Hi,
I am an architect and I completed a basement like the one you described.
Design, materials and workmanship was about $35,000
Every basement is different and you would need either an architect, engineer or contractor to assess the existing conditions. Do you have moisture issues? Slab issues?
Give me a call if you have questions and I would love to help out.
Thanks,
ileana schinder
ile@ileanaschinder.com
www.ileanaschinder.com