How Much Does It Cost To Finish A 1000 Sq Ft Basement?

How Much Does It Cost To Finish A 1000 Sq Ft Basement? Expect to pay $7,000 to $23,000, or $15,000 on average, to finish a 1,000 square foot basement. How much does it cost to finish a basement in Ontario? Basement Renovation Cost Factors The average basement renovation cost ranges between $35-$55 per square foot.