6 Piercefield Terrace Devauden Road St Arvans NP16 6EW Data via plota.co.uk

DM/2026/00611 - Certificate of Prop Lawful Use or Dev Approved

Proposal

Rear single storey extension. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
11 May 2026
✓
Validated
12 May 2026
✓
Approved
23 Jul 2026

Approved on 23 Jul 2026 · Delegated Officer · Last checked 24 Jul 2026

Site constraints 8

Wye Valley National Landscape
Great weight to conserving the landscape; major development restricted.
Previously an area of outstanding natural beauty, which is still the designation in law. Since 2023 authorities must seek to further its purpose, not merely have regard to it.
St Arvans conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
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 ↗
Scheduled monument 137 m away: St Arvan's Church Cross-slab
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Also on the record
4 listed buildings within 150 m; Registered park or garden 181 m away: Piercefield Park; Special area of conservation 489 m away: Wye Valley Woodlands / Coetiroedd Dyffryn Gwy (Wales); SSSI 489 m away: Pierce, Alcove And Piercefield Woods.
Not affected
Outside flood zones 2 and 3

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.

Building

Floor area87 m² (936 sq ft)
Energy ratingF (26 out of 100)
PropertyEnd-terrace house, 5 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, dual fuel (mineral and wood)
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2009, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Certificate of Prop Lawful Use or Dev
Postcode
NP16 6EW
Received
11 May 2026
Validated
12 May 2026
Ward
St Arvans
Parish
St Arvans Community Council
Target decision
7 Jul 2026
Decision
Approve
Decision date
23 Jul 2026
Decision level
Delegated Officer
Applicant
Show

How this decision compares

Decided in 72 days from validation, 22 days slower 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 →

Consultation & key dates

Alt. reference
PP-14920389
Planning Portal ref
PP-14920389
Statutory expiry
7 Jul 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.