1 Raglan Terrace Abergavenny Monmouthshire NP7 9SR Data via plota.co.uk

DM/2026/00895 - Certificate of Prop Lawful Use or Dev Approved

Proposal

I would like to use our double garage for use as a habitable annexe to Main House, in order to accommodate my daughter and partner who are returning to Abergavenny from Bristol. The garage is currently used as gym, garden room and study Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
21 Jul 2026
✓
Validated
27 Jul 2026
✓
Approved
27 Jul 2026

Approved on 27 Jul 2026 · Delegated Officer · Last checked 6 Sept 2026

Site constraints 6

Nutrient neutrality catchment: River Usk
New homes and overnight accommodation must show nutrient neutrality before approval.
Natural England advice: extra wastewater in these catchments harms protected habitats, so schemes must offset their nutrient load, usually through credits.
Abergavenny 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 ↗
Also on the record
Registered park or garden 150 m away: Coldbrook House; Special area of conservation 411 m away: River Usk / Afon Wysg; SSSI 411 m away: River Usk (Lower Usk) / Afon Wysg (Wysg Isaf).
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 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 1

Last sold for £175,000 in June 2009. Terraced house, freehold.

12 June 2009£175,000

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

Building

Floor area112 m² (1,206 sq ft)
Energy ratingC (71 out of 100)
PropertyDetached house
Built2025
HeatingBoiler and underfloor heating, mains gas
WallsAverage thermal transmittance 0.21 W/m²K

From the energy performance certificate lodged in September 2026, 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
NP7 9SR
Received
21 Jul 2026
Validated
27 Jul 2026
Ward
Pen Y Fal
Parish
Abergavenny Town Council
Target decision
21 Sept 2026
Decision
Approve
Decision date
27 Jul 2026
Decision level
Delegated Officer
Applicant
Show

How this decision compares

Decided in 0 days from validation, 50 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 6 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15098002
Planning Portal ref
PP-15098002
Statutory expiry
21 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

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.