59 Heathlands Ystrad Mynach Hengoed CF82 7NZ Data via plota.co.uk

26/0074/HH - Householder Application Approved

Proposal

Erect one and a half storey side extension, single storey rear extension, extend existing front and rear dormer windows and associated works Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
2 Feb 2026
✓
Consultation
5 Feb 2026
✓
Approved
20 Mar 2026

Approved on 20 Mar 2026 · Delegated · Last checked 5 Jul 2026

Associated applications 2

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.

Sales history 1

Last sold for £232,000 in June 2022. Semi-detached house, freehold.

10 June 2022£232,000

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

Building

Floor area79 m² (850 sq ft)
Energy ratingC (70 out of 100), could reach B
PropertySemi-detached house, 4 habitable rooms
Built1976 to 1982
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in April 2022, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Caerphilly
Application type
Householder Application
Postcode
CF82 7NZ
Received
2 Feb 2026
Validated
2 Feb 2026
Ward
Ystrad Mynach
Case officer
Show
Target decision
30 Mar 2026
Decision
Granted
Decision date
20 Mar 2026
Decision level
Delegated
Applicant
Show
Agent
Utopia Design

How this decision compares

Decided in 46 days from validation, 7 days faster than Caerphilly's median of 53 for extensions. Approved, as 76% of extensions here are.

75%decided within 8 weeks
76%approved
195decided in the last year

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

Consultation & key dates

Neighbours
4 Feb 2026
Consultation
5 Feb 2026
Comments by
26 Feb 2026
Statutory expiry
30 Mar 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.

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.