16, 18 and 20 Tower Street, Edinburgh

16, 18 and 20 Tower Street in Edinburgh are early 19th-century warehouses. These narrow four- and five-storey buildings are connected by a wall from a demolished warehouse and a modern link at the rear. They are constructed from cream sandstone, with coursed and squared rubble and droved dressings.

The southeast range is a narrow four-storey warehouse with a two-by-four bay layout, which has been reduced in height by one storey and now features a modern flat roof with single windows. The northwest range is a narrow five-storey warehouse with a two-by-seven bay layout. It has hoist doors and a timber hoist in the right bay of the northeast elevation, while the left bay has blocked windows. There are loading doors in the centre bay of the interior courtyard elevation and single windows throughout.

The southwest (rear) elevation shows that an adjoining building was demolished around the mid-20th century, leaving only the party wall. This elevation features protruding joists, blocked openings, and a segmental-arched former pend opening that leads to the courtyard. Most windows are barred, with some having internal wooden shutters and wooden lintels. The northwest range has a piended slate roof.

Inside the northwest range, there are chamfered timber posts and beam construction, along with flagged stone stairs that may be fireproof. Hoist machinery is located in the attic of the northwest range.