12 July 2022 · Director of Planning and Building Control (Jennifer Chance)
Mannanan House, Market Square, Castletown, Isle Of Man, IM9 1rb
The application sought consent to replace existing double glazed UPVC casement windows on the front and side elevations of Mannanan House, a three-storey limestone building with slate roof in Castletown's Market Square and Conservation Area, with new double glazed UPVC sliding sash windows.
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The proposals fail the tests of Section 16 of the Town and Country Planning Act 1999 because installing UPVC windows does not preserve the building's special architectural and historic interest, as hi…
Town and Country Planning Act 1999 Section 16 Registered buildings: supplementary provisions
Requires special regard to preserving the building or its setting or features of special architectural or historic interest. The officer assessed that UPVC windows fail to preserve the historic timber sash windows on front and side elevations.
Strategic Policy 4
Requires proposals to protect or enhance the fabric and setting of Registered Buildings. Judged failed as UPVC installation does not preserve or enhance the building's fabric.
Environment Policy 32
Prohibits extensions or alterations to Registered Buildings that detrimentally affect their special character. UPVC windows deemed to have detrimental effect, similar to prior unauthorised installation.
Environment Policy 35
Permits only development preserving or enhancing Conservation Area character. Proposal harms the area's appearance due to inappropriate windows on prominent building.
Planning Policy Statement 1/01 Policy RB/5 Alterations and Extensions
Requires justification for alterations affecting registered buildings and presumption against them unless convincing case made. No justification provided for UPVC impact.
Planning Circular 1/98, The Alteration and Replacement of Windows
For Registered Buildings, replacement windows must match originals in materials, opening method, and design. Proposal matches opening but not timber materials or detailed design.
no highways interest in the application
Highway Services Division has no highways interest (NHI) in application 22/00673/CON, indicating no objection.
Highway Services Division
No Objectionthere is no Highways HDC interest (NHI) in: 22/00673/CON; after being assessed in terms of highway safety, highway operation and car parking these were found to have no significant negative impact upon the highway network
