19 February 2026 · Delegated - Principal Planner (A Morgan)
22, Queen Street, Castletown, Isle Of Man, IM9 1pa
Ms Tamzin Lawrence applied to erect a small single-storey flat-roof extension (12.6m²) at the rear of her end-terrace two-storey dwelling at 22 Queen Street, Castletown, to create a dining room/sunroom with better garden access.
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The officer assessed the proposal against Environment Policy 35 and Section 18(4) of the Act, concluding it has an acceptable impact on the Conservation Area's character as the flat-roof extension is …
Environment Policy 35
Requires proposals in conservation areas to preserve or enhance character and appearance. Officer tested the flat-roof extension against Section 18(4) of the Act; despite flat roofs not being typical, the reduced scale, rear yard siting, and screening by outrigger and boundaries ensure no harm, preserving overall Conservation Area character.
General Policy 2
Sets general development standards including visual amenity (b), neighbouring amenity (c), and good design (g). Assessed for no overbearing/overshadowing due to single-storey height, reduced size versus approved precedent, and existing boundary screening limiting views between properties.
Strategic Policy 4
Protection of built heritage and landscape conservation. Relevant to Conservation Area context but not explicitly tested beyond ENV35.
Spatial Policy 5
Promotes good design. Applied generally to the proposal's subservient scale and materials matching existing.
Environment Policy 42
Designed to take into account local character and identity. Supports assessment of proposal blending with existing render and grey roof palette.
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.
Materials
The extension hereby approved shall be finished with painted render external walls, dark grey coloured flat roof with rooflight, and white upvc doors and retained as such thereafter. Reason: the application has been assessed on this basis in the interest of character and appearance of the site and surrounding area.
do not oppose
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