By 2015 Chase had returned to creating 3-dimensional on paper, on which he painted. He concentrated on water color as well, feeling size gave them an impact smaller works didn't have. All the latest work are in a 5' x 5' format. And the large works continued his concentration on the grid. Exhibitions at B.Lemercier, Paris and a large show at K.OSS Contemporary Art, Detroit have been highlights of his late period.