Llancaiach Isaf Farm
Consultation
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Introduction
We are consulting on proposals at Llancaiach Isaf Farm, Gelligaer Road, Nelson, Treharris, CF46 6EP.
The proposals comprise alterations and a single-storey rear and side extension to the existing farmhouse (including internal alterations), alongside the change of use and conversion of two existing agricultural barns to residential use, with associated access, parking, drainage, landscaping and public footpath diversion.
The site is a traditional farmstead located approximately
350m north-east of Nelson, within a rural agricultural landscape between
Nelson, Gelligaer and Trelewis. The proposals have been designed to make efficient use of the existing buildings and yard areas, while respecting the character of the farmstead and its countryside setting.
Development Proposals
The application will seek full planning permission for:
- Single-storey rear and side extension to the existing farmhouse, with internal alterations.
- Conversion of Barn A to a self-contained residential unit.
- Conversion of Barn B to a self-contained residential unit.
- Access improvements (including passing bays) and internal circulation.
- On-site parking and turning for each dwelling.
- Private garden / amenity space for each home.
- Sustainable drainage (SuDS) and associated drainage works.
- Landscaping, including retention and enhancement of existing green infrastructure features where possible.
- Public footpath diversion, to be progressed under a separate Public Path Order.
Consultation Documents
Existing Plans
03 - Existing Farmhouse Elevations and First Floor Plan
04 - Existing Farmhouse Ground Floor Plan
Proposed Plans
14 - Proposed Farmhouse Elevations
15 - Proposed Farmhouse Ground Floor Plan
16 - Proposed Farmhouse Upper Floors
18 - Proposed Barn B Elevations
19 - Proposed Barn B Ground Floor Plan
20 - Proposed Barn B First Floor Plan
25-01040 - PL01 Proposed Site Access Layout
25-01040 - SP01 Junction Swept Paths
Documents:
Planning, Design, Access, Green Infrastructure and Drainage Statement
Forms:
Notice under Article 2C and 2D
How to provide your Comments
We welcome your feedback on the draft proposals prior to submission to Caerphilly County Borough Council. Comments provided at this stage will not prejudice your ability to make representations to the Council once an application is submitted. Please note that comments may be placed on the public file.
Please provide comments by email or post:
Highlight Planning
15 Neptune Court
Vanguard Way
Cardiff
CF24 5PJ
We would welcome any comments you have on the consultation by 9th January 2026.
Comments and information received as part of this consultation will not be used for any purpose other than for consultation purposes relating to this potential development. Whilst your comments may be referred to within the planning submission, names will be redacted from responses and we do not share information provided with third parties outside of the project team and this process.