Back to Minneapolis

100 W 40th St

Duplex · 2 units: 3 bed / 1.5 bath and 2 bed / 1.5 bath unit split estimated · 3,512 sq ft

Minneapolis, MN · King Field · View the listing ↗

Far off

Photos courtesy of RE/MAX Results, via Realtor.com.

Asking price
$675,000
2 units · $338K per unit
Monthly cash flow
−$2,045
at 20% down, 7%
Estimated rent
$3,725/mo
medium confidence · 10 rentals within 1.5 mi
Break-even price
$290,845
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a nicely kept 1925 duplex in King Field, but at $675K the numbers don't work as an investment. Our underwriting shows about -$2,064 a month and a 2.7% cap rate, and break-even is near $287K. Rent estimates of roughly $1,700 to $2,000 per unit can't carry a $675K price at today's rates. The listing pitches it as live-in-one, rent-the-other, which fits an owner-occupant better than an investor. The lower-level unit is non-conforming, so don't count it as income until you confirm it can be legally rented. Check the rental license (it shows 2 units), the actual rents, and the boiler setup first. Worth a showing only if you plan to live there or the seller moves well down.

Things to consider

  1. Price is far above what rents support Underwriting shows negative cash flow of about $2,064 a month and break-even near $287K. This only works if you value living there.
  2. Non-conforming lower unit It may not be legally rentable, and the license lists only 2 units. Don't underwrite income from it.Listing says: “a non-conforming lower-level unit”
  3. Seller has big equity Bought at $290K in 2008, so the seller has room to cut price and still profit.
  4. Non-homestead tax is high Taxes of about $10.9K a year are a large expense and weigh on net income.
  5. Recent capital work reduces near-term repairs A 2021 roof and updated kitchens mean fewer big checks soon, but verify systems like electrical and plumbing.Listing says: “Roof replaced in 2021; boilers inspected September 2026.”

From the photos

Listing photo 1
1 of 7Plus

Stucco exterior with a newer-looking shingle roof on the house and garage; it appears to be in decent condition.

Listing photo 5
2 of 7Plus

Original oak hardwood floors look refinished and in good condition, with wood trim and a brick fireplace.

Listing photo 4
3 of 7Check

Cast-iron radiators show hot-water heat. Boiler count and age are not shown.

Listing photo 3
4 of 7Plus

Detached 2-car garage with a concrete driveway gives off-street parking.

Listing photo 2
5 of 7Check

Large paver patio and landscaping are nice for an owner-occupant but add maintenance and only exist as shared space.

Listing photo 10
6 of 7Check

Photos show only one main-level living area. No kitchens, baths, upper unit, lower level, boiler, or electrical panel are shown, so condition can't be judged.

Listing photo 8
7 of 7Check

A thermostat is visible on the wall, which may suggest separate heat controls, but it can't confirm separate systems.

Based on 10 of the listing photos. Photos can hide as much as they show; an inspection is the real answer.

Condition and repairs

  • doneRoof replaced in 2021Listing says: Roof replaced in 2021; boilers inspected September 2026.
  • doneUpdated kitchens in main and upper unitsListing says: The main and upper units each have an updated kitchen
  • doneBoilers inspected September 2026Listing says: Roof replaced in 2021; boilers inspected September 2026.

AI-assisted first read of the listing description and photos (Claude), checked against public records. Every rent and repair above quotes the listing; verify with the agent, leases and an inspection.

The numbers

Down payment %
Offer $
Management
Interest rate %
Edit rents, costs and assumptions

Default: 20% down (no PMI), offer at asking, self-managed, 7.00% for 30 years, buyer pays closing costs (3%).

The deal

Price
$675,000
Cash to close
$155,250
Price per unit
$337,500
GRM
15.1

Each month

Cash flow
−$2,045/mo
Cash-on-cash
−15.8%
Cap rate
2.8%
DSCR
0.43×

Break-even

Price that breaks even
$290,845
Rent that breaks even
$6,346/mo

Long run

Year 30: property vs stocks
$1.54M vs $2.97M
Cash flow turns positive
not within 30 years

Monthly

Monthly breakdown

Rent$3,725
Vacancy (6%)−$224
Collected$3,502
Property tax Public record−$904
Insurance Estimate−$223
Water, sewer, trash Estimate−$170
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (8% of rent)−$298
Capital reserve (8% of rent)−$298
Net operating income$1,548
Mortgage (principal + interest)−$3,593
Cash flow−$2,045
Principal paid down (equity, not cash)$457

Cash flow each year

Rents +3%/yr, costs +3.5%/yr. Red bars are months you'd cover out of pocket.

30 years

How those totals add up

If you buy this building$1,540,098
Your equity when you sell
$1,540,098

Sells for $1,638,402 (value up 3% a year), minus 6% selling cost ($98,304). Rent paid down $540,000 of loan.

Rental profits, invested at 7%
$0

$0 of cash flow over 30 years, plus what it earned invested.

Same money in stocks$2,971,261
Cash to close, invested at 7%
$1,181,803

$155,250 put into an index fund instead of the down payment and closing costs.

Monthly shortfalls, invested
$1,789,459

$475,518 you'd have paid in while the building lost money, invested instead.

Stocks come out $1,431,163 ahead after 30 years.

Future dollars. At 3% inflation, divide year-30 figures by about 2.4 for today's buying power. Rental profits are assumed invested, not spent.

30 years: this property vs. the same money in stocks

This propertyStocks at 7%

Year 30 (loan paid off): property $1.54M, stocks $2.97M. Stocks win.

Comparable rentals

The closest rental listings with each unit's bedroom count, as of 2026-10-06. The estimate is the median asking rent of every rental we found nearby (the count is shown for each); houses are left out. Asking rents from Realtor.com rental listings, not signed leases.

3 bed estimate $2,025/mo · range $1,825–$2,675 · 10 rentals within 1.5 mi

AddressRentBd / BaSq ftDistanceListedType
4429 Nicollet Ave, Minneapolis $1,999 3 / 1 1,050 0.6 mi 2026-01-22 Apartment
3333 Nicollet Ave Unit B, Minneapolis $2,499 3 / 2 1,400 0.8 mi — Apartment
3520 Dupont Level Ave S Unit Lower, Minneapolis $2,595 3 / 1 1,600 0.9 mi 2026-05-31 Duplex triplex
3336 4th Ave S Apt 4, Minneapolis $1,595 3 / 1 1,100 0.9 mi — Apartment
3336 4th Ave S Apt 2, Minneapolis $1,795 3 / 1 1,100 0.9 mi — Apartment
3208 Blaisdell Ave Apt 3, Minneapolis $1,750 3 / 1 1,220 0.9 mi 2024-07-22 Apartment
705 W 31st St, Minneapolis $1,775 3 / 1 725 1.2 mi 2025-03-22 Apartment
3552 Irving Ave S, Minneapolis $2,795 3 / 2 1,660 1.2 mi 2026-09-25 Apartment
3229 Hennepin Ave S, Minneapolis $2,395 3 / 1 1,970 1.3 mi 2022-08-11 Apartment
2821 1st Ave S, Minneapolis $1,600 3 / 1 1,743 1.4 mi 2026-06-17 Apartment

2 bed estimate $1,700/mo · range $1,500–$2,350 · 15 rentals within 0.75 mi

AddressRentBd / BaSq ftDistanceListedType
4201 Nicollet Ave S, Minneapolis $2,395 2 / 2 943 0.3 mi 2026-06-01 Apartment
4200 1st Ave S, Minneapolis $1,399 2 / 1 850 0.3 mi 2026-10-02 Apartment
4222 Nicollet Ave, Minneapolis $2,445 2 / 2 1,387 0.3 mi 2024-04-12 Apartment
3721 Grand Ave S Unit 2, Minneapolis $1,600 2 / 1 1,050 0.4 mi 2026-08-29 Multi family
3721 Grand Ave S Unit 1, Minneapolis $1,600 2 / 1 1,050 0.4 mi 2026-08-31 Multi family
3648 Blaisdell Ave Apt 2, Minneapolis $1,595 2 / — 1,200 0.4 mi 2026-09-16 Duplex triplex
3700 Grand Ave S, Minneapolis $1,275 2 / 1 875 0.4 mi 2026-06-19 Apartment
3536 Nicollet Ave, Minneapolis $2,595 2 / 2 1,023 0.6 mi 2024-06-11 Apartment
3535-3537 Harriet Ave, Minneapolis $2,225 2 / 1 1,300 0.6 mi 2026-09-24 Apartment
3520 Grand Ave S, Minneapolis $1,225 2 / 1 900 0.6 mi 2026-01-08 Apartment

On the maps, this property and comparable rentals. Comparable rentals and rent estimate: Realtor.com rental listings. Rents are asking rents from listings; check them against the actual leases.

Red flags and opportunities

Watch for

  • highLower-level unit is non-conforming, so it likely can't be legally rented. The license covers only 2 units. Listing says: a non-conforming lower-level unit · AI review
  • mediumAsking is $384,155 above the price where cash flow breaks even ($290,845) at the default scenario. Based on: Derived: price $675,000 vs. break-even $290,845
  • mediumProperty tax is about $10,852 on a non-homestead basis, a heavy drag on cash flow at this price. Based on: data: county.tax · AI review
  • mediumNo rents or lease details are given, so income is unverified. Based on: data: rent_estimate · AI review
  • lowInterstate 35W is about 400 meters away, which may mean noise and could affect rentability. Based on: data: highway.distance_m · AI review

Opportunities

  • The seller bought for $290,000 in Dec 2008, so they can take a lower offer and still come out well ahead. Public record: Hennepin County parcel 1002824210158: last sale 2008-12-01, $290,000
  • Owner-occupy one unit and rent the other to offset the cost of owning. Listing says: Live in one unit and rent the other, or hold the property as an investment. · AI review
  • Minneapolis has no rent cap, so rents can follow the market. Based on: data: underwriting.rent_rule · AI review
  • Updated kitchens and a 2021 roof limit near-term capital needs. Listing says: Roof replaced in 2021; boilers inspected September 2026. · AI review

Questions for the agent

  • What are the current rents and lease terms for each unit, and can I see the rent roll?
  • Is the lower-level unit permitted, and has it ever been rented? Is it on the rental license?
  • Are there separate boilers and meters for each unit? Who pays heat, water and electric?
  • How old are the boilers, electrical panels and plumbing? What did the September inspection find?
  • Why is the seller selling, and is there any room on price given the 2008 purchase at $290K?

Bottom line

A well-kept King Field duplex that only works as an owner-occupant purchase; as a pure rental, $675K is far above what the rents support. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Public recordHennepin County record, current payable year (non-homestead)$10,852
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$2,678
Water, sewer, trash / mo Estimateestimate. $85/unit/mo, owner-paid$170
Heat / mo Assumptionassumption. tenants pay heat; confirm with the agent$0
Lawn care / mo Assumptionassumption. $120/mo for 6 months, spread over 12; no snow removal$60
Repairs / capital reserve Rulerule. base rate8% / 8%

Price history Realtor.com

On the market since 2026-06-29 (98 days, relisted 1×); last sold for $421,000 on 2007-01-31.

DateEventPrice
Removed$675,000
Listed$675,000
Removed$675,000
Listed$675,000
Removed$650,000
Removed$650,000
Sold public record$421,000
Sold public record$330,000
Sold public record$140,000
Sold public record$115,000

County record Public record

Recorded asduplex
Living units2
Year built1925
Market value (2026)$571,400
Property tax$10,852
Special assessmentsnone
Homesteadno
Last sale2008-12-01 · $290,000

Source: Hennepin County parcel records.

City rental license

CHOWNEXMPT: 2 unit(s), Tier 1, status active, renews 2027-03-01.

Nearest highway

I 35W, about 411 m away.

Crime in King Field

286 incidents in the last 12 months (37 per 1,000 residents), −9% vs. the year before. Minneapolis police incidents, all reported offenses (definitions differ from St. Paul's, so don't compare across cities).