The following is a guide to Paul Allen’s 9.6 acre multi-mansion estate/campus on Mercer Island. It is on the west side of the Island about 4 miles south of the I-90 Bridge. It is directly across from Seattle’s Seward Park.
A – 4 buildings ~200 ft from water: 10,680 sq ft main building with gym and 2 indoor tennis courts; 5,220, 4,210, and 2,050 sq ft guest houses; and 12+ car garages for an antique and race car museum and guest parking.
B – Mother’s house, ~50 feet from water, 11,300 sq ft plus 7 car garage.
C – Catamaran, Dragonfly, to drag-and-fly helicopters.
D – Main house including attached indoor pool and lakefront building to the north and wood garden/lakefront house to the south, 9,890 sq ft.
E– Concert hall theater and guest facilities, 11,560 sq ft.
F – 1,750 sq ft house with 100 ft waterfront acquired in 2006 for $5.2 million.
The mansion is on pages 64 and 65 in Lake Washington 130 Homes.