This 1000 sq ft 2 bed / 2 bath / 2 car garage guest house was completed in just about a year from plans to C of O. The 2 ½ acres parcel had no problem accommodating the additional septic tank and leach field that was required for the construction of this guest house. Our draft person drew the plans and submitted them to the county for approval. The house was designed to match the existing home style with a few added comforts such as a heat pump to keep heating and cooling costs to a minimum. The cost per square foot to construct an ADU can be higher than a larger home because they often hold the same amenities in a tighter or more concentrated area.