If you are talking about a shell that requires new plumbing, electrial and HVAC and you are using a contractor, those 3 items alone can cost $50K to $60K. That's for moderate to high efficiency/dual zoned HVAC, 220 electrical service with a minimum of high hats installed. Add new kitchen (mid-level cabinets with granite countertops & mid-grade stainless steel pkg), windows, interior work (dry wall, carpentry, flooring), finishes, contractor overhead, architect, permits and trash management plus a 10% cushion for overruns and you can easily add another $70K-$80K. That's $120K- $160K total for a project in Grad Hosp, assuming you do the demo work and extras like decks aren't included. Hope this is helpful!