Twyn Hywel Energy Park Land North-West Of Caerphilly Data via plota.co.uk

25/0342/NCC - Development without complying with conds Approved

Proposal

Vary condition 2 of (Construct and operate up to 14 wind turbines and associated infrastructure including: hardstanding areas to include turbine foundations, crane hardstanding and laydown/storage area with associated micrositing allowances; electrical substation and control building with underground power cables; new access route connecting onto the A472; onsite access tracks, with pipeline and watercourse crossings; borrow pit(s); anemometer mast; temporary construction and storage compound with associated lay down areas near to the Site entrance; Habitat Management Area; and offsite works to facilitate the movement of abnormal loads such as the construction of over-run areas and temporary modifications to street furniture) to amend the approved plans to increase the rotor diameter of the wind turbines, increase the height of the on-site transformer, and enlarge the grid connection corridor Data via plota.co.uk

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View original council record ↗Last checked 21 Oct 2026, 10:31

Street View

Application progress

✓

Received

29 May 2025

✓

Validated

30 May 2025

✓

Consultation

11 Sept 2025

✓

Approved

14 Nov 2025

Approved on 14 Nov 2025 · Committee · Last checked 21 Oct 2026

Planning committee

Decided by Caerphilly Planning Committee on 12 Nov 2025.

Approved by 9 votes to 0

As officers recommended.

For9

Against0

Officers advised approval because the changes would have acceptable landscape, ecological, heritage, amenity and transport effects with conditions.
Community councils and residents raised concerns about turbine scale, landscape, wildlife, noise, shadow flicker, consultation and environmental effects.
The committee voted unanimously, with nine votes for and none against or abstaining, and granted permission subject to conditions.

Read how the committee decided The proposal, site history, officers’ assessment, consultation responses, objections, committee discussion, vote and decision.

Source: Plota analysis of Caerphilly's committee minutes of 12 Nov 2025.

Documents 61

Decision & officer reports 18

Consultation & comments 20

Site constraints 3

Agricultural land, grade 4

Poor quality farmland, not best and most versatile. Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. A site survey can differ.

Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.

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 21 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.

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Important details

Council: Caerphilly
Application type: Development without complying with conds
Received: 29 May 2025
Validated: 30 May 2025
Ward: Nelson
Case officer: Show
Target decision: 14 Nov 2025
Decision: Granted
Decision date: 14 Nov 2025
Decision level: Committee
Applicant: Show
Agent: Savills (UK) Ltd

How this decision compares

Decided in 168 days from validation, 140 days slower than Caerphilly's median of 28 for amendments. Approved, as 88% of amendments here are.

This one168d

Council28d

UK47d

77%decided within 8 weeks

88%approved

7%go to committee

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

Public comments

7comments received

6 objecting1 neutral

86% object · above the UK average of 74%

2 neighbours consulted · Last counted 21 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours: 4 Jun 2025
Consultation: 11 Sept 2025
Comments by: 29 Oct 2025
Site or press notice: 8 Oct 2025
Committee: 12 Nov 2025
Statutory expiry: 25 Jul 2025
Env. assessment: No