High Sunderland (pictured), the Rig, and the Garlton unit at Hermanflat Hospital have all been listed said Historic Scotland, 'in recognition of their regional and national importance'.
Historic Scotland's head of listing, Deborah Mays, said each of the buildings was 'visually striking and immediately recognisable as the work of Womersley.'
'Scotland, and Galashiels in particular, should be immensely proud of Womersley. People often assume that listed buildings should be made of stone and be very traditional, but it is vital that Modern architecture is protected too.
'It demonstrates that Scotland continues to produce exceptional designers, builders and engineers who move beyond accepted ideas and challenge what we expect from our homes, offices and public buildings,' added Mays.
The hat-trick of listings follows Historic Scotland's decision last year ( Concrete Scottish football stadium listed ) to list Galashiels' Womersley-designed football stadium.