Why make your ADU less than 750 sq. ft?

Making your ADU less than 750 sq. ft , enables you to pull a permit without having to pay the impact fees on your new ADU. It's also less than 800 Sq. Ft so you know it will have to be approved by the planning dept! These smaller houses are very economical to build, the ADU in this drawing for instance is 728 sq. ft. and sells for $295,875,00 (depending on finish materials)