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429 Mount Ida St

Fourplex · 4 units: 2 bed / 1 bath ×4 unit split estimated · 3,288 sq ft

Saint Paul, MN · Payne – Phalen (Railroad Island) · View the listing ↗

Cash flows

Photos courtesy of Keller Williams Premier Realty, via Realtor.com.

Asking price
$510,000
4 units · $128K per unit
Monthly cash flow
$242
at 20% down, 7%
Estimated rent
$5,800/mo
low confidence · 6 rentals within 0.75 mi
Break-even price
$555,556
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a four-plex asking $510K that the seller bought for $505K in October 2023, so there's almost no gain in nearly three years. Our underwriting at asking shows about +$242/mo cash flow with a 7.0% cap rate, so it works at today's rates at asking, and our break-even price is about $556K. The listing gives no rents, but the Fannie/Freddie operating statement in the photos shows four units at roughly $1,350 each and gross income of about $62,900 a year. Treat that as the seller's paperwork until you see leases and bank deposits. The description mentions voucher-assisted tenants, a pending rental license and a C fire-inspection grade, so check those first. It's worth a showing only if the agent can produce a real rent roll and the numbers hold up.

Things to consider

  1. Cash flow is positive at asking Our underwriting shows +$242/mo at ask and a break-even near $556K. The cushion depends on our $1,450 rent estimates, which are above the seller's $1,350, so verify rents with leases.
  2. Seller's expense sheet looks light The $10.5K expense figure in the photos is low against $7.7K taxes alone, plus insurance, repairs and any owner-paid utilities. Rebuild expenses from actual bills.From photo 6
  3. Rent roll quality and voucher exposure Seller rents of about $1,350 are below our $1,450 estimate, and voucher payments come with inspection rules and slower rent changes. Verify with leases.Listing says: “a stabilized rent roll with a mix of self-pay and voucher-assisted income”
  4. Licensing and fire-inspection status A pending license and grade C can bring repair orders and cost. Open orders could delay closing or increase your budget.
  5. Upside plans are speculative Adding bedrooms depends on egress, permits and costs. Value it as a possibility only.Listing says: “add up to two bedrooms on each top floor”
  6. Special assessments add to costs $1,071 on the tax bill raises carrying costs unless it ends or the seller pays it at closing.

From the photos

Listing photo 2
1 of 7Plus

The roof shingles appear new and match the 2025 roof claim. The gutters and downspouts also look recent.

Listing photo 1
2 of 7Concern

The stucco exterior looks dirty and stained, and the paint on the trim is worn. Check the stucco for cracks or moisture.

Listing photo 2
3 of 7Check

Overhead wires run to the building and the meters sit on the back wall. Count the meters to confirm whether utilities are separate.

Listing photo 4
4 of 7Concern

The units shown have older finishes: clawfoot tubs, dated cabinets, worn carpet, and a basic range and refrigerator. Expect cosmetic updating at turnover.

Listing photo 2
5 of 7Concern

The rear yard looks cluttered and the front has a chain-link fence. Curb appeal is average.

Listing photo 4
6 of 7Check

Only Units 1 and 2 are shown. Unit 3 and 4 interiors, the basement, mechanicals and the electrical panel are missing.

Listing photo 6
7 of 7Concern

An operating income statement shows $1,350 rents for each of four units and about $10.5K annual expenses. That looks too low for a 4-plex and likely excludes owner-paid utilities.

Based on 6 of the listing photos. Photos can hide as much as they show; an inspection is the real answer.

Condition and repairs

  • doneNew roofListing says: New roof and new gutters in 2025.
  • doneNew guttersListing says: New roof and new gutters in 2025.

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
$510,000
Cash to close
$117,300
Price per unit
$127,500
GRM
7.3

Each month

Cash flow
$242/mo
Cash-on-cash
2.5%
Cap rate
7.0%
DSCR
1.09×

Break-even

Price that breaks even
$555,556
Rent that breaks even
$5,481/mo

Long run

Year 30: property vs stocks
$2.55M vs $893K
Cash flow turns positive
year 1

Monthly

Monthly breakdown

Rent$5,800
Vacancy (6%)−$348
Collected$5,452
Property tax Public record−$646
Insurance Estimate−$405
Water, sewer, trash Estimate−$340
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (9% of rent)−$522
Capital reserve (9% of rent)−$522
Net operating income$2,957
Mortgage (principal + interest)−$2,714
Cash flow$242
Principal paid down (equity, not cash)$345

Cash flow each year

Rents +3%/yr (St. Paul's cap for sitting tenants), 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$2,552,565
Your equity when you sell
$1,163,630

Sells for $1,237,904 (value up 3% a year), minus 6% selling cost ($74,274). Rent paid down $408,000 of loan.

Rental profits, invested at 7%
$1,388,935

$640,439 of cash flow over 30 years, plus what it earned invested.

Same money in stocks$892,918
Cash to close, invested at 7%
$892,918

$117,300 put into an index fund instead of the down payment and closing costs.

The building comes out $1,659,647 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 $2.55M, stocks $893K. The property wins.

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 $1,450/mo · range $1,025–$1,525 · 6 rentals within 0.75 mi

AddressRentBd / BaSq ftDistanceListedType
468 Beaumont St E Unit 4, Saint Paul $1,350 2 / 1 800 0.1 mi 2026-07-10 Apartment
685 Burr St, Saint Paul $1,450 2 / 1 750 0.1 mi 2026-04-08 Apartment
665 Bedford St Unit 2, Saint Paul $1,400 2 / 1 800 0.2 mi 2023-12-20 Duplex triplex
904-906 Burr St, Saint Paul $999 2 / 1 900 0.4 mi 2025-01-11 Apartment
953 Desoto St, Saint Paul $950 2 / 1 650 0.5 mi 2026-02-12 Apartment
1039-1041 Arkwright St, Saint Paul $1,445 2 / 1 1,100 0.7 mi 2026-09-19 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

  • highRental license shows as pending and the listed expiry date has passed. Confirm the building is legally licensed as four units. Based on: data: city.rental_license · AI review
  • highLast sale was $505K in 2023 and the ask is $510K. The county market value is only $369K, so the price rests on rents and upside, not on value. Based on: data: county.market_value · AI review
  • mediumFire-inspection grade C: more deficiencies than typical; expect more frequent inspections and repair orders. Public record: St. Paul Certificate of Occupancy – Residential: 429 MOUNT IDA ST, grade/tier=C, status=Pending
  • medium$1,071 in special assessments on the payable 2026 tax bill (often street, sewer or code-enforcement charges). Ask what they're for, whether they continue, and whether the seller pays them off at closing. Public record: Ramsey County parcel 322922220019: special assessments (payable 2026) = $1,071.04
  • mediumVoucher-assisted tenants add inspection requirements and paperwork. Rent-increase timing is also limited by the program and by the 3% cap. Listing says: a mix of self-pay and voucher-assisted income · AI review
  • mediumStucco and an 1890 build suggest older systems. The listing says nothing about the boiler or furnace, the wiring or the plumbing. Based on: data: listing.year_built · AI review
  • mediumThe upside plan (below-grade bedroom, extra top-floor bedrooms) depends on egress and permits that aren't confirmed. Don't price it in. Listing says: buyer to verify egress and permitting with the City of Saint Paul · AI review

Opportunities

  • The second-floor unit opens October 1, so a buyer could live there and have the other three units cover costs. Owner-occupant financing might be available. Listing says: 431 Mount Ida, second floor, opens October 1 · AI review
  • Storage rentals in the basement could add small income if the space is dry and legal to rent. Listing says: build out rentable storage in the basement · AI review
  • A new roof lowers the near-term big-ticket risk. Listing says: New roof and new gutters in 2025. · AI review

Questions for the agent

  • Can I see the current rent roll, leases and 12 months of expenses? Which tenants are on vouchers and what are their rents?
  • What is the status of the rental license, and what are the C-grade fire-inspection deficiencies? Are any orders still open?
  • What are the $1,071 in special assessments for, and does the seller pay them at closing?
  • Who pays for heat, water, and electricity, how many boilers or furnaces are there, and how old are they?
  • Why is the second floor vacant on October 1, and what was the prior rent?
  • Is the seller open to a price cut given the 2023 purchase at $505K?

Bottom line

A tidy-looking four-plex with a new roof, and $510K is full price for a building the seller bought at $505K in 2023, but cash flow is positive at ask. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Public recordRamsey County record, payable 2026 (non-homestead)$7,749
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$4,864
Water, sewer, trash / mo Estimateestimate. $85/unit/mo, owner-paid$340
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 1890: +1 pt capital reserve; 8 bedrooms: +1 pt repairs for wear9% / 9%

Price history Realtor.com

On the market since 2026-09-04 (31 days); last sold for $505,000 on 2023-10-17.

DateEventPrice
Listed$510,000
Sold$505,000
Sold$168,000
Listed$180,000

County record Public record

Recorded asapartments 4-6 rental units
Living units4
Year built1890
Market value (2026)$369,400
Property tax, payable 2026$7,749
Special assessments$1,071
Homesteadno
Last sale2023-10-17 · $505,000

Source: Ramsey County parcel records.

City rental certificate (CofO)

Residential 3+ Units: 4 unit(s), C, status pending, renews 2025-10-06.

Nearest highway

I 35E;US 10, about 617 m away.

Crime in Payne – Phalen

1,695 incidents in the last 12 months (51 per 1,000 residents), −10% vs. the year before. St. Paul police incidents, excluding proactive visits and community events.