Aberdeen City: Register of plans submitted to Plans & Town Planning Committees Continued by Town Planning Department in their Town Planning Application Registers (CA/30/2). Also known as the House Plans Books. Record of building warrants submitted to the Streets or Plans Committee. The books have an alphabetical sequence which corresponds to the reference number written on the plans themselves: so L22320 is listed in Book L. The numerical sequence preceding the house book letter runs across the house plan books from 1879 to 1949. 1879-1949