39 Maple Crescent Trefechan Merthyr Tydfil CF48 2EH Data via plota.co.uk

P/26/0172 - Full Approved

Proposal

Engineering works to lower ground level to create patio area and enable the construction of a single storey rear extension and alterations Data via plota.co.uk

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View original council record ↗Last checked 7 Oct 2026, 02:01

Street View

Application progress

✓

Received

28 Jul 2026

✓

Consultation

29 Jul 2026

✓

Approved

2 Sept 2026

Approved on 2 Sept 2026 · Delegated Decision · Last checked 9 Sept 2026

Documents

View the documents on the council's website ↗

Site constraints 3

Local nature reserve 108 m away: Cwm Taf Fechan Woodlands

Work nearby can need a habitats assessment.

Harm to a protected site is only accepted where there is no alternative and an overriding public interest.

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 ↗

SSSI 108 m away: Cwm Taf Fechan Woodlands

Natural England may need consulting, depending on what is proposed.

Sites of special scientific interest are the best wildlife and geological sites in the country. Development likely to harm one is rarely permitted.

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.

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Nearby new applications

9 Sept 2026

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P/26/0195

13 Jul 2026Approved

11 Linden Way Trefechan Merthyr Tydfil CF48 2EL

Two storey side extension

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Important details

Council: Merthyr Tydfil
Application type: Full
Postcode: CF48 2EH
Received: 28 Jul 2026
Validated: 28 Jul 2026
Ward: VAYNOR
Case officer: Show
Decision: Full Approval
Decision date: 2 Sept 2026
Decision level: Delegated Decision
Applicant: Show
Agent: Show

How this decision compares

Decided in 36 days from validation, 12 days faster than Merthyr Tydfil's median of 48 for extensions. Approved, as 95% of extensions here are.

This one36d

Council48d

UK55d

77%decided within 8 weeks

95%approved

58decided in the last year

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