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3121 Scotch Ln

Triplex · 3 units: 2 bed / 1.5 bath ×3 unit split estimated · 3,600 sq ft

Mankato, MN · View the listing ↗

Far off

Photos courtesy of RE/MAX Advantage Plus, via Realtor.com.

Asking price
$599,900
3 units · $200K per unit
Monthly cash flow
−$1,991
at 20% down, 7%
Estimated rent
$3,675/mo
low confidence · 7 rentals within 2.5 mi
Break-even price
$225,776
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a pre-completion new-build duplex, but the facts carry a unit_count of 3 and rent estimates for three units. The description and photos only support two. Each side is described as 3 bed / 2.5 bath with main-floor laundry, and 3 beds x 2 units matches the 6 beds listed. Our model rents the units as 2-beds at about $1,225 each, and that undershoots 3-beds, so check real comps for 3-bed new construction. Even so, the underwriting shows about -$1,991 a month and a 2.4% cap rate at ask, and break-even is near $226K against a $599,900 ask. At today's rates it doesn't work without much higher rents or a big price cut. Nothing is built yet (completion 10/31/2026), so the photos may be of a model or similar unit. Get the builder's contract terms, the tax estimate on the finished building, and the rental license rules before a showing.

Things to consider

  1. Price vs. rents Our underwriting shows negative cash flow of about $1,991 a month at ask, with a break-even price near $226K. Rents would need to be far higher to close the gap.
  2. Rents may be understated for 3-beds Our estimate treats each unit as a 2-bed at $1,225. Actual 3-bed new-build rents could be higher, so check local comps before dismissing the deal.Listing says: “Each unit has three bedrooms, 2.5 bathrooms, main floor laundry.”
  3. Completion risk The building isn't finished. Delays or changes could affect financing, closing and when rent starts.Listing says: “Estimated Completion: 10/31/2026.”
  4. Taxes unverified There is no county parcel match. New construction is usually assessed higher than land-only records, which would cut cash flow further.
  5. Low maintenance, but new builds still need reserves New systems and finishes lower early repair costs, which helps hold-period returns. It doesn't fix the price problem.Listing says: “Minimal maintenance for years to come, fresh and appealing amenities for home owners and tenants.”

From the photos

Listing photo 1
1 of 7Plus

Kitchen appears new with quartz counters, stainless appliances, soft-close shaker cabinets and an island. Low near-term repair risk.

Listing photo 4
2 of 7Plus

Main floor has LVP flooring, recessed lighting and a sliding patio door. Durable for rentals.

Listing photo 5
3 of 7Plus

Laundry washer and dryer are visible on the main floor next to a half bath.

Listing photo 8
4 of 7Check

Shower is a basic one-piece fiberglass unit. Fine for rentals, but not high-end.

Listing photo 9
5 of 7Check

Bedroom has carpet and a ceiling fan. Carpet will need replacement between some tenants.

Listing photo 10
6 of 7Check

Rear of the building appears to be a vinyl-sided side-by-side with a shared roofline and one A/C condenser visible. Yard is bare, unfinished grass.

Listing photo 1
7 of 7Check

Interior photos look staged and may show a model or similar unit, since the building isn't complete. Confirm finishes match the contract.

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

Condition and repairs

  • doneNew construction, minimal maintenance expectedListing says: Minimal maintenance for years to come, fresh and appealing amenities for home owners and tenants.

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
$599,900
Cash to close
$137,977
Price per unit
$199,967
GRM
13.6

Each month

Cash flow
−$1,991/mo
Cash-on-cash
−17.3%
Cap rate
2.4%
DSCR
0.38×

Break-even

Price that breaks even
$225,776
Rent that breaks even
$6,228/mo

Long run

Year 30: property vs stocks
$1.37M vs $2.95M
Cash flow turns positive
not within 30 years

Monthly

Monthly breakdown

Rent$3,675
Vacancy (6%)−$220
Collected$3,454
Property tax Estimate−$1,050
Insurance Estimate−$300
Water, sewer, trash Estimate−$255
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (8% of rent)−$294
Capital reserve (8% of rent)−$294
Net operating income$1,202
Mortgage (principal + interest)−$3,193
Cash flow−$1,991
Principal paid down (equity, not cash)$406

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$1,368,748
Your equity when you sell
$1,368,748

Sells for $1,456,115 (value up 3% a year), minus 6% selling cost ($87,367). Rent paid down $479,920 of loan.

Rental profits, invested at 7%
$0

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

Same money in stocks$2,953,694
Cash to close, invested at 7%
$1,050,316

$137,977 put into an index fund instead of the down payment and closing costs.

Monthly shortfalls, invested
$1,903,378

$544,265 you'd have paid in while the building lost money, invested instead.

Stocks come out $1,584,946 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 $1.37M, stocks $2.95M. 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.

2 bed estimate $1,225/mo · range $1,075–$1,550 · 7 rentals within 2.5 mi

AddressRentBd / BaSq ftDistanceListedType
429 Deldona Dr Apt 2, Mankato $1,050 2 / 1 — 2.2 mi 2026-09-21 Apartment
428 Commodore Dr Apt 7, Mankato $1,050 2 / 1 — 2.2 mi 2026-09-14 Apartment
217 Thomas Dr E, Eagle Lake $1,495 2 / 1.5 1,232 2.4 mi 2025-05-29 Apartment
701 S Victory Dr, Mankato $1,199 2 / 1 — 2.4 mi 2026-08-10 Apartment
630 Maple Ln, Eagle Lake $1,574 2 / 1.5 1,200 2.4 mi 2026-08-26 Apartment
50 Hilltop Ln, Mankato $950 2 / 1 840 2.4 mi 2026-03-06 Apartment
920 Patriot Dr, Mankato $1,205 2 / 1 957 2.4 mi 2026-05-15 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

  • highNot yet built, so the photos may not show the actual units and the closing timeline is uncertain. Listing says: Estimated Completion: 10/31/2026. · AI review
  • highPricing is far above what the rent estimates support, with deeply negative cash flow at ask. 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 3121 SCOTCH LN
  • mediumAsking is $374,124 above the price where cash flow breaks even ($225,776) at the default scenario. Based on: Derived: price $599,900 vs. break-even $225,776
  • mediumFacts show 3 units but the description sells a duplex. The unit count and rent estimates may be wrong. Based on: data: listing.unit_count · AI review

Opportunities

  • New build with 3 bed / 2.5 bath units, main-floor laundry and a zero-entry design could rent above our 2-bed estimate and keep repairs low for years. Listing says: Each unit has three bedrooms, 2.5 bathrooms, main floor laundry. · AI review
  • Laundry appliances are included, which helps tenant appeal. Listing says: Laundry appliances are included. · AI review

Questions for the agent

  • Is this a duplex or three units? Which is it per the plans and permit?
  • What rents is the builder projecting for each 3-bed side, and are there comparable new builds already leased nearby?
  • Will tenants pay utilities, and are the units separately metered for gas, electric and water?
  • What is the estimated property tax on the finished building, and will it be assessed as non-homestead?
  • What warranty does the builder give, and what happens to the deposit if completion slips past 10/31/2026?
  • Is the price negotiable, since it's about $196K above the break-even price?

Bottom line

Nice-looking new duplex, but at $599,900 it loses about $2,000 a month on our numbers, and it isn't built yet. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Estimateestimate. No tax record found; 2.1% of price.$12,598
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$3,600
Water, sewer, trash / mo Estimateestimate. $85/unit/mo, owner-paid$255
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 2026-08-29 (37 days); last sold for $2,504,242 on 2025-09-12.

DateEventPrice
Listed$599,900
Removed$308,000
Relisted$308,000
Removed$308,000
Listed$308,000
Sold public record$2,504,242

From the listing Listing

Listed asmulti-family
Property tax, 2026$512
CountyBlue Earth County
Parcel number010914100029

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 Mankato on rental licensing before you buy.