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686 Sherburne Ave

Duplex · 2 units: 2 bed / 2 bath and 3 bed / 2 bath · 1,904 sq ft

Saint Paul, MN · Frogtown (Thomas-Dale) · View the listing ↗

Cash flows

Photos courtesy of Keller Williams Integrity RE - Broker, via Realtor.com.

Asking price
$119,900
2 units · $60K per unit
Monthly cash flow
$903
at 20% down, 7%
Estimated rent
$3,200/mo
medium confidence · 11 rentals within 1.5 mi
Break-even price
$289,474
where cash flow hits $0

Adjust the numbers See the full breakdown

First look

This is a gut-rehab play, not a rental. It's a Category 2 vacant building, boarded up, with a 5-bed, 2-unit layout one block from light rail. The underwriting shows $903/mo and a 15% cap, but that assumes a finished, rentable building at the ask. It leaves out rehab cost, code-compliance work, and the $12,306 in assessments. The seller paid $265,000 in 2023 and now asks $119,900 after 143 days, so something is badly wrong with the building. Before a showing, get the city's code-compliance list and a contractor's estimate. Also confirm the heating, plumbing and electrical systems can be brought up to code at all.

Things to consider

  1. Rehab cost drives the whole deal The underwriting assumes finished units at the ask price, so the 15% cap rate overstates the return. Get a contractor bid before trusting any cash flow number.
  2. Vacant building status limits the buyer Category 2 buildings can't be occupied without city approval and a compliance plan. Expect fees, timelines and possibly financing limits.
  3. Assessments add to the true price $12,306 in assessments is roughly 10% of the ask. If the buyer inherits them, the effective cost rises.
  4. Rental license is not on file You'll need to get a rental license after the rehab passes inspection, so confirm the process and timeline with the city.
  5. Rent upside is large once rehabbed Our mid-rent estimates total about $3,200/mo for the two units, which could work if the all-in cost stays well below value. New tenants set the initial rent freely, and the 3% cap applies only after that.

From the photos

Listing photo 1
1 of 7Concern

Front porch and entry are fenced and boarded. The front window is covered in plywood and the door appears to be a replacement.

Listing photo 2
2 of 7Concern

Several windows on the side of the house are boarded. Siding looks dated and the paint is worn, but the roof appears intact from the ground.

Listing photo 3
3 of 7Concern

Walls show peeling paint, scuffs and patched damage. Flooring looks worn and stained.

Listing photo 6
4 of 7Concern

Kitchen has dated dark cabinets and laminate counters, with no stove or refrigerator visible. A wall-mounted microwave is the only appliance. Plan a full kitchen refit.

Listing photo 5
5 of 7Check

Bathrooms look basic and dated. The vanity and tub appear usable but the fixtures are old.

Listing photo 4
6 of 7Concern

Interior floors show stained or burned-looking patches. Check the subfloor condition.

Listing photo 1
7 of 7Check

No photos of the boiler or furnace, water heater, electrical panel or basement. Systems condition is unknown.

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

Condition and repairs

  • neededFull city code compliance required for the vacant buildingListing says: will require full city code compliance, making it an ideal project for investors, rehabbers

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
$119,900
Cash to close
$27,577
Price per unit
$59,950
GRM
3.1

Each month

Cash flow
$903/mo
Cash-on-cash
39.3%
Cap rate
15.4%
DSCR
2.41×

Break-even

Price that breaks even
$289,474
Rent that breaks even
$2,028/mo

Long run

Year 30: property vs stocks
$1.86M vs $210K
Cash flow turns positive
year 1

Monthly

Monthly breakdown

Rent$3,200
Vacancy (6%)−$192
Collected$3,008
Property tax Public record−$485
Insurance Estimate−$209
Water, sewer, trash Estimate−$170
Lawn care ($120 × 6 mo ÷ 12)−$60
Repairs (8% of rent)−$256
Capital reserve (9% of rent)−$288
Net operating income$1,541
Mortgage (principal + interest)−$638
Cash flow$903
Principal paid down (equity, not cash)$81

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$1,861,728
Your equity when you sell
$273,567

Sells for $291,029 (value up 3% a year), minus 6% selling cost ($17,462). Rent paid down $95,920 of loan.

Rental profits, invested at 7%
$1,588,161

$605,015 of cash flow over 30 years, plus what it earned invested.

Same money in stocks$209,923
Cash to close, invested at 7%
$209,923

$27,577 put into an index fund instead of the down payment and closing costs.

The building comes out $1,651,805 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 $1.86M, stocks $210K. 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 $1,475/mo · range $1,350–$1,675 · 13 rentals within 0.75 mi

AddressRentBd / BaSq ftDistanceListedType
627 Aurora Ave W, Saint Paul $1,300 2 / 1 699 0.2 mi 2025-01-03 Apartment
769 University Ave W, Saint Paul $1,155 2 / 1 — 0.2 mi 2026-08-03 Apartment
787-789 Aurora Ave, Saint Paul $1,425 2 / 1 888 0.2 mi 2026-09-15 Apartment
490 Charles Ave Apt 3, Saint Paul $1,400 2 / 1 750 0.4 mi — Apartment
579 Van Buren Ave, Saint Paul $1,275 2 / 1 800 0.5 mi — Apartment
409 Lafond Ave Apt 2, Saint Paul $1,450 2 / 1 1,000 0.6 mi 2021-12-23 Apartment
640 Dayton Ave, Saint Paul $1,900 2 / 1 1,080 0.7 mi 2026-09-26 Duplex triplex
228 Victoria St N Apt 2, Saint Paul $1,695 2 / 1 1,000 0.7 mi 2026-09-01 Apartment
655 Selby Ave, Saint Paul $1,300 2 / 1 842 0.7 mi 2026-09-24 Apartment
755 Selby Ave, Saint Paul $1,500 2 / 1 1,003 0.7 mi 2026-02-18 Apartment

3 bed estimate $1,725/mo · range $1,575–$2,100 · 11 rentals within 1.5 mi

AddressRentBd / BaSq ftDistanceListedType
555-565 N Kent St, Saint Paul $1,435 3 / 1 875 0.3 mi 2026-04-29 Apartment
865/867 Hague Ave, Saint Paul $1,625 3 / 1 1,300 0.8 mi 2026-06-16 Apartment
690 Virginia St, Saint Paul $1,500 3 / 1 1,620 0.8 mi 2023-03-24 Apartment
987 Dayton Ave, Saint Paul $2,050 3 / 1 2,000 0.9 mi 2026-08-26 Apartment
989 Dayton Ave, Saint Paul $2,050 3 / 1 2,000 0.9 mi — Apartment
653 Galtier St, Saint Paul $1,750 3 / 1.5 1,520 0.9 mi 2025-08-06 Apartment
913 Ashland Ave, Saint Paul $2,000 3 / 2 1,600 1.0 mi 2026-09-05 Apartment
1305 University Ave W, Saint Paul $1,600 3 / 2 — 1.3 mi 2026-07-17 Apartment
1296/1298 Lafond Ave, Saint Paul $1,395 3 / 2 972 1.3 mi 2026-08-29 Duplex triplex
610 N Capitol Blvd Unit 3, Saint Paul $1,650 3 / 1 1,600 1.4 mi — 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

  • highOn the city's Vacant Building registry (Category 2). In St. Paul, Categories 2 and 3 can't be sold or occupied without city approval and a code-compliance plan. Public record: St. Paul Vacant Buildings registry: 686 SHERBURNE AVE, Category 2, vacant as of 04/04/2025
  • highSale and occupancy need city approval and a compliance plan. The rehab scope is unknown and could be large. Listing says: currently classified as a Category 2 vacant building and will require full city code compliance · AI review
  • highSpecial assessments of about $12K sit on the tax bill. Find out whether they transfer to the buyer. Based on: data: county.special_assessments · AI review
  • highWindows and openings are boarded up, and interior walls and floors show heavy wear. Likely vandalism or long vacancy, so check for water and hidden damage. Based on: photo 4 · AI review
  • mediumNo rental certificate (CofO) on file in the city's data. Ask whether the building is licensed as a rental and when it was last inspected. Public record: St. Paul Certificate of Occupancy – Residential: no record for 686 SHERBURNE AVE (dataset last updated mid-2025)
  • medium$12,306 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 352923140183: special assessments (payable 2026) = $12,306.02
  • mediumPrice fell from the $265K 2023 sale to $119.9K ask. That suggests serious condition or title problems. Based on: data: county.last_sale_price · AI review

Opportunities

  • Long time on market: room to negotiate. Based on: Listing data: 143 days on market
  • Low entry price for a 5-bed, two-unit building near light rail, if the rehab cost is manageable Listing says: just one block from the light rail · AI review
  • 143 days on market gives room to negotiate, especially against rehab and assessment costs Based on: data: listing.days_on_market · AI review
  • Our rent estimates ($1,575 for the 2-bed, $2,000 for the 3-bed) are strong against the price, but only after a full rehab Based on: data: rent_estimate · AI review

Questions for the agent

  • Can I get the city's Category 2 inspection report and the full list of required corrections?
  • What are the $12,306 in special assessments for, and does the seller pay them at closing?
  • Why was the building vacated, and was there a fire, condemnation or code enforcement?
  • Do the furnace, plumbing and electrical systems work, and is there a utility shut-off history?
  • Is financing possible on a vacant building, or is this cash only?
  • Why is the price so far below the 2023 sale of $265K?

Bottom line

Cheap for a reason: a boarded-up Category 2 vacant duplex where the rehab bill and $12K in assessments decide everything, so price the rehab before you get excited about the 15% cap. AI-assisted summary

What the records say

Where each number comes from

Property tax / yr Public recordRamsey County record, payable 2026 (non-homestead)$5,816
Insurance / yr Estimateestimate. from units, square feet and age; get a quote$2,504
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 1910: +1 pt capital reserve8% / 9%

Price history Realtor.com

On the market since 2026-05-15 (143 days); down $60,000 (33.4%) from the first ask of $179,900; last sold for $265,000 on 2023-05-15.

DateEventPrice
Price changed$119,900
Price changed$139,900
Price changed$149,900
Price changed$159,900
Relisted$169,900
Removed—
Price changed$169,900
Listed$179,900
Sold$265,000
Removed$140,000
Relisted$140,000
Removed$140,000
Listed$140,000

County record Public record

Recorded astwo family dwelling - up/dwn
Living units2
Year built1910
Market value (2026)$263,600
Property tax, payable 2026$5,816
Special assessments$12,306
Homesteadno
Last sale2023-05-15 · $265,000

Source: Ramsey County parcel records.

City rental certificate (CofO)

No record in St. Paul Certificate of Occupancy – Residential (dataset last updated mid-2025).

Nearest highway

I 94, about 509 m away.

Crime in Frogtown

824 incidents in the last 12 months (53 per 1,000 residents), −26% vs. the year before. St. Paul police incidents, excluding proactive visits and community events.