Commercial uses up to 5,000 square feet of gross building floor area: $300; from 5,001 to 20,000 square feet: $400, plus $0.02/square foot of gross building floor area; greater than 20,000 square feet: $500, plus $0.03/square foot of gross building floor area. Escrow fee for nonresidential application not involving new buildings: one to 25 parking spaces: $500; 26 to 400 spaces: $750; more than 100 spaces: $1,000.