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639 S 5th Ave Duplex
C Composite 57.6
Why this score? — see what drove the C 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 +22.4/30.0
  • ARV discount +7.5/15.0
  • 1% rule +7.4/10.0
  • DSCR +7.2/10.0
  • Schools +3.7/10.0
  • Livability +3.6/5.0
  • Rent growth +3.3/5.0
  • Condition / age +2.5/5.0
  • Appreciation +0.0/10.0

$560,000

639 S 5th Ave · Mount Vernon, NY 10550
6 bd · 0.0 ba · — sqft · MultiFamily · 38 Days on market
Built 1920 4,792 sqft lot ↓ 4% since listing

🖨 Deal sheet (PDF) 📄 Offer letter ✓ Due diligence

Multi-family units

County records classify this as Multi-Family (2-4 Unit). Listing-text estimate: 2 units. confirmed

Listing remarks

Take A Look At This Beautiful 2 Family Home Nestled In Mount Vernon, NY. Property boasts a Large 5 Bedroom Duplex over a Large 2 Bedroom Apartment Over A Basement. Driveway For Multiple Cars And Large Backyard.

Key facts

  • Large backyard
  • 4,792 sq ft lot
  • Built 1920

Tags

LARGE BACKYARDDRIVEWAY FOR MULTIPLE CARS

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 2 × 3-bed/1.5-bath units multifamily listed at $560k.

Deal economics

  • At list price, monthly cash flow is $935 ($11k/yr) — positive. Per door: $467/mo.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($7k rent vs $560k).
  • Recommended offer: $543k (3.0% below list) — sets the bar for market timing.
  • Cap rate 8.3% vs local median 5.2% in Mount Vernon — 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 71/100 on livability (#397 in NY) — a middle-class / working-renter tenant base. Strengths: commute A+, health & safety A, employment B; Watch: crime D-, cost of living F.
  • Mount Vernon School District (suburban): math 35% / reading 50% proficiency, ranked #485 of 590 in NY (top 82%) — families likely to look elsewhere, expect single-tenant / working-renter base with shorter leases; 62% free/reduced lunch — lower-income household profile, screen leases tightly.
  • Market conditions: Rents rising (+3.4%/yr); 130 active listings in the ZIP; 5 comparable units currently listed for rent nearby; rentals at typical pace (median 25d on market — plan ~3-4 weeks tenant-placement turnaround); 954 units permitted in Westchester County in 2024 (649 in 5+ unit buildings).
  • At $6,972/mo this rent would consume 138% of the median local household income ($61k/yr) (locally 2963% 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 $4k of loan paydown is wiped out by about $17k of value loss. Plan a longer hold.
  • Westchester County population projected at +10% by 2050 — modest demand growth; plan on rents tracking national, not racing it.

Negotiation context

  • It's been on market 38 days — a 3% lower offer ($543k) is reasonable based on typical stale-listing flexibility.
  • 6 sale attempts 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.

Risks & watch-outs

  • Watch-outs: property tax is 3.0% of price; built in 1920 — expect roof / HVAC / electrical / plumbing capex.
  • Climate carrying-cost: major wind risk, 27% chance of damaging wind over 30y; extreme-heat days projected 7→15/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $543,200 (3.0% below list)

Questions for the listing agent

  1. It's been on market 38 days. Have you received any prior offers? Is the seller open to a 3% concession, seller financing, or rate buy-down credit?
  2. Can we see the unit-by-unit rent roll, current vacancy, and any below-market leases? What's the average tenancy length?
  3. What capital expenditures (roof, boiler, parking lot, exteriors) have been made in the last 5 years, and what's planned in the next 2?
  4. Built in 1920 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  5. Property tax is high relative to price — has the assessment been appealed recently, and will the sale trigger a re-assessment?
  6. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  7. Crime grade is D in this area — have there been break-ins, vandalism, or insurance claims at this property in the last 3 years? What carrier currently insures it and at what premium?
  8. 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.
  9. 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.
  10. How much new apartment / multifamily construction is in the pipeline within 1–3 miles? Heavy new supply (>2% of stock underway) typically softens rents 12–24 months out; light construction supports rent growth.

Investment metrics

1% rule
1.24%
Cap rate
8.30%
Cash-on-cash
7.15%
DSCR
1.32
GRM
6.7

CMA / ARV

No comps found within radius.

Show comp detail 12 sales within ~0.75 mi
Address Dist Beds/Ba Sqft Sold Price $/sf Match
639 S 5th Ave 0.00mi 6/— 0mo $510,000 87
605 S 6th Ave 0.10mi 5/2.0 (-1) 0mo $990,000 70
557 S 5th Ave 0.12mi 5/2.0 (-1) 1,975 4mo $450,000 $228 65
1461 E 233rd St 0.43mi 6/2.0 2,695 1mo $950,000 $353 59
421 S 10th Ave 0.48mi 5/2.0 (-1) 5mo $650,000 48
132 East 4th St 0.67mi 6/2.0 2,800 0mo $700,000 $250 48
128 E 4th St 0.67mi 6/2.0 2mo $770,000 46
450-452 Franklin Ave 0.44mi 7/3.0 (+1) 5mo $740,000 46
4331 Wilder Ave 0.66mi 5/2.0 (-1) 1,574 2mo $803,000 $510 42
4423 Mundy Ln 0.61mi 7/3.0 (+1) 1mo $880,000 41
2028 Pitman Ave 0.64mi 5/3.0 (-1) 1,824 2mo $770,000 $422 39
4216 Edson Ave 0.72mi 6/3.0 3,186 3mo $930,000 $292 39

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 · 3.37% rent growth · sell at horizon

5-year hold
IRR
-4.8%
Equity multiple
0.82×
Total profit
$-28,076
Equity at exit
$83,498
10-year hold
IRR
5.5%
Equity multiple
1.42×
Total profit
$65,153
Equity at exit
$48,419

Cash invested: $156,800 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (STATE)
15 Strongly Tenant-Friendly
State New York
15 Strongly Tenant-Friendly · D+10
County
— inherits STATE
City
— inherits STATE
NYC rent stabilization (~1M units); 2019 HSTPA strengthened tenant rights; courts deeply backlogged.

ZIP-level market 10550

Rents YoY
3.4%
Active inventory
130
Price-to-rent
13.4×

Monthly cashflow live

Estimated rent
$6,972 high interval (Pro) →
Mortgage (P&I)
$2,937
Tax from tax record
$1,403 /mo · $16,839/yr
Insurance
$233
HOA
$0
Vacancy / Maint / Mgmt
$1,464
Net cashflow
$935

Break-even live

Break-even rent $5,789
Max offer price $560,000
Occupancy floor 82%

Sensitivity live

Price -10% $1,252 -5% $1,093 +0% $935 +5% $776 +10% $618
Rent -10% $384 -5% $659 +0% $935 +5% $1,210 +10% $1,485
Rate -1.0pp $1,217 -0.5pp $1,077 base $935 +0.5pp $789 +1.0pp $642

2-unit breakdown (identical units grouped — click to expand)

UnitsBedsBathsEst. rent
Total (2 units) $6,972

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
$140,000
Closing costs
$16,800
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 5 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
641 S 5th Ave Unit 2nd/3rd Floor Mt Vernon, NY 5.0 2.0 1800 $3,900 $2.17 5d 1 0.04mi
142 W 5th St Mount Vernon, NY 6.0 2.0 1250 $3,756 $3.00 19d 1 0.49mi
33 Union Ln Unit 2 Mt Vernon, NY 5.0 1.0 $4,000 25d 1 0.50mi
33 Union Ln Mount Vernon, NY 5.0 1.0 1200 $4,200 $3.50 25d 1 0.50mi
310 S 7th Ave Mount Vernon, NY 5.0 2.0 1000 $4,800 $4.80 25d 1 0.57mi

Listing history 2 events

  1. 2026-06-07
    remarks 210-char remark
  2. 2026-06-07
    listed $560,000 Pending 38 DOM

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

Tax reassessment forecast NY · Partial reset (capped growth)

Current annual tax
$16,839 · $1,403/mo
Projected year-2 tax
$16,839 · $1,403/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 (unshaded) · 0% chance over 30 yrs
  • 🔥 Wildfire 1/10 Low
  • 🌡 Heat 6/10 Major 7 d/yr ≥99°F today · 15 d/yr by 30 yrs out
  • 💨 Wind 6/10 Major 27% chance of damaging wind over 30 yrs
  • 🫁 Air quality 5/10 Major 6 unhealthy d/yr today · 8 by 30 yrs out

Nearby sold comps map

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Walkable amenities ~0.75 mi

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Taxation est. · year 1

Rental income
$83,664
− Mortgage interest
−$31,369
− Property taxes
−$16,839
− Insurance
−$2,800
− Repairs & maintenance
−$6,693
− Management
−$6,693
− Depreciation
−$16,291
Taxable income
$2,979
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$715
After-tax cash flow
$10,500/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
Mount Vernon School District
NCES district ID
3620100
Math proficiency
35% ▼ -3.00%
Reading proficiency
50% ▲ 6.00%
Median HH income
$50,890
Composite
36.59/100
National rank
#4631
State rank
#485 of 590 in NY

Livability — Mount Vernon

Score
71/100
State rank
#397
US rank
#6876

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Mount Vernon, NY
County
Westchester County · 709,332 people
City population
61,313
Metro
New York-Newark-Jersey City, NY-NJ-PA
Population (ZIP)
38,972
Household income
$60,701
Rent vs Own
71.8% rent · 28.2% own
Severe rent burden
2963.0

Population outlook (Westchester County) Hauer SSP2

Today (2025)
1,028,035 people
By 2030
1,051,636 · +2.3%
By 2040
1,098,520 · +6.9%
By 2050
1,136,044 · +10.5%
By 2075
1,196,925 · +16.4%
By 2100
1,175,147 · +14.3%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Predominantly Black (66%)
Race & ethnicity
Black 66% Hispanic / Latino 20% Two or more races 12% White 7% Asian 1%
Hispanic origin (detail)
Mexican 3% Puerto Rican 5% Dominican 4%
Common ancestry
Estonian 2% Hispanic 1% Russian 1%
Foreign-born
34% · Canada, China, Jamaica
Languages at home
73% English-only · Spanish 16% Other Indo-European 4% French/Haitian/Cajun 2%

Political lean MEDSL · Westchester

2024 margin
Strong D (+26.3) · D 63.1% · R 36.9%
2008→2024 swing
-1.3pp toward R · 2008: 27.6pp · 2024: 26.3pp
All cycles
2024: D+26.3 2020: D+36.3 2016: D+32.8 2012: D+22.2 2008: D+27.6

Not yet ingested

Civics

Market trends

HPI YoY
▼ -140.69%
Current HPI
191.5235
Rent YoY
▲ 3.37%
Metro
New York-Newark-Jersey City, NY-NJ-PA
State GDP YoY
▲ 2.60%
F500 in state
92

Industry mix (Fortune 500 HQ in NY)

Industry F500 HQs Revenue

Price history

-4.3% since first listed
11 events — show timeline
  • 2026-06-04 Pending OneKey® MLS as Distributed by MLS Grid
  • 2026-04-15 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2026-03-25 Pending OneKey® MLS as Distributed by MLS Grid
  • 2026-03-09 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2026-03-09 Listing Removed OneKey® MLS as Distributed by MLS Grid
  • 2026-03-06 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2026-03-06 Price Changed $560,000 OneKey® MLS as Distributed by MLS Grid
  • 2026-03-06 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2026-03-06 Price Changed $584,000 OneKey® MLS as Distributed by MLS Grid
  • 2025-10-16 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2025-09-08 Listed $585,000 OneKey® MLS as Distributed by MLS Grid

Property tax history

+2.2%/yr

Latest (2025): $16,839 · +2.1% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

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