Glasgow Garden Festival House   see wikipedia 

Shown below as originally constructed 

The project was part of the 1988 Glasgow Garden Festival, here's a description
It was built by the Architects & Building Co-Operative, a small Glasgow based co-op practice which Roberts was part of.
He described it as a sister project to the CAT Segal House.
Construction was undertaken by local lads on a job creation scheme ( YTS ? ) under the supervision of the late Rob Moss from CAT.

Later re-built at Monmail, in Fife - where it still stands.