This
application for a rear dormer was refused on the grounds that
Portland Street, which is comprised of late 18th and mid to late
19th century terraced housing of high aesthetic value, makes a
positive contribution to the character and appearance of the
Central Historic Core conservation area. Although, as with many
traditional areas, it has experienced some modern additions, such
as dormers, that have had a detrimental impact on the historic
roofscape, the northern part of the terrace, within which the
application property is located, has experienced much less
intrusion in its roofscape with only one small dormer and some
rooflights in situ. As a result, a much greater sense and
appreciation of the historic roof form is possible with large
expanses of roof slate in evidence. For these reasons the LPA
wished to resist further interventions into the roofscape of the
terrace. It was also considered that the proposed dormer, with its
contemporary design, would be alien to the historic context and
would appear as a dominant and discordant feature with the use of
zinc and cedar for external cladding and the window shape and
dormer proportions being out of character. The Inspector considered
that the proposed use of large glazing panels, modern materials and
a flat roof deviate from the traditional architecture of No 8.
However, the vertical emphasis of the rear glazing is sympathetic
to that of the main elevation windows and, given the scale of the
host dwelling, the proportions appear commensurate, do not result
in a top-heavy appearance, and will allow original roof features to
still be appreciated.
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