Clear Mount Vinegar Hill Undy Monmouthshire NP26 3EJ Data via plota.co.uk

DM/2026/00657 - Non Material Amendment Approved

Proposal

One and a half storey side extension containing a family room at ground floor level with mezzanine floor at first floor level. Inclusion of a dressed pennant stone external wall finish to front elevation of an existing side elevation, porch and front elevation of the proposed one and a half storey side extenstion. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
21 May 2026
✓
Validated
1 Jun 2026
✓
Approved
9 Jun 2026

Approved on 9 Jun 2026 · Delegated Officer · Last checked 7 Sept 2026

Site constraints 3

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 443 m away: Gwent Levels - Magor and Undy; National infrastructure project 1345 m away: Future Energy Llanwern Solar Project, at pre-application.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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 £543,000 in May 2021. Detached house, freehold.

12 May 2021£543,000
1 May 2009£215,000

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

Building

Floor area149 m² (1,604 sq ft)
Energy ratingC (73 out of 100), could reach B
PropertyDetached house, 6 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

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

Work with planning data?

Every application in Monmouthshire - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Important details

Application type
Non Material Amendment
Postcode
NP26 3EJ
Received
21 May 2026
Validated
1 Jun 2026
Ward
Magor East With Undy
Parish
Magor With Undy Town Council
Target decision
29 Jun 2026
Decision
Approve
Decision date
9 Jun 2026
Decision level
Delegated Officer
Applicant
Show

How this decision compares

Decided in 8 days from validation, 42 days faster than Monmouthshire's median of 50 for extensions. Approved, as 96% of extensions here are.

60%decided within 8 weeks
96%approved
216decided in the last year

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

Public comments

No public comments yet.

Last counted 7 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
29 Jun 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.