input: [0] 1. [ILLINOIS COST MANUAL] The manual has categories for 1-Story, 1 ½- Story, 2-Story, etc. The value of each story is added together and each value includes the cost of a basement [REFINEMENT] Wood frame or masonry construction tables are used (any other type requires special research) [ATTRIBUTE] 
output: SQUARE FOOTAGE Ground floor square footage is calculated for each story (i.e. 2-Story assessor sq. ft. 1,250 when an appraisal sq.ft. would say 2,500)