Blenheim House, 9 Henry Street, City Centre
9 Henry Street is a Grade II mid-19th century house, which whilst formerly in use as an office has been returned to residential use post-2014, situated within the Bath City-Wide Conservation Area and World Heritage Site. It forms part of an eclectic terraced early to mid-19th century streetscape, and is associated with the adjoining Grade II Former New Jerusalem Church.
We are supportive of proposed remedial works to the inner roof slopes to remove the existing artificial slate to be replaced in a natural slate. The use of a natural slate (even though Spanish rather than Welsh) would reinstate a more sympathetic and traditional material finish in keeping with the special interest of a listed building, and would match the existing material treatment across the outer roof slopes (currently a natural slate). Replacement of the later, non-historic roof coverings and reintroduction of a natural slate in this location is considered to be an enhancement.
We recommend that where stripping works to the roof are being undertaken, this would be a positive opportunity for the installation of roof insulation, or upgrading of any roof insulation already in situ, to improve the thermal efficiency of the building.