4 Millbrook Court Undy Monmouthshire NP26 3JN Data via plota.co.uk

DM/2026/00855 - Householder Approved

Proposal

Single story side extension. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
14 Jul 2026
✓
Validated
15 Jul 2026
✓
Consultation
21 Jul 2026
✓
Approved
2 Sept 2026

Approved on 2 Sept 2026 · Delegated Officer · Last checked 2 Sept 2026

Site constraints 5

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
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 287 m away: Gwent Levels - Magor and Undy; Scheduled monument 248 m away: St. Mary's Churchyard Crosses, Magor; National infrastructure project 1445 m away: Future Energy Llanwern Solar Project, at pre-application.
Not affected
No listed building 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 4

Last sold for £260,000 in August 2017. Detached house, freehold.

23 August 2017£260,000
11 May 2015£213,000
11 November 2008£205,000
14 September 2007£215,000

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

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Important details

Application type
Householder
Postcode
NP26 3JN
Received
14 Jul 2026
Validated
15 Jul 2026
Ward
Magor East With Undy
Parish
Magor With Undy Town Council
Target decision
9 Sept 2026
Decision
Approve
Decision date
2 Sept 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.

3 neighbours consulted · Last counted 2 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15037273
Planning Portal ref
PP-15037273
Neighbours
20 Jul 2026
Consultation
21 Jul 2026
Comments by
11 Aug 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