What does basement finishing cost in Minneapolis–St. Paul?
There's no published Twin Cities price survey for basement finishes, but national ranges and Minneapolis's own permit fee worksheet give you a solid starting budget.12
National range
$30–$50 per sq ft
HomeGuide's national range, or $15,000 to $75,000 total depending on size and rooms. A DIY finish runs $10,000 to $30,000.1
A worked example
An 800-square-foot basement at $30 to $50 per square foot is $24,000 to $40,000 (our arithmetic on national figures).1 Against median home values, that's about 6.6% to 11.0% in Minneapolis ($362,200) and 8.1% to 13.6% in St. Paul ($294,500).3
How Minneapolis figures the permit fee
The city's worksheet adds three parts: a building permit fee from a valuation table, a plan review fee of 65% of that building fee, and a Minnesota state surcharge of 0.05% of the value of work.2
Example: using the table on the version of the worksheet the city hosts (dated 2019), a $40,000 project would be $801.50 + $520.98 plan review + $20.00 surcharge = $1,342.48 (our calculation).2 Confirm current fees with the city before budgeting, and remember electrical, plumbing and mechanical permits are separate.
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- Low ceilings. If ducts or beams sit below 6'4", rerouting ductwork may be what makes a room habitable. Basement ductwork runs $1,800 to $3,100 nationally.41
- Stairs. Rebuilding a steep stair to meet rise, run and headroom minimums is its own line item.4
- Hardwired, interconnected smoke alarms when finishes are opened up.4
- Egress. HomeGuide's national average is $6,000 to $8,000 per installed egress window. See egress windows.5
- Heat. Habitable rooms must hold 68°F, which may mean extending heat into the basement.4
Other national line items
| Item | National range |
|---|---|
| Basement insulation | $1–$3 per sq ft of surface |
| Drywall ceiling | $2–$4 per sq ft |
| Drop ceiling | $4–$20 per sq ft |
| Waterproofing | $6,000–$18,000 |
| Sump pump | $600–$2,500 |
Source: HomeGuide (national).1
Common questions
How much does it cost to finish a basement in Minneapolis?
No local survey exists. HomeGuide's national range is $30 to $50 per square foot, or about $24,000 to $40,000 for 800 square feet.
How are Minneapolis building permit fees calculated?
A fee from the city's valuation table, plus 65% of that for plan review, plus a state surcharge of 0.05% of the value of the work.
Why are Twin Cities basements more expensive to finish?
Older homes often need work to meet the 6'4" habitable ceiling, stair and alarm rules, which adds ductwork, carpentry or electrical work.
Is a drop ceiling allowed?
Yes. A drop ceiling is common in basements because it allows access to utilities, but it still has to meet the minimum ceiling height for habitable space.
General information summarized from the public sources listed below. It isn't professional, engineering or legal advice. Codes and programs change; confirm current requirements with your local building department or utility before you start.
Sources
- HomeGuide, "Cost to Finish a Basement" (national figures, Feb. 6, 2026)
- City of Minneapolis, Building Permit Fee Schedule and Worksheet (PDF)
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25035 (median year built), B25034 (year built), B25003 (tenure), B25077 (median value)
- City of Minneapolis, "Basement finish or remodel in one and two-family dwellings" (PDF)
- HomeGuide, "Egress Window Installation Cost" (national figures, Oct. 22, 2025)