Since the 1980s, his primary media has been pastel, of which he says: "It is a fragile, delicate powder, so light that you can blow it away, but at the same time you can make something strong, demanding, and structurally tough.
Indeed, many of his wall drawings exist for only a short period of time before they are weathered by natural elements or painted over in preparation for the next gallery show.
[citation needed] Tremlett's palette has also been influenced over the years by his travel to execute site-specific works in places such as Malawi, India, Italy and Texas.
In 2011 he was asked to create a work for the entrance of the Manton Hall at Tate Britain titled 'Drawing for Free Thinking' it spans 450 sq.
In 2015 was made an 'Honorary Citizen of La Morra, Piedmont' A small town above the Capella Della Brunate, where he and Sol LeWitt worked in 1999.
Major Catalogues include In Space / Nello Spazio, 2021 - published by Palazzo Butera, Palermo, Sicily - Walls 2001-2010, 2010, Forte di Bard Aosta, Italy - David Tremlett Retrospective 1969/2006, 2006 - Musee Grenoble/Pecci Museum, Prato It.