Here are some sample floor plans to give you an idea. The AVERAGE cost is $95.00 a sq ft Just a shell could cost around $75.00 a sq ft or lessThe cost of a traditional house is between $95.00 to $155.00 a sq ft
This dome below is a 32 ft dome that has 804 sq ft living area.
This is a 25 ft dome that has 491 sq ft of living area.
The Dome below is a 36ft dome that has 1,018 sq ft of living area and could have a small upstairs which would have around 300 sq ft area.
This Dome below is a 50ft dome that has 1,963 sq ft living area and a second floor that has 893 sq feet of living area or a large loft.
Thanks to Monolithic Dome Institute