Home Addition Cost Calculator
Square Footage (sq ft)
Please enter a valid area.
Quality Level
Basic ($150/sqft)
Standard ($200/sqft)
Premium ($300/sqft)
Number of Stories
Must be at least 1.
Complexity
Simple (+0%)
Moderate (+10%)
Complex (+25%)
Permits & Fees
Must be non-negative.
Design/Architect Fees
Must be non-negative.
Contingency (%)
Enter 0-50.
Calculate Cost
Estimated Total Cost
$0
Breakdown:
Base Construction:
$0
Complexity Adjustment:
$0
Permits & Fees:
$0
Design Fees:
$0
Contingency:
$0
Formula: Total = (Base + Complexity Adj + Permits + Design) * (1 + Contingency%)