new roof
extension above a grade-II listed georgian townhouse
Our client owned the top floor
apartment of a townhouse located on Upper Berkeley Street
in Westminster. With the addition of a single-storey roof
extension they doubled the size of their apartment and
added a further two bedrooms, bathroom and terrace.
Achieving planning consent required a sensitive design
approach to be taken as roof extensions are not usually
allowed within the Portman Estate Conservation Area.
After the
project was successfully completed in 2013 the client
said;
"We
went with Stagg Architects after comparing a number of
local firms and couldn't be more delighted with our
choice. We were very well guided and supported throughout
the whole process which greatly reduced our stress and
increased our confidence. We also went through a very
detailed and thorough contractor selection process for
the construction phase which resulted in an excellent
schedule of work with fixed pricing, and a contractor
that stuck to this as a result of Stagg Architects
brilliant project management. I strongly recommend Stagg
Architects to anyone looking for an experienced, creative
and results-focused architect."
01 The completed mansard roof
extension (second building from right)
02 Proposed section showing the
mansard form of the new space
03 The new roof extension comprises
a high-ceiling open-plan living area at upper level
04 Daylight and sunlight illuminate
the space from both sides and through the rooflights
above
05 A new shower room and bathroom
were created at the lower level
06 Light shelf with concealed
fitting built into the arching roof form
07 View from the kitchen towards the
sitting area
08 Rear of the roof extension viewed
from a new terrace
09 The existing roof terrace prior
to construction
10 The steel frame in position
11 The roof extension completed in
natural blue-grey Welsh slate