Hi Janice, just an attempt here to clarify the answers you have been given.......
Mary had it correct, square footage is listed in terms of "above grade living space", so the 1779 is just as she stated. To add for a full finished bsmnt without having the builder's or assessor's square footage of it, you can "guesstimate" it as about the same as the first floor which would give us a "rough estimate" of about 900 s.f. additional (about half of the 1779). Since the 2nd flr may be smaller than the first, the 1st flr (and bsmnt) may be more like 1200 s.f. In this case we are given two finished room measurements in the bsmnt totalling about 650 s.f. Therefore, the 2199 figure certainly does NOT include any basement footage, but clearly is the above grade total of 1779 s.f. plus the 420 s.f. of garage which equals exactly 2199.
--above grade living area (1st & 2nd flr combined) equals 1779 s.f.
--bsmnt square footage is "guesstimated" btwn 900-1200 with at least 650 s.f. finished
--garage is 420 s.f.
Hope this helps.