A basement garage is a garage that is partially or mostly below grade in single-family residences, town houses and duplexes:
Enter a basement garage as follows:
Enter the entire basement area (including the area of the garage) for the basement section to include the cost for excavation, floor structure, supporting columns and basement walls.
Add the cost of the basement garage finish (including garage door and finished on common interior walls and ceilings) by entering the size of the basement garage in square feet for this component
Instead of this component, you can use components 883 (Basement Garage, Single), 884 (Basement Garage, Double) or 885 (Basement Garage, Triple) to add the additional costs associated with the garage.