The dowager in Murakami’s 1Q84 is a very poised and elegant lady whose business acumen has served her well. She lives in what I imagine to be a beautiful and tasteful estate called ‘the Willow House,’ though her home is really more of a mansion. I mean, it has an attached glass house just for hosting rare butterflies, a mirrored room for ballet, and a sunroom that doubles as a massage room. Through the protagonist, Aomame, we catch glimpses of other rooms and outdoor spaces in the house. Each setting seems sparsely furnished yet luxurious. After all, in urban Japan, space is a luxury.
I ran across a house on curbed that I think would be a great Willow House (if it were set in Napa Valley). It is a midcentury home built in 1962 by the architect William Thomas Brooks, and is called the Petal House 🙂 There are a lot more pictures on the curbed link and a nice description of the grounds and some architectural highlights on zillow.