13 February 2026 · Delegated - Principal Planner (A Morgan, Interim Director of Planning and Building Control)
Clonaige, Douglas Road, Castletown, Isle Of Man, IM9 1th
The proposal involves erecting first floor extensions to the northeast and northwest sides of the existing two-storey detached house, demolishing and replacing the conservatory with a new single storey extension to the northwest featuring ground floor and roof terraces, and altering windows across all elevations with n…
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The officer assessed the proposal against General Policy 2, Strategic Policy 3 and 5, and Environment Policy 42, concluding it complies as 'the design is coherent and contextually appropriate, preserv…
General Policy 2
Requires development to respect amenity, character, trees, and landscape. Officer found proposal compliant as extensions are proportionate, materials match prevailing finishes, privacy mitigated by obscure glazing and screens per (b),(c),(f),(g), with negligible biodiversity harm and tree protection ensured.
Strategic Policy 3 - To respect the character of our towns and villages
Safeguards character of existing towns and villages. Proposal strengthens streetscape relationship with gables and subordinate massing, improving contribution to Douglas Road cluster.
Spatial Policy 5
Ensures high standards of design and appearance. Contemporary updates with balanced openings and coherent form deemed contextually responsive, reflecting local finishes.
Environment Policy 42 - character and need to adhere to local distinctiveness
Adheres to local distinctiveness and character. Scheme delivers uplift to dwelling's appearance without harming residential area's established character.
Time limit
The development hereby approved shall be begun before the expiration of four years from the date of this decision notice. Reason: To comply with Article 26 of the Town and Country Planning (Development Procedure) Order 2019 and to avoid the accumulation of unimplemented planning approvals.
Obscure glazing to ensuite windows
The proposed first floor windows for the Ensuite on the southwest elevation serving Bedroom 2, shown on Drawing Nos. 2304/04 - Proposed Plans, Section & Elevations, shall be glazed with obscure glass to Pilkington Level 5 or equivalent and permanently retained as such. Reason: To safeguard the amenities of adjoining occupiers from overlooking and loss of privacy.
Privacy wall to terrace
Prior to the use of the first-floor terrace approved as part of this application, the privacy wall shown on drawing No. 2304/04 - Proposed Plans, Section & Elevations, which shall have a minimum height of 1.8m and erected on the northeast elevation of the terrace shall be installed and permanently retained thereafter. Reason: To safeguard the amenities of adjoining occupiers from overlooking and loss of privacy.
Materials approval
Prior to the commencement of the development hereby approved, a schedule of external materials and finishes, including manufacturer's details and specifications for render, cladding, roof tiles, fenestrations, and rainwater goods, shall be submitted to and approved in writing by the Department. The development shall be carried out strictly in accordance with the approved details and retained as such thereafter. Reason: To ensure the development is carried out to the highest standards of design and appearance, in the interests of visual amenity and compliance with Strategic Policy 5 and General Policy 2(b, c and g).
Tree Protection Plan
Prior to the commencement of development hereby approved, a Tree Protection Plan which shall show details of tree protection measures for the development be submitted to and approved in writing by the Department. The tree protection measures shall be fully implemented and retained for the duration of the construction process. Within the Construction Exclusion Zones identified on this drawing, nothing shall be stored, placed or disposed of above or below ground, the ground level shall not be altered, no excavations shall be made, no mixing of cement or use of other contaminating materials or substances shall take place, nor shall any fires be lit. Any retained tree which within five years of the approved development being occupied or completed (whichever is the later) dies, are removed or become seriously damaged or diseased shall be replaced by a similar species, of a size to be first approved in writing by the Department, during the next planting season or in accordance with a programme of replacement to be agreed in writing with the Department. Reason: To safeguard the existing trees and planting to be retained within the site.
External lighting scheme
Prior to the installation of new external lighting on the site, a detailed external lighting scheme shall be submitted to and approved in writing by the Department, following consultation with the Airport Authority. The submitted scheme shall include: o Detailed drawings of all proposed lighting columns, fittings and mounting heights o Luminance levels, light spill contours, orientation, and hours of operation o Assessment of potential impacts on aviation safety, including glare, upward light, and distraction to aircraft on approach or take off o Mitigation measures to ensure lighting does not adversely affect the public safety zone or safeguarded surfaces The development shall be carried out strictly in accordance with the approved lighting scheme. Reason: To ensure external lighting does not compromise aviation safety within the public safety zone or safeguarded airspace.
No issues with proposed modifications regarding flight safety, but registered interest in external lighting, construction methodology, and wildlife hazard management
