Regarding the basement, I don't know what code is in your area, but where
I
live, a basement cannot be counted as living space unless the home was
originally constructed that way. It can be listed as "finished", but
nothing
more. Thus, all improvements go towards sellability, but do not reap
dollar one
for increasing living space as the finished rooms cannot be counted as
bedrooms,
or a family room, although, I do believe they can count the additional
bathroom....

In Indiana the basement must be a walk out daylight basement for the space
to count as "living space"

(my wife is a realtor) HTH
Rob