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511 S 11th Ave Fourplex
B- Composite 66.36
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 +23.3/30.0
  • ARV discount +15.0/15.0
  • 1% rule +7.5/10.0
  • DSCR +7.5/10.0
  • 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

$850,000

511 S 11th Ave · Mount Vernon, NY 10550
8 bd · 4.0 ba · 3,500 sqft · MultiFamily · 97 Days on market
Built 1940 5,227 sqft lot Est $1092k · 22% under

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Multi-family units

County records classify this as Multi-Family (5+ Unit). Listing-text estimate: 4 units. estimate disagrees with records

5+ unit building — per-unit beds/baths from public records are typically unavailable; the breakdown below (if shown) is an estimate from the listing text.

Listing remarks

4 Family Brick - Great Investment - Needs some work.

Key facts

  • 5,227 sq ft lot
  • Built 1940
  • Listed 97 days

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 4 × 2-bed/1.0-bath units multifamily listed at $850k.

Deal economics

  • At list price, monthly cash flow is $2k ($19k/yr) — positive. Per door: $390/mo.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($11k rent vs $850k).
  • Recommended offer: $774k (9.0% below list) — sets the bar for market timing.
  • Cap rate 8.5% vs local median 5.3% 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; 954 units permitted in Westchester County in 2024 (649 in 5+ unit buildings).
  • At $10,621/mo this rent would consume 210% 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 $6k of loan paydown is wiped out by about $26k 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 97 days — a 9% lower offer ($774k) is reasonable based on typical stale-listing flexibility.
  • 3 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 2.9% of price; built in 1940 — 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 $773,500 (9.0% below list)

Questions for the listing agent

  1. It's been on market 97 days. Have you received any prior offers? Is the seller open to a 9% 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 1940 — 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. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
  7. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  8. 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?
  9. 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.
  10. 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.
  11. 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
1.25%
Cap rate
8.49%
Cash-on-cash
7.86%
DSCR
1.35
GRM
6.7

CMA / ARV

ARV (on-the-fly)
$1,092,000
Comps found
6
Show comp detail 6 sales within ~0.75 mi
Address Dist Beds/Ba Sqft Sold Price $/sf Match
4172 De Reimer Ave 0.29mi 9/6.0 (+1) 3,768 (+8%) 9mo $1,050,000 $279 53
4239 Digney Ave 0.74mi 8/5.0 3,500 (0%) 12mo $1,473,500 $421 51
807 E 242nd St 0.68mi 7/4.0 (-1) 3,360 (-4%) 7mo $1,225,000 $365 51
135 Vista Pl 0.69mi 8/3.0 3,478 (-1%) 15mo $725,000 $208 50
418 S 1st Ave 0.52mi 7/4.0 (-1) 3,128 (-11%) 6mo $919,000 $294 48
251 S 2nd Ave 0.63mi 7/3.0 (-1) 3,200 (-9%) 16mo $999,000 $312 34

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
-3.8%
Equity multiple
0.86×
Total profit
$-33,773
Equity at exit
$126,738
10-year hold
IRR
6.5%
Equity multiple
1.50×
Total profit
$117,838
Equity at exit
$73,492

Cash invested: $238,000 (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
26.7×

Monthly cashflow live

Estimated rent
$10,621 high interval (Pro) →
Mortgage (P&I)
$4,457
Tax from tax record
$2,021 /mo · $24,248/yr
Insurance
$354
HOA
$0
Vacancy / Maint / Mgmt
$2,230
Net cashflow
$1,558

Break-even live

Break-even rent $8,649
Max offer price $850,000
Occupancy floor 80%

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

UnitsBedsBathsEst. rent
Total (4 units) $10,621

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
$212,500
Closing costs
$25,500
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.

Listing history 5 events

  1. 2025-10-28
    status Pending
  2. 2025-07-25
    status Active
  3. 2025-06-24
    status Pending
  4. 2025-06-24
    status Active
  5. 2025-05-14
    listed $850,000 Active

ⓘ 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
$24,248 · $2,021/mo
Projected year-2 tax
$24,248 · $2,021/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
$127,452
− Mortgage interest
−$47,613
− Property taxes
−$24,248
− Insurance
−$4,250
− Repairs & maintenance
−$10,196
− Management
−$10,196
− Depreciation
−$24,727
Taxable income
$6,221
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$1,493
After-tax cash flow
$17,206/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

5 events — show timeline
  • 2025-10-28 Pending OneKey® MLS as Distributed by MLS Grid
  • 2025-07-25 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2025-06-24 Pending OneKey® MLS as Distributed by MLS Grid
  • 2025-06-24 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2025-05-14 Listed $850,000 OneKey® MLS as Distributed by MLS Grid

Property tax history

+2.2%/yr

Latest (2025): $24,248 · +2.1% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…