Back to Greater Minnesota

509 E 4th St

Duplex · 2 units: 4 bed / 1.5 bath and 3 bed / 1.5 bath unit split estimated · 1,890 sq ft

Albert Lea, MN · View the listing ↗

Cash flows

Photos courtesy of NRT-Minnesota (CB Burnet), via Realtor.com.

Asking price
$189,000
2 units · $94K per unit
Monthly cash flow
$253
at 20% down, 7%
Estimated rent
$2,400/mo
medium confidence
Break-even price
$236,550
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a 1888 up/down in Albert Lea with 7 beds and 3 baths on 1,890 sq ft, listed 276 days at $189K. Our model shows about $253/mo cash flow and an 8% cap at ask, using estimated rents of roughly $1,200 per unit, because the listing gives no rents, taxes or utility details. That is thin and rests on guesses, so get the rent roll, leases, tax bill and heat setup first. The tax and unit count could not be matched to a county parcel, so confirm those before anything else. Photos show window A/C units and older siding, so the condition looks dated; worth a showing only if the seller will share real numbers and you can negotiate after 9 months on market.

Things to consider

  1. Income is unverified The numbers rest on our rent estimates of about $1,200 per unit. Real rents could be higher or lower and change the cash flow a lot.
  2. Taxes and unit count not confirmed We couldn't match a county parcel, so the tax figure used is an estimate. A different tax bill or unit count would change the deal.
  3. Old building, no system details An 1888 house likely needs capital work, and the listing says nothing about updates. Budget for inspections of roof, wiring, plumbing and foundation.
  4. Leverage from long time on market After 276 days, the seller may accept a lower price. Our break-even price is above ask, but it relies on estimated rents.
  5. Heat and utilities unknown If the owner pays heat or water, cash flow drops. If tenants pay, it improves.

From the photos

Listing photo 3
1 of 7Plus

Two entry doors on the front porch side appear to serve separate units, consistent with an up/down layout.

Listing photo 2
2 of 7Concern

Window A/C units appear in several windows, suggesting no central air.

Listing photo 1
3 of 7Check

Lap siding looks painted and aged, with a few areas that appear worn. Check for rot, lead paint and paint condition.

Listing photo 3
4 of 7Check

Asphalt shingle roof appears to be in fair condition from a distance, but its age can't be judged.

Listing photo 2
5 of 7Plus

Detached garage and gravel driveway/alley access appear on the side, giving off-street parking.

Listing photo 1
6 of 7Check

Overhead service lines run to the side of the house. The panel and meters aren't shown. Ask about the electrical service and whether each unit has its own meter.

Listing photo 1
7 of 7Check

No interior photos of kitchens, baths, basement or mechanicals are shown, so unit condition is unknown.

Based on 3 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
$189,000
Cash to close
$43,470
Price per unit
$94,500
GRM
6.6

Each month

Cash flow
$253/mo
Cash-on-cash
7.0%
Cap rate
8.0%
DSCR
1.25×

Break-even

Price that breaks even
$236,550
Rent that breaks even
$2,071/mo

Long run

Year 30: property vs stocks
$1.20M vs $331K
Cash flow turns positive
year 1

Monthly

Monthly breakdown

Rent$2,400
Vacancy (6%)−$144
Collected$2,256
Property tax Listing−$151
Insurance Estimate−$208
Water, sewer, trash Estimate−$170
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (8% of rent)−$192
Capital reserve (9% of rent)−$216
Net operating income$1,259
Mortgage (principal + interest)−$1,006
Cash flow$253
Principal paid down (equity, not cash)$128

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$1,195,133
Your equity when you sell
$431,228

Sells for $458,753 (value up 3% a year), minus 6% selling cost ($27,525). Rent paid down $151,200 of loan.

Rental profits, invested at 7%
$763,906

$328,039 of cash flow over 30 years, plus what it earned invested.

Same money in stocks$330,905
Cash to close, invested at 7%
$330,905

$43,470 put into an index fund instead of the down payment and closing costs.

The building comes out $864,228 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 $1.20M, stocks $331K. 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.

4 bed / 1.5 bath estimate $1,200/mo · range $900–$1,525

AddressRentBd / BaSq ftDistanceListedMatch
1609 Gateway Dr, Albert Lea 56007 $1,850 4 / 2 2,084 1.5 mi 2026-10-05 79%
1913 Grand Ave, Albert Lea 56007 $1,500 4 / 2 2,350 2.1 mi 2026-09-10 76%
318 E 5th St, Albert Lea 56007 off market $1,300 3 / 1 1,742 0.2 mi 2026-09-03 72%
902 S 4th Ave, Apt 203, Albert Lea 56007 off market $900 2 / 1 — 1.1 mi 2026-07-31 71%
820 S 4th Ave, Apt 302, Albert Lea 56007 off market $850 2 / 1 — 1.1 mi 2026-07-14 71%
826 S 4th Ave, Apt 306, Albert Lea 56007 off market $800 1 / 1 — 1.1 mi 2025-12-03 71%
1516/1520 E Hawthorne St, Albert Lea 56007 $895 2 / 1 — 1.3 mi 2025-09-06 71%
1516/1520 E Hawthorne Ave, Albert Lea 56007 off market $950 2 / 1 — 1.3 mi 2025-09-06 71%
1403 Dunham St, Albert Lea 56007 off market $1,300 3 / 1 1,809 1.5 mi 2026-06-23 71%
308 Vine Ave, Albert Lea 56007 off market $1,400 3 / 2 1,758 1.1 mi 2026-05-14 70%

3 bed / 1.5 bath estimate $1,200/mo · range $1,000–$1,400

AddressRentBd / BaSq ftDistanceListedMatch
318 E 5th St, Albert Lea 56007 off market $1,300 3 / 1 1,742 0.2 mi 2026-09-03 81%
902 S 4th Ave, Apt 203, Albert Lea 56007 off market $900 2 / 1 — 1.1 mi 2026-07-31 80%
820 S 4th Ave, Apt 302, Albert Lea 56007 off market $850 2 / 1 — 1.1 mi 2026-07-14 80%
1516/1520 E Hawthorne St, Albert Lea 56007 $895 2 / 1 — 1.3 mi 2025-09-06 80%
1516/1520 E Hawthorne Ave, Albert Lea 56007 off market $950 2 / 1 — 1.3 mi 2025-09-06 80%
1403 Dunham St, Albert Lea 56007 off market $1,300 3 / 1 1,809 1.5 mi 2026-06-23 80%
308 Vine Ave, Albert Lea 56007 off market $1,400 3 / 2 1,758 1.1 mi 2026-05-14 80%
430 Ulstad Ave, Albert Lea 56007 off market $1,300 3 / 1.5 1,458 1.1 mi 2026-03-16 79%
604 Ulstad Ave, Albert Lea 56007 off market $1,300 3 / 1.5 — 1.1 mi 2026-08-12 78%
301 Giles Pl, Albert Lea 56007 off market $1,350 3 / 1 1,589 1.2 mi 2025-11-03 78%

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

  • highNo rents, lease terms or occupancy given. Income can't be checked. Based on: data: rent_estimate · 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 509 4TH ST E
  • medium1888 building with unknown wiring, plumbing, foundation and roof age. Nothing is disclosed on any of them. Based on: data: listing.year_built · AI review
  • mediumDescription is all marketing language and offers no operating facts, such as utilities, heat type or updates. Listing says: This charming up-down duplex in Albert Lea offers timeless curb appeal and a versatile opportunity · AI review

Opportunities

  • Long time on market: room to negotiate. Based on: Listing data: 276 days on market
  • 276 days on market suggests room to negotiate below the $189K ask. Based on: data: listing.days_on_market · AI review
  • Detached 2-car garage gives off-street parking and could be rented or used as a selling point. Listing says: a detached 2-car garage providing valuable storage and off-street parking · AI review
  • Owner-occupant option: live in one unit and rent the other, which may help financing. Listing says: live in one unit while offsetting expenses with the other · AI review

Questions for the agent

  • What are the current rents, lease end dates and are tenants month-to-month?
  • What are the actual annual property taxes and any special assessments?
  • How is each unit heated and metered, and who pays gas, electric, water and trash?
  • Why has it sat 276 days, and have there been price cuts or offers?
  • How old are the roof, furnace(s), water heaters and electrical panels, and is the wiring updated?
  • Is the unit count licensed as a duplex with the city, and are the 7 beds legal bedrooms?

Bottom line

Plausible small-town duplex at about 8% cap on estimated rents, but with no rents, taxes or systems info, you'd be buying on guesses until the seller shows numbers. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Listinglisting, tax year 2025. 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.$1,808
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$2,500
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 1888: +1 pt capital reserve8% / 9%

Price history Realtor.com

On the market since 2026-01-02 (276 days); last sold for $78,100 on 2015-01-01.

DateEventPrice
Removed$189,000
Removed$189,000
Removed$189,000
Listed$189,000
Removed—
Listed$189,000
Removed$79,000
Removed$79,000
Removed$79,000
Sold public record$78,100
Removed$79,000
Removed$79,000
Removed$79,000
Listed$79,000
Listed$79,000
Sold public record$78,000

From the listing Listing

Listed asduplex up and down
Property tax, 2025$1,808
CountyFreeborn
Parcel number1

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 Albert Lea on rental licensing before you buy.