Blue Hills Old Stone Lane Undy Monmouthshire NP26 3EJ Data via plota.co.uk

DM/2026/00780 - Householder Approved

Proposal

Proposed single-storey rear extension, alterations to the existing garage including replacement of the roof with a pitched roof, replacement windows and doors, external alterations and associated works. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
26 Jun 2026
✓
Consultation
29 Jul 2026
✓
Approved
14 Aug 2026

Approved on 14 Aug 2026 · Delegated Officer · Last checked 14 Aug 2026

Site constraints 2

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
National infrastructure project 1471 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.

Building

Floor area118 m² (1,270 sq ft)
Energy ratingC (69 out of 100)
PropertyDetached house, 7 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in September 2025, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Householder
Postcode
NP26 3EJ
Received
26 Jun 2026
Validated
26 Jun 2026
Ward
Magor East With Undy
Parish
Magor With Undy Town Council
Target decision
21 Aug 2026
Decision
Approve
Decision date
14 Aug 2026
Decision level
Delegated Officer
Applicant
Show

How this decision compares

Decided in 49 days from validation, about the council's usual 50 days. 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.

10 neighbours consulted · Last counted 14 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15033991
Planning Portal ref
PP-15033991
Neighbours
1 Jul 2026
Consultation
29 Jul 2026
Comments by
12 Aug 2026
Site or press notice
1 Jul 2026
Statutory expiry
21 Aug 2026
Env. assessment
No

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.