Kettle’s Yard, Cambridge
The Kettle's Yard gallery was conceived as a “living place where works of art could be enjoyed” by Jim & Helen Ede. Entry to the house is gained by pulling on a door bell, continuing a tradition of 'open house' started by Ede.
This link is to an interesting article about Jim Ede and the birth of Kettle’s Yard.

One of my favourite galleries & place to visit is Hauser & Wirth in Bruton, Somerset. Amazing gallery and the gardens were designed by “PIET OUDOLF, THE INTERNATIONALLY-RENOWNED LANDSCAPE DESIGNER FROM THE NETHERLANDS. HE DESIGNED THE OUDOLF FIELD – A LARGE PERENNIAL MEADOW SITUATED BEHIND THE GALLERY BUILDINGS. At the top of Oudolf Field sits the Radić Pavilion. Designed by Chilean architect Smiljan Radić, it was installed at Hauser & Wirth Somerset in March 2015, following its unveiling the previous year at the Serpentine Gallery 2014 Pavilion. Radić Pavilion