36 Penallta Road Ystrad Mynach Hengoed CF82 7AN Data via plota.co.uk

25/0777/COU - Change of Use Refused

Proposal

Change the use of disused office into 5 bed HMO Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
10 Nov 2025
✓
Validated
13 Nov 2025
✓
Consultation
18 Mar 2026
✗
Refused
27 Mar 2026
Appeal
Not lodged

Refused on 27 Mar 2026 · Delegated · Last checked 7 Oct 2026

Documents 22

All documents on the council site ↗

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
Coalfield, development low risk area.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 7 October 2026. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, 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 area121 m² (1,302 sq ft)
Energy ratingE (asset rating 117)
UseNon-residential Institutions: Primary Health Care Building
HeatingHeating and Natural Ventilation

From the energy performance certificate lodged in September 2024, the latest held for this property. The building may have changed since. View the certificate

Work with planning data?

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

About Plota's data service

Important details

Council
Caerphilly
Application type
Change of Use
Postcode
CF82 7AN
Received
10 Nov 2025
Validated
13 Nov 2025
Ward
Ystrad Mynach
Case officer
Show
Target decision
27 Mar 2026
Decision
Refused
Decision date
27 Mar 2026
Decision level
Delegated
Applicant
Show
Agent
Creation Design Wales
Freehold owner
Show

How this decision compares

Decided in 134 days from validation, 79 days slower than Caerphilly's median of 55 for full applications. Refused, as 27% of full applications here are.

57%decided within 8 weeks
73%approved
101decided in the last year

Plota live figures for full applications decided by Caerphilly in the last twelve months, from validation. Caerphilly decision record →

Public comments

6comments received
6 objecting

100% object · above the UK average of 74%

2 neighbours consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
13 Nov 2025
Consultation
18 Mar 2026
Comments by
8 Apr 2026
Site or press notice
28 Nov 2025
Statutory expiry
8 Jan 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.

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.