The Saarinen HouseThe Eero Saarinen Family Home was listed last December and looks to be still on offer here. For a small $3.2 million you can enjoy this modern piece of history and the gorgeous views it offers. According to the listing, rentals are permissible.
Another listing that's caught my eye is the Robert Welch Home. I first saw the Mayorcas & Guest designed home in Taschen's 70s Decorative Art (pgs 82-85) and searched it out online. The home was listed here on June 18th so you better get it while you can - for $1.9 million.
Mayorcas & Guest on the edge of the Cotswolds