20 Dimity Street is a 5 storey tower block in the Renfrewshire town of Johnstone. It is near the much bigger high rise schemes of Provost Close and Craigdonald Place and is the only 5 storey block left in the town after a comprehensive purge of 15 Mid-rise buildings in the town undertaken in 2004. Flats are on the ground floor with maisonettes on the 2nd and 4th floors. The maisonettes have balconies.