Thomas Lennox Watson (21 August 1850 – 12 October 1920),[1] FRIBA, was a Scottish architect and interior designer.

[2] Watson was born in Glasgow on 21 August 1850, the son of Charles and Elizabeth.

[1] Professor Alexander McGibbon explained how Watson established patents for hollow walls and monolithic construction in concrete.

These were tested in a cottage in Kilbirnie, with walls hardened on the flat which were raised vertically in around ninety minutes.

[1] Watson died from cancer on 12 October 1920, at 11 Loudon Terrace, the house in which he was born 70 years earlier.