This took four years and included a whole new wing.
The building will include a 38-story tower and a 10-floor wing.
The house was later extended between 1808 and 1814 to include new rear wings.
Facilities that were added include several wings and a performing arts center.
He said it would include a new wing with 126 rooms, doubling the hotel's size.
The school was expanded to include a fourth wing, dedicated to science classes, in 1994.
The design was to have included an experimental wing.
The buildings were extended some time later, to include a new wing as the enrollment increased to around 650 pupils.
In 1994 the building was extended to include a new wing and its faciliteies were updated.
Changes made to allow for turboprop power include larger wings and tail surfaces.