29 January 2026 · Delegated
Ballachrink Mill, Old Castletown Road, Santon, Isle Of Man, IM4 1he
Permission was granted to replace an existing single-storey extension on the northwest elevation of Ballachrink Mill, Old Castletown Road, Santon. The works also include alterations to the pedestrian access and installation of a flue. During the application, the proposal was amended to reduce the size and scale of the extension, and additional tree information was provided to clarify what works were involved. The site sits within a wooded valley leading towards Port Grenaugh, but a site visit found no significant mature trees that would need to be removed. The application was decided by a Principal Planner under delegated authority and was approved subject to three conditions.
The application was approved by a Principal Planner acting under delegated authority. The proposal was amended during the process to reduce the size and scale of the extension, and additional tree information was submitted to clarify the extent of works. A site visit confirmed that no significant mature trees would be removed.
extensions to traditional properties
requiring any new development to respect the traditional qualities including form, proportion and appearance of the original building
Housing Policy 15: The extension or alteration of existing traditionally styled properties in the countryside will normally only be approved where these respect the proportion, form and appearance of the existing property. Only exceptionally will permission be granted for extensions which measure more than 50% of the existing building in terms of floor space (measured externally).
general standards towards acceptable development visual and neighbouring amenity, highway safety
(b) (c) (g) (h) and (i)
General Policy 2: Development which is in accordance with the land-use zoning and proposals in the appropriate Area Plan and with other policies of this Strategic Plan will normally be permitted, provided that the development: (a) is in accordance with the design brief in the Area Plan where there is such a brief; (b) respects the site and surroundings in terms of the siting, layout, scale, form, design and landscaping of buildings and the spaces around them; (c) does not affect adversely the character of the surrounding landscape or townscape; (d) does not adversely affect the protected wildlife or locally important habitats on the site or adjacent land, including water courses; (e) does not affect adversely public views of the sea; (f) incorporates where possible existing topography and landscape features, particularly trees and sod banks; (g) does not affect adversely the amenity of local residents or the character of the locality; (h) provides satisfactory amenity standards in itself, including where appropriate safe and convenient access for all highway users, together with adequate parking, servicing and manoeuvring space; (i) does not have an unacceptable effect on road safety or traffic flows on the local highways; (j) can be provided with all necessary services; (k) does not prejudice the use or development of adjoining land in accordance with the appropriate Area Plan; (l) is not on contaminated land or subject to unreasonable risk of erosion or flooding; (m) takes account of community and personal safety and security in the design of buildings and the spaces around them; and (n) is designed having due regard to best practice in reducing energy consumption. 6.3 Development outside of areas zoned for development
promotes development taking account of locality in design
pment. 8.13.2 The extent of formal open space with in settlement boundaries in the South is identified on the Proposals Map (Map 3) and Inset Maps (Maps 4-7). The Isle of Man Strategic Plan (Environment Policy 42) seeks to protect these open spaces and indicates that: 8.13.3 "Inappropriate backland development, and the removal of open or green spaces which contribute to the visual amenity and sense of place of a partic ular area will not be permitted.''
promote good design and use of local materials and character
supports principle of extensions to existing properties in the countryside
prevent criminal activity and reduce spread of fire
conserve the Island's water
Condition 1
The development hereby approved shall be begun before the expiration of four years from the date of this decision notice.
Condition 2
Prior to occupation of the extension hereby approved the external walls of the approved extension must be finished in traditionally laid stone and retained as such thereafter.
Condition 3
With exception to any solar panel or rooflights, the pitched roof of the extension hereby approved shall be finished in dark coloured slate or dark coloured slate effect roof covering and retained as such thereafter.
