In order to retain the original facade, the construction firm, Leader Builders, had to shore it up while preparing the site so work could begin, says owner Pete Antonow.
"We had to go back to the front crawl space to underpin the existing foundation. We also needed to provide strut supports for wind loading."
The builders dug 4ft-long trenches spaced 4ft apart under the existing foundation. Concrete was poured under the footing and reinforcing steel inserted for extra stability. Once the concrete had set, work continued on the remaining areas until the entire foundation was supported.
With the original facade stabilized, the builders were able to turn their attention to completing the more aesthetic aspects of its restoration.
"Each of the windows was removed and all of the sill stones replaced, as well as any broken bricks," says Antonow. "One of the bigger jobs was repointing the masonry, which was never intended to be exposed. We also replaced the capping on top of the trim and side walls."
Another of the intricacies associated with the project was the merging of both structures to house the curtain wall.
"The glazed wall is actually mounted independently of the structure. A steel I-beam frame was built, which supports the glazing, and is attached to the exterior walls of the house," says Antonow. "A temporary wall was constructed while the glazed one was being manufactured."