In 1981 the Trust converted the Kirkaldy building into a museum.

The project also created a 'working community' of small engineering firms.

The museum was created on the ground floor and basement to commemorate Kirkaldy and his major contribution to Victorian engineering.

The refurbishment included an early use of intumescent paint to preserve the appearance of cast iron columns.  

On completion the Trust managed the building for four years, whereupon the museum was leased for a peppercorn rent to a separate trust and the building was sold with protective covenants.