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Estimate the total cost to convert an unfinished basement into livable space. This calculator models framing, drywall, flooring, electrical/HVAC, bathroom scope, moisture prep, and permit requirements.
Last updated: April 13, 2026
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Estimated total finishing cost
$65,328
$73 per sq ft
Good baseline for open basement rec rooms with finished walls, ceiling, flooring, and lighting.
Includes use-case multiplier for more complete living spaces with upgraded comfort and utility demands.
Helps quantify common high-impact adders including bathroom plumbing and egress window requirements.
For a 900 sq ft mid-range basement with half-bath and egress upgrades:
Total Cost: $65328 ($72.59/sq ft)
This estimator combines area-based scope costs with major project modifiers like finish level, intended use, existing condition, and code/permit requirements to create practical planning estimates.
Share it with others planning basement renovation projects
Suggested hashtags: #BasementFinishing #Renovation #HomeImprovement #CostCalculator