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671 Spring St NE

Duplex · 2 units: 1 bed / 1 bath ×2 unit split estimated · 1,531 sq ft

Minneapolis, MN · St. Anthony East · View the listing ↗

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Photos, via Realtor.com.

Asking price
$350,000
2 units · $175K per unit
Monthly cash flow
−$307
at 20% down, 7%
Estimated rent
$2,700/mo
medium confidence
Break-even price
$292,403
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a Northeast Minneapolis duplex priced at $350K, and at 20% down our model shows about -$307/month and a 5.3% cap rate. Break-even price is about $292K, so the ask looks roughly $58K too high on these numbers. The $1,111.50 tax is a 4D program rate that steps up as restrictions expire, so don't underwrite it long term. The description never gives current rents or lease terms, so get the rent roll first. The 2026 electrical panels and water line are a good sign, but the kitchens and baths look dated, and 109 days on market gives you room to negotiate. Worth a showing only if the price comes down toward break-even.

Things to consider

  1. Price is above break-even Our model shows about -$307/month at ask. Break-even is near $292K, so it needs a meaningful cut to work.
  2. Tax bill will rise The low tax is temporary under 4D. Higher taxes in two years will hit cash flow, so underwrite a higher number.Listing says: “the City of Minneapolis 4D program delivers meaningful tax savings for the next two years”
  3. Rents are unknown Without the rent roll you can't verify the cash-flow claim. Our estimate is about $1,350 per 1-bed, so compare actual rents to that.
  4. Recent systems work reduces near-term risk New panels and a new water line remove two common big-ticket worries for a 1900 building. Ask for permits and invoices.Listing says: “Two new electrical panels in the basement, new water service line, freshly painted exterior (all updates in 2026)”
  5. Interiors look dated Kitchens and baths appear original or cosmetic, so budget for updates at turnover.From photo 5
  6. Long time on market 109 days and a seller who bought in 2001 for $143K give you room to negotiate.

From the photos

Listing photo 1
1 of 7Plus

Exterior looks neat with a stucco finish and a detached 1-car garage. The roof appears in decent shape from the street.

Listing photo 5
2 of 7Concern

Kitchen has painted cabinets, a laminate counter, and older tile backsplash. It looks dated and cosmetic-only, not a full update.

Listing photo 2
3 of 7Plus

Hardwood floors throughout the unit appear in good shape.

Listing photo 8
4 of 7Concern

One bath has a clawfoot tub, a wall-mounted sink, and old fixtures. The other has a fiberglass tub surround. Both appear dated.

Listing photo 10
5 of 7Check

Basement has a newer-looking forced-air furnace, a laundry setup, and rough stone foundation walls. Have the foundation inspected for moisture and cracking.

Listing photo 9
6 of 7Check

The garage is packed with storage and the ceiling joists are exposed. Check the structure and who has garage rights.

Listing photo 4
7 of 7Check

The photos show only one unit's interior. The second unit and the attic bedroom are not shown, and neither is the new electrical panel.

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

Condition and repairs

  • doneTwo new electrical panels in the basementListing says: Two new electrical panels in the basement, new water service line, freshly painted exterior (all updates in 2026)
  • doneNew water service lineListing says: new water service line, freshly painted exterior (all updates in 2026)
  • doneFreshly painted exteriorListing says: freshly painted exterior (all updates in 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
$350,000
Cash to close
$80,500
Price per unit
$175,000
GRM
10.8

Each month

Cash flow
−$307/mo
Cash-on-cash
−4.6%
Cap rate
5.3%
DSCR
0.84×

Break-even

Price that breaks even
$292,403
Rent that breaks even
$3,098/mo

Long run

Year 30: property vs stocks
$1.15M vs $702K
Cash flow turns positive
year 8

Monthly

Monthly breakdown

Rent$2,700
Vacancy (6%)−$162
Collected$2,538
Property tax Public record−$93
Insurance Estimate−$200
Water, sewer, trash Estimate−$170
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (8% of rent)−$216
Capital reserve (9% of rent)−$243
Net operating income$1,556
Mortgage (principal + interest)−$1,863
Cash flow−$307
Principal paid down (equity, not cash)$237

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$1,148,619
Your equity when you sell
$798,569

Sells for $849,542 (value up 3% a year), minus 6% selling cost ($50,973). Rent paid down $280,000 of loan.

Rental profits, invested at 7%
$350,050

$206,595 of cash flow over 30 years, plus what it earned invested.

Same money in stocks$701,759
Cash to close, invested at 7%
$612,787

$80,500 put into an index fund instead of the down payment and closing costs.

Monthly shortfalls, invested
$88,972

$14,113 you'd have paid in while the building lost money, invested instead.

The building comes out $446,860 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 $1.15M, stocks $702K. The property wins.

Comparable rentals

Nearby rentals RentCast matched to each unit type, as of 2026-10-05. The estimate above is RentCast's, weighted toward the closest matches.

1 bed / 1 bath estimate $1,350/mo · range $1,175–$1,525

AddressRentBd / BaSq ftDistanceListedMatch
847 Summer St NE, Minneapolis 55413 off market $1,150 1 / 1 — 0.3 mi 2026-03-23 94%
843 Summer St NE, Minneapolis 55413 off market $1,150 1 / 1 — 0.3 mi 2026-04-14 94%
45 University Ave SE, Unit 402, Minneapolis 55414 off market $1,300 1 / 1 — 0.5 mi 2026-09-21 93%
314 13th Ave NE, Minneapolis 55413 off market $1,360 1 / 1 — 0.6 mi 2026-05-09 93%
621 5th Ave SE, Minneapolis 55414 $975 1 / 1 — 0.6 mi 2024-04-15 93%
327 University Ave SE, Minneapolis 55414 off market $990 1 / 1 — 0.7 mi 2024-04-15 93%
515 5th St SE, Apt 4, Minneapolis 55414 off market $1,395 1 / 1 — 0.7 mi 2026-05-19 93%
520 Se 5th St, Minneapolis 55414 off market $1,295 1 / 1 — 0.7 mi 2026-08-05 93%
438 University Ave NE, Apt 2, Minneapolis 55413 off market $1,450 1 / 1 1,000 0.3 mi 2026-03-27 91%
136 14th Ave NE, Minneapolis 55413 off market $1,599 1 / 1 1,000 0.8 mi 2026-07-16 90%

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

Red flags and opportunities

Watch for

  • highTaxes are temporarily low under the 4D program and will rise when it expires. Underwriting on today's bill overstates cash flow. Listing says: the City of Minneapolis 4D program delivers meaningful tax savings for the next two years · AI review
  • highThe description claims cash flow but gives no rents or lease terms. Our model shows negative cash flow at ask. Based on: data: underwriting.cash_flow_monthly · AI review
  • mediumThe attic bedroom is non-conforming, so it should not count as a legal bedroom or support higher rent. Listing says: non-conforming 2nd bedroom in the attic · AI review
  • mediumThe price is well above break-even, so the deal doesn't work at today's rates without a cut. Based on: data: underwriting.break_even_price · AI review

Opportunities

  • The seller bought for $143,275 in Apr 2001, so they can take a lower offer and still come out well ahead. Public record: Hennepin County parcel 1402924420072: last sale 2001-04-01, $143,275
  • Long time on market: room to negotiate. Based on: Listing data: 109 days on market
  • Owner-occupant could live in one unit and rent the other, which cuts the cost of ownership. Listing says: Owner-occupants can offset their mortgage by renting one unit · AI review
  • Minneapolis has no rent cap, so rents can move toward market after any turnover or refresh. Based on: data: underwriting.rent_rule · AI review
  • The seller has held the property since 2001 at a much lower price and it has sat for 109 days, which supports a lower offer. Based on: data: listing.days_on_market · AI review

Questions for the agent

  • What are the current rents, lease end dates, and are the leases written or month-to-month?
  • What will taxes be after the 4D program ends, and what are the program's restrictions and rent limits?
  • Who pays heat and water, and are there separate meters for gas and electric?
  • Is the attic bedroom finished, permitted, and is it part of the upper unit?
  • How old are the furnace and water heater, and what is the roof's age?
  • Why has it sat 109 days, and has there been a price cut or any offers?

Bottom line

Fresh electrical and water work is a plus, but at $350K with temporary tax savings and no stated rents, it needs a lower price to make sense. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Public recordHennepin County record, current payable year (non-homestead)$1,112
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$2,401
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. built 1900: +1 pt capital reserve8% / 9%

Price history Realtor.com

On the market since 2026-06-18 (109 days); down $10,000 (2.8%) from the first ask of $360,000; last sold for $143,500 on 2001-05-09.

DateEventPrice
Price changed$350,000
Relisted$360,000
Removed—
Listed$360,000
Sold public record$143,500
Sold public record$65,000
Sold public record$45,000

County record Public record

Recorded asduplex
Living units2
Year built1900
Market value (2026)$287,200
Property tax$1,112
Special assessmentsnone
Homesteadno
Last sale2001-04-01 · $143,275

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 1220 m away.

Crime in St. Anthony East

98 incidents in the last 12 months (45 per 1,000 residents), +18% vs. the year before. Minneapolis police incidents, all reported offenses (definitions differ from St. Paul's, so don't compare across cities).