Caddell performed a total renovation of a 150-year-old landmark. Caddell surrounded the building with a 20-ft-deep concrete foundation “moat-wall” to isolate the building from the site’s un-compacted soil. Existing foundations were then undercut, almost nine million pounds of granite were removed, and a new basement and foundation system that included 120 seismic isolators was installed. Caddell replaced all mechanical, electrical, and plumbing infrastructure. Exterior renovations included masonry and stone repairs, replacing copper and slate roofs, and refurbishing windows. Inside, Caddell restored the elaborate interiors to their Victorian splendor. Highlight: Awarded National ABC Excellence in Construction Merit Award.