Does a finished basement add value at sale?

A finished basement is uncommon in the Lowcountry given the high water table and flood zone construction rules across most of Charleston, Berkeley and Dorchester counties, so it rarely factors into a typical sale here the way it might elsewhere. What usually substitutes for that extra finished space locally is a converted garage, a bonus room over a garage, or additional square footage under an elevated home. Brian Beatty prices whatever extra finished space a property actually has against comparable local sales.