Great location in a charming and quiet area.
I stayed in the cottage for a week to work at the archives around the corner. Besides being perfectly situated to the archives the area is also quite perfect for those little everyday routines. Just by Kew Gardens station you have a well equipped whole foods store and a few restaurants and cafes. Fx Antipodea has great coffee and breakfast although a little bit to the pricy side.
Rose showed me some nice routes for running but there is also a great yoga centre just 1 tube stop away down in Richmond (Yoga venue).