2026

Site constraints 4

Habitat network: Network Expansion Zone
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Radon affected area, class 6
An estimated 30% or more 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
Inside the Oakhill built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · Not green belt · 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.

Sales history 2

Last sold for £200,000 in May 2021. Semi-detached house, freehold.

17 May 2021£200,000
17 September 2004£157,500

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

Building

Floor area108 m² (1,163 sq ft)
Energy ratingD (67 out of 100)
PropertyEnd-terrace house, 5 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in July 2011, 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
Mendip
Application type
Householder Application
Postcode
BA3 5AX
Received
26 Feb 2026
Validated
10 Mar 2026
Ward
Mendip Hills Division
Parish
Ashwick Parish Council
Case officer
Show
Target decision
5 May 2026
Decision
Approval
Decision date
15 Apr 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Heckley Consulting

How this decision compares

Decided in 36 days from validation, 18 days faster than Mendip's median of 54 for extensions. Approved, as 88% of extensions here are.

66%decided within 8 weeks
88%approved
364decided in the last year

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

Consultation & key dates

Alt. reference
PP-14688215
Planning Portal ref
PP-14688215
Comments by
1 Apr 2026
Statutory expiry
5 May 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.

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.