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509 N 21st Ave Ave W
B+ Composite 78.29
Why this score? — see what drove the B+ grade

The composite is a weighted blend of 9 inputs, each scored 0–100. Each bar is that input's sub-score; the figure is the points it added to the 100-point composite (weight × sub-score).

  • Cash flow +30.0/30.0
  • ARV discount +15.0/15.0
  • 1% rule +10.0/10.0
  • DSCR +10.0/10.0
  • Schools +4.2/10.0
  • Livability +4.1/5.0
  • Rent growth +2.5/5.0
  • Condition / age +2.5/5.0
  • Appreciation +0.0/10.0

$120,000

509 N 21st Ave Ave W · Duluth, MN 55806
3 bd · 1.0 ba · 1,176 sqft · SingleFamily public records · 12 Days on market
Built 1909 2,178 sqft lot Est $179k · 33% under

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Listing remarks MLS

A spacious & well maintained home up on the hill w/ a bay & panoramic view from the second story deck. The kitchen has been updated- cabinets, sink, breakfast bar and a Jenn-Aire grill/rotisserie. All of the bedrooms are nice size w/ good size closets. Th

Key facts

  • New plumbing
  • Newer roof
  • Central a/c

Tags

NEWER ROOFNEWER WINDOWSNEW PLUMBINGNEW ELECTRICALCENTRAL A/CFENCED IN BACK YARD

Property features AI

Exterior

  • Parking: On-street parking
  • Utilities: Public water; Public sewer
  • Home design: Single-family detached residence; Single-story
  • Construction: Stone foundation; Built as a residential single-family home
  • Exterior features: Asphalt shingle roof; City street frontage; Lot dimensions approximately 33 x 75

Interior

  • Kitchen: Range; Refrigerator
  • Bathrooms: 1 full bathroom; 1 quarter bathroom
  • Heating & cooling: Forced air heating (natural gas); Central air conditioning
  • Interior features: Wood window frames; Full basement
  • Laundry & utility: Washer; Dryer

Neighborhood map

Property Rental comp Retail Transit Schools Stadiums Fortune 500 · Circle radius: 3.0 mi
Loading POIs…

What this means for you Summary

Snapshot

  • This is a 3-bed/1.0-bath single-family listed at $120k.

Deal economics

  • At list price, monthly cash flow is $740 ($9k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($2k rent vs $120k).
  • Cap rate 13.7% vs local median 4.9% in Duluth — top-decile yield for the area; either an underpriced asset or a hidden risk that comps aren't pricing in. Stress-test before assuming the spread holds.

Location & tenants

  • Location reads 82/100 on livability (#36 in MN, #1,060 nationally) — a professional / high-income tenant draw. Strengths: commute A+, cost of living A+, housing A+; Watch: amenities F.
  • Duluth Public School District (urban): math 44% / reading 55% proficiency, ranked #132 of 301 in MN (top 44%) — families likely to look elsewhere, expect single-tenant / working-renter base with shorter leases.
  • Market conditions: 44 active listings in the ZIP; 9 comparable units currently listed for rent nearby; rentals lingering (median 44d on market — plan ~5-8 weeks vacancy on turnover, expect pricing pressure); 56% of comp listings sitting > 30 days — soft ceiling on asking rent; lower-income renter base — watch delinquency; 639 units permitted in St. Louis County in 2024 (338 in 5+ unit buildings).
  • At $1,943/mo this rent would consume 54% of the median local household income ($43k/yr) (locally 506% of renters already pay >50% of income on rent) — very limited rent-growth headroom before tenants either downsize or default.

Forward outlook

  • Local home prices are declining (-3.0%/yr); year-one equity from $830 of loan paydown is wiped out by about $4k of value loss. Plan a longer hold.
  • At projected returns (-3.0% appreciation + 3.0% rent growth), your $34k cash investment doubles in ~5 years — after that, you're playing with house money.

Negotiation context

  • Only 12 days on market — expect competitive offers; lowballing is unlikely to land.
  • 5 sale attempts since 19y ago with the ask held roughly flat each time — persistent listings suggest the price (not the market) is what's stuck; bring a comps-based counter.
  • Current owner paid $75k; list at $120k implies a 60% gain — meaningful room to come down on a strong offer.

Risks & watch-outs

  • Watch-outs: built in 1909 — expect roof / HVAC / electrical / plumbing capex.
Recommended offer $120,000

Questions for the listing agent

  1. Built in 1909 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  2. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  3. Schools are B-rated — typically a magnet for longer-tenancy family renters. What's the average tenant stay here, and is there a school-zone premium baked into asking?
  4. What's the average days-on-market for RENTAL listings here right now (not sales)? A rising rental-DOM trend means longer vacancies and softer asking-rent achievability than the comps imply.
  5. What's the recent tenant-quality profile in this submarket — average credit score on applications, eviction rate, late-payment / NSF rate, and stable-employment percentage? A property-management company in the area should have these aggregated.
  6. How much new for-sale + rental construction is in the pipeline within 1–3 miles? Heavy new supply typically softens prices + rents 12–24 months out; constrained supply supports both.

Investment metrics

1% rule
1.62%
Cap rate
13.69%
Cash-on-cash
26.41%
DSCR
2.18
GRM
5.1

CMA / ARV

ARV (on-the-fly)
$178,752
Comps found
12
Show comp detail 12 sales within ~0.75 mi
Address Dist Beds/Ba Sqft Sold Price $/sf Match
2229 W 7th St 0.20mi 3/1.0 1,209 (+3%) 3mo $177,500 $147 83
517 N 22nd Ave Ave W 0.09mi 3/2.0 1,248 (+6%) 1mo $131,000 $105 81
314 N 19th Ave W 0.24mi 3/1.0 1,208 (+3%) 9mo $182,000 $151 77
1721 W 2nd St 0.38mi 2/1.5 (-1) 1,164 (-1%) 12mo $230,000 $198 64
2203 W 2nd St 0.24mi 3/1.0 1,326 (+13%) 6mo $150,000 $113 63
2326 W 2nd St 0.34mi 3/1.0 1,352 (+15%) 0mo $180,000 $133 59
520 Winnipeg Ave 0.56mi 3/1.5 1,121 (-5%) 6mo $190,000 $169 59
2208 W 8th St 0.20mi 2/2.0 (-1) 1,348 (+15%) 0mo $205,000 $152 57
2629 W 2nd St 0.55mi 3/1.5 1,292 (+10%) 0mo $110,000 $85 56
2723 W 4th St 0.58mi 3/2.0 1,248 (+6%) 12mo $230,000 $184 48
2626 W 5th St 0.50mi 3/1.5 1,336 (+14%) 11mo $209,000 $156 43
518 Winnipeg Ave 0.57mi 2/1.0 (-1) 1,047 (-11%) 11mo $175,000 $167 41

Match score weights: distance 35% · size 25% · config 20% · recency 20%. Top-matched comps best support the ARV.

Projected returns pro-forma

-3.0% appreciation · 3.0% rent growth · sell at horizon

5-year hold
IRR
20.2%
Equity multiple
1.82×
Total profit
$27,664
Equity at exit
$17,892
10-year hold
IRR
28.4%
Equity multiple
3.52×
Total profit
$84,774
Equity at exit
$10,375

Cash invested: $33,600 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (STATE)
46 Balanced
State Minnesota
46 Balanced · D+2
County
— inherits STATE
City
— inherits STATE
2024 reforms strengthened tenant protections; ramsey/hennepin courts paced moderate to slow.

ZIP-level market 55806

Active inventory
44
Price-to-rent
5.1×

Monthly cashflow live

Estimated rent
$1,943 high interval (Pro) →
Mortgage (P&I)
$629
Tax from tax record
$116 /mo · $1,398/yr
Insurance
$50
HOA
$0
Vacancy / Maint / Mgmt
$408
Net cashflow
$740

Break-even live

Break-even rent $1,007
Max offer price $120,000
Occupancy floor 57%

UW: 25.0% down · 7.5% · 30yr · 1.5% tax · 5.0% vac · 8.0% maint · 8.0% mgmt

Financing live

Cash to close

Down payment
$30,000
Closing costs
$3,600
Reserves months
Total cash needed

Loan-product check · same deal, 3 products live

Conventional

25% down · 7.5% · 30yr

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Personal DTI + credit; lowest rate.

DSCR

20% down · 8.5% · 30yr

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

No personal income docs; deal must DSCR.

Hard money

10% down · 12.0% · 12mo

Down + closing
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Short-term bridge; refi at stabilization.

Rent comps 9 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
2011 W Superior St Duluth, MN 2.0 1.0–2.0 670 $1,844 $2.75 13d 12 0.34mi
1302 W 1st St Apt 1 Duluth, MN 2.0 1.0 942 $1,275 $1.35 43d 1 0.76mi
1302 W 1st St Apt 2 Duluth, MN 2.0 1.0 942 $1,300 $1.38 43d 1 0.76mi
1125 Glen Place Dr Unit A05 Duluth, MN 2.0 1.0 788 $1,395 $1.77 43d 1 0.90mi
1115 W Michigan St Duluth, MN 2.0 1.0 600 $1,395 $2.33 43d 3 0.93mi
2302 Hillcrest Dr Duluth, MN 3.0 1.5 1072 $3,500 $3.26 43d 1 1.11mi
521 W 2nd St Duluth, MN 2.0 1.0 592 $1,600 $2.70 13d 2 1.40mi
100 N 5th Ave W Duluth, MN 3.0 1.0–2.0 1209 $3,299 $2.73 21d 7 1.45mi
100 N 5th Ave W Duluth, MN 3.0 1.0–2.0 1207 $3,999 $3.31 13d 1 1.45mi

Listing history 10 events

  1. 2026-06-01
    days on market $120,000 Active 12 DOM
  2. 2026-05-31
    days on market $120,000 Active 11 DOM
  3. 2026-05-30
    days on market $120,000 Active 10 DOM
  4. 2026-05-20
    listed $120,000 Active
  5. 2009-06-10
    soldstatus $75,000
  6. 2009-06-01
    soldstatus $75,000 267-char remark
    Show marketing remark (267 chars)

    A spacious & well maintained home up on the hill w/ a bay & panoramic view from the second story deck. The kitchen has been updated- cabinets, sink, breakfast bar and a Jenn-Aire grill/rotisserie. All of the bedrooms are nice size w/ good size closets. Th

  7. 2008-09-24
    listed $79,900 267-char remark
    Show marketing remark (267 chars)

    A spacious & well maintained home up on the hill w/ a bay & panoramic view from the second story deck. The kitchen has been updated- cabinets, sink, breakfast bar and a Jenn-Aire grill/rotisserie. All of the bedrooms are nice size w/ good size closets. Th

  8. 2008-01-21
    listed $79,900
  9. 2008-01-04
    listed $86,900
  10. 2007-08-07
    listed $89,900

ⓘ Source: listings_history table (triggers on properties + properties_extension) + one-shot backfill from property_details.listing_events for pre-trigger history.

Tax reassessment forecast MN · Partial reset (capped growth)

Current annual tax
$1,398 · $116/mo
Projected year-2 tax
$1,398 · $116/mo
Expected delta
$0/yr ($0/mo · 0.0%)

ⓘ Screening estimate from a state-policy table — verify with the county assessor before closing.

Climate risk First Street

  • 🌊 Flood 1/10 Low FEMA zone X · 0% chance over 30 yrs
  • 🔥 Wildfire 2/10 Low
  • 🌡 Heat 2/10 Low 7 d/yr ≥92°F today · 13 d/yr by 30 yrs out
  • 💨 Wind 1/10 Low
  • 🫁 Air quality 2/10 Low 0 unhealthy d/yr today · 1 by 30 yrs out

Nearby sold comps map

Loading sold comps map…

Walkable amenities ~0.75 mi

Loading nearby amenities…

Taxation est. · year 1

Rental income
$23,321
− Mortgage interest
−$6,722
− Property taxes
−$1,398
− Insurance
−$600
− Repairs & maintenance
−$1,866
− Management
−$1,866
− Depreciation
−$3,491
Taxable income
$7,379
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$1,771
After-tax cash flow
$7,103/yr

For passive investors: Depreciation is non-cash, so a rental often shows a tax loss while cash-flowing — sheltering income. Rental losses are passive: they offset passive income freely, and up to $25,000/yr can offset ordinary (W-2) income if you actively participate and your MAGI is under $100k (phasing out to $0 by $150k); unused losses carry forward. On sale, claimed depreciation is recaptured at up to 25%, and gains may owe capital-gains tax (a 1031 exchange can defer both). Figures are a year-1 estimate at your 24.0% rate — not tax advice; consult a CPA.

Schools (NCES district)

District
Duluth Public School District
NCES district ID
2711040
Math proficiency
44% ▼ -10.00%
Reading proficiency
55% ▼ -6.00%
Median HH income
$45,692
Composite
41.92/100
National rank
#3360
State rank
#132 of 301 in MN

Livability — Duluth

Score
82/100
State rank
#36
US rank
#1060

Category grades

Amenities F Commute A+ Cost of living A+ Crime C Employment C+ Housing A+ Health & safety A+ User ratings B-

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Duluth, MN
County
Saint Louis County · 115,152 people
City population
71,097
Metro
Duluth, MN-WI
Population (ZIP)
9,356
Household income
$42,833
Rent vs Own
57.9% rent · 42.1% own
Severe rent burden
506.0

Population outlook (St. Louis County) Hauer SSP2

Today (2025)
202,411 people
By 2030
203,234 · +0.4%
By 2040
202,520 · +0.1%
By 2050
200,853 · -0.8%
By 2075
200,943 · -0.7%
By 2100
192,058 · -5.1%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Predominantly White (79%)
Race & ethnicity
White 79% Two or more races 7% Black 7% Native American 5% Hispanic / Latino 3% Asian 1%
Common ancestry
Portuguese 10% Romanian 5% Scottish 2%
Foreign-born
4% · Canada, China
Languages at home
93% English-only · Other Indo-European 2% Spanish 2% Chinese 1%

Political lean MEDSL · St. Louis

2024 margin
D (+13.7) · D 55.9% · R 42.2% · Other 1.8%
2008→2024 swing
-18.8pp toward R · 2008: 32.5pp · 2024: 13.7pp
All cycles
2024: D+13.7 2020: D+15.6 2016: D+11.8 2012: D+29.6 2008: D+32.5

Not yet ingested

Civics

Market trends

HPI YoY
▼ -122.85%
Current HPI
195.9805
Rent YoY
Metro
Duluth, MN-WI
State GDP YoY
▲ 2.41%
F500 in state
34

Industry mix (Fortune 500 HQ in MN)

Industry F500 HQs Revenue

Price history

+33.5% since first listed
7 events — show timeline
  • 2026-05-20 Listed $120,000 LSAR
  • 2009-06-10 Sold (Public Records) $75,000 Public Records
  • 2009-06-01 Sold (MLS) $75,000 NORTHSTARMLS as Distributed by MLS Grid
  • 2008-09-24 Listed $79,900 NORTHSTARMLS as Distributed by MLS Grid
  • 2008-01-21 Listed $79,900 NORTHSTARMLS as Distributed by MLS Grid
  • 2008-01-04 Listed $86,900 NORTHSTARMLS as Distributed by MLS Grid
  • 2007-08-07 Listed $89,900 NORTHSTARMLS as Distributed by MLS Grid

Property tax history

+6.8%/yr

Latest (2025): $1,398 · +1.9% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…