10 July 2019 · Delegated - Principal Planner Chris Balmer
King Williams College, King Williams College Grounds, Castletown, Isle Of Man, IM9 1tp
The proposal involves re-roofing the pitched slate roof using salvaged slates where possible and matching new slates, replacing leadwork with Code 5 lead to LDA standards, adding 300mm insulation in layers, re-finishing flat roofs with fibreglass systems over insulation, and replacing six hardwood windows replicating o…
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The officer assessed whether the works would adversely affect the building's acknowledged historic interest, given its Registered status (RB 185).
Environment Policy 32
Requires that extensions or alterations to a Registered Building do not detrimentally affect its special architectural or historic character. The officer assessed that window replacements replicate originals and roofing uses matching materials, preserving character.
Environment Policy 34
Prefers traditional materials in maintenance, alteration or extension of pre-1920 buildings. New slates must match existing in colour, thickness and size (condition 2), and windows/leadwork replicate originals using hardwood and Code 5 lead.
Environment Policy 35
Applies to Conservation Areas to preserve or enhance character. Noted but not directly applied as site is outside Castletown Conservation Area.
RB/5 Alterations and Extensions
Presumption against alterations affecting Registered Building character unless justified; requires demonstration of necessity and impact assessment. Officer found convincing case due to repair needs, replication of features, and benefits for maintenance/energy efficiency, with no cumulative harm from successive minor works.
Time limit
The works hereby granted registered building consent shall be begun before the expiration of four years from the date of this consent. Reason: To comply with paragraph 2(2)(a) of schedule 3 of the Town and Country Planning Act 1999 and to avoid the accumulation of unimplemented registered building consents.
Materials matching
Any new slates to be applied must match the existing in colour, thickness and size. Reason: To protect the historical integrity of the building.
Department of Infrastructure (DOI) Highways Division has no highways interest in the application.
Department of Infrastructure (DOI) Highways Division
No ObjectionNo Highways Interest; NHI on 17.05.19
