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611 E 6th St

Duplex · 2 units: 2 bed / 1 bath ×2 · 2,192 sq ft

Duluth, MN · View the listing ↗

Overpriced

Photos, via Realtor.com.

Asking price
$289,000
2 units · $144K per unit
Monthly cash flow
−$337
at 20% down, 7%
Estimated rent
$2,500/mo
high confidence
Break-even price
$225,731
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a 1913 up/down in Duluth asking $289K, and the numbers don't work as an investment. Our underwriting shows about -$337/month at 20% down and a 5.0% cap rate, and break-even is near $225.7K, roughly $63K below ask. The listing pitches it for an owner-occupant, with no rents, no heat type and no tax figures. Rents are also unknown. Our estimate is only about $1,250 per unit. The photos show a cosmetic refresh (new vinyl plank, white cabinets, paint) over an older basement with stained walls. At 160 days on market with motivated-seller language, there is room to negotiate. Get the actual tax bill, heat costs and the rental license status before a showing.

Things to consider

  1. Price versus income Break-even is about $63K below ask and cash flow is negative. Without rents in hand, nothing here supports $289K.
  2. Rents are unknown and our estimates are modest At roughly $1,250 per unit, income is capped unless the third bedrooms are legal. Confirm actual rents before relying on any number.
  3. Unverified county record Taxes and unit count could not be matched to a parcel. Taxes could be higher for a non-owner-occupant.
  4. Bedroom upside depends on parking rules A third bedroom could raise rents, but only if the city allows it with available parking. Check before paying for it.Listing says: “depending on parking requirements (see City of Duluth website for City Rental”
  5. Basement condition Stained walls and old plumbing could hide moisture or foundation issues. A 1913 building warrants a thorough inspection.From photo 9
  6. Negotiating leverage 160 days on market and motivated-seller wording support a substantially lower offer.

From the photos

Listing photo 1
1 of 7Plus

Front exterior shows siding and a painted porch that appear in decent shape. Two entrances and two mailboxes suggest an up/down layout.

Listing photo 2
2 of 7Check

Interiors show new vinyl plank flooring, fresh paint and baseboard hot-water radiators. The refresh appears cosmetic.

Listing photo 6
3 of 7Plus

Kitchen has white shaker cabinets, dark laminate counters and basic appliances. It appears recently updated, but at a budget grade.

Listing photo 9
4 of 7Concern

Basement has stained, flaking masonry walls, dark marks near the floor, and old and new piping. Possible moisture history; have it inspected.

Listing photo 9
5 of 7Check

Basement has newer copper piping with zone valves. Suggests some heating work was done, but no boiler is shown.

Listing photo 4
6 of 7Check

Bathroom has a basic new vanity and toilet. It appears to be a light update only.

Listing photo 10
7 of 7Check

No photos of the boiler, electrical panel, roof, or the second unit's kitchen and baths.

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

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
$289,000
Cash to close
$66,470
Price per unit
$144,500
GRM
9.6

Each month

Cash flow
−$337/mo
Cash-on-cash
−6.1%
Cap rate
5.0%
DSCR
0.78×

Break-even

Price that breaks even
$225,731
Rent that breaks even
$2,937/mo

Long run

Year 30: property vs stocks
$846K vs $615K
Cash flow turns positive
year 11

Monthly

Monthly breakdown

Rent$2,500
Vacancy (6%)−$150
Collected$2,350
Property tax Listing−$278
Insurance Estimate−$215
Water, sewer, trash Estimate−$170
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (8% of rent)−$200
Capital reserve (9% of rent)−$225
Net operating income$1,201
Mortgage (principal + interest)−$1,538
Cash flow−$337
Principal paid down (equity, not cash)$196

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$846,399
Your equity when you sell
$659,390

Sells for $701,479 (value up 3% a year), minus 6% selling cost ($42,089). Rent paid down $231,200 of loan.

Rental profits, invested at 7%
$187,009

$118,645 of cash flow over 30 years, plus what it earned invested.

Same money in stocks$614,652
Cash to close, invested at 7%
$505,987

$66,470 put into an index fund instead of the down payment and closing costs.

Monthly shortfalls, invested
$108,666

$18,855 you'd have paid in while the building lost money, invested instead.

The building comes out $231,747 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 $846K, stocks $615K. 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.

2 bed / 1 bath estimate $1,250/mo · range $1,125–$1,400

AddressRentBd / BaSq ftDistanceListedMatch
618 N 7th Ave E, Unit Upper, Duluth 55805 off market $1,350 2 / 1 — 0.1 mi 2026-08-26 94%
728 N 5th Ave E, Unit 1, Duluth 55805 off market $1,325 2 / 1 — 0.2 mi 2026-06-17 94%
803.5 N 8th Ave E, Duluth 55805 off market $1,125 2 / 1 — 0.2 mi 2026-09-08 94%
814 E 5th St, Unit 2, Duluth 55805 off market $1,075 2 / 1 — 0.2 mi 2026-06-12 94%
920 1/2 E 5th St, Duluth 55805 off market $1,550 2 / 1 — 0.3 mi 2026-04-02 94%
925 1/2 E 7th St, Duluth 55805 off market $1,125 2 / 1 — 0.3 mi 2026-06-11 94%
927 E 7th St, Unit Lower, Duluth 55805 off market $1,225 2 / 1 — 0.3 mi 2026-04-30 94%
120 N 8th Ave E, Unit Upper, Duluth 55805 off market $1,395 2 / 1 — 0.4 mi 2026-07-31 93%
109 N 9th Ave E, Apt 2, Duluth 55805 off market $1,195 2 / 1 — 0.4 mi 2026-07-22 93%
825 E 1st St, Apt B, Duluth 55805 off market $1,200 2 / 1 — 0.4 mi 2026-08-26 93%

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

  • highPriced well above what our rent estimates support. Ask is about $63K over break-even. Based on: data: underwriting.break_even_price · AI review
  • highNegative cash flow at ask even with 20% down. Based on: data: underwriting.cash_flow_monthly · AI review
  • mediumCouldn't match this address to a county parcel record, so taxes and unit count are unverified. Public record: County parcels: no match for 611 6TH ST E
  • mediumThird-bedroom potential depends on parking rules, so legal bedroom count is uncertain. Rent upside may not be allowed. Listing says: potential for 3rd bedrooms in both units depending on parking requirements · AI review

Opportunities

  • Long time on market: room to negotiate. Based on: Listing data: 160 days on market
  • Motivated-seller language: room to negotiate. Listing says: "MOTIVATED SELLER & Great 4 bedroom, 2 bath, up and"
  • Owner-occupy one unit and rent the other to reduce housing cost, though the investment math is weak. Listing says: What a great opportunity to owner occupy and have the other unit to cash flow! · AI review
  • Off-street parking in back could help with rental licensing and a third-bedroom conversion. Listing says: Back yard has off street parking and some landscaping · AI review

Questions for the agent

  • What are the current rents, lease terms and are the units occupied or vacant?
  • Which utilities does the owner pay, and what is the heat type and monthly cost? Are there separate meters?
  • What are the actual property taxes, and is any special assessment pending?
  • Does the city rental license cover two units, and how many parking spaces would a third bedroom need?
  • What was updated in the renovation, who did the work, and were permits pulled?
  • Why has it sat 160 days, and has the price been cut?

Bottom line

A refreshed 1913 Duluth duplex that loses money at $289K, so it only makes sense as an owner-occupant purchase at a much lower price. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Listinglisting, tax year 2026. The tax the listing states. If the seller lives there it may be at the lower homestead rate; an investor owner pays the non-homestead rate, often 20–40% more on the owner's unit.$3,340
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$2,583
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 1913: +1 pt capital reserve8% / 9%

Price history Realtor.com

On the market since 2026-04-28 (160 days); down $41,000 (12.4%) from the first ask of $330,000.

DateEventPrice
Price changed$289,000
Price changed$294,900
Price changed$309,900
Price changed$315,000
Price changed$325,000
Listed$330,000
Removed—
Price changed$79,000
Price changed$89,990
Price changed$99,900
Price changed$104,900
Price changed$109,900
Price changed$114,900
Price changed$117,500
Listed$120,000
Removed$127,500
Listed$127,500
Removed$100,000
Listed$100,000
Removed$110,000
Removed$110,000
Listed$110,000
Removed$79,900
Listed$79,900
Removed$79,900

From the listing Listing

Listed asduplex
Property tax, 2026$3,340
CountySt. Louis County
Parcel number010-3490-00280

As the listing states it (NorthstarMLS, via Realtor.com). We don't have county records here yet; check the tax, homestead status and special assessments with the county.

Crime, rental-license and vacant-building records are only available for St. Paul and Minneapolis so far. Check with Duluth on rental licensing before you buy.