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508 Onderdonk Ave 6-Plex
C Composite 59.85
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 +24.1/30.0
  • DSCR +7.8/10.0
  • ARV discount +7.5/15.0
  • 1% rule +5.5/10.0
  • Schools +5.0/10.0
  • Livability +3.8/5.0
  • Rent growth +3.7/5.0
  • Condition / age +2.5/5.0
  • Appreciation +0.0/10.0

$1,799,000

508 Onderdonk Ave · New York, NY 11385
12 bd · 6.0 ba · 4,725 sqft · MultiFamily public records · 304 Days on market
Built 1930 2,500 sqft lot

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

Multi-family units

County records classify this as Multi-Family (5+ Unit). Listing-text estimate: 6 units. confirmed

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

Let us presents an exceptional investment opportunity in the heart of Ridgewood. This six-family building is comprised of six spacious two-bedroom, one-bathroom apartments, each designed with functional layouts that maximize living space and natural light. The property offers investors strong income potential with stable tenancy and a desirable unit mix that appeals to a wide range of renters. Each apartment features comfortable living areas, well-proportioned bedrooms, and classic finishes that provide both practicality and charm. With its solid construction and well-maintained condition, this building is ideal for long-term ownership or value-add strategies. The configuration of multiple

Key facts

  • 2,500 sq ft lot
  • Built 1930
  • Listed 304 days

Property features AI

Finance

  • Other: Estimated utility expense listed
  • Financial info: Rental income reported (45240); Financing options: exchange considered, bank mortgage, or cash

Exterior

  • Parking: No parking
  • Security: Secure lobby
  • Utilities: Hot water by gas; Heating fuel: gas; Electric: 110V
  • Home design: Attached building; Residential property; Zoned R6B
  • Construction: Block construction; Brick exterior; Asphalt/tar roof; Block foundation
  • Exterior features: Back yard

Interior

  • Kitchen: Units include microwave, refrigerator and stove
  • Bedrooms: Six 2-bedroom units (two on each floor across three floors); Each unit has 2 bedrooms
  • Flooring: Hardwood floors; Tile floors
  • Bathrooms: Six full bathrooms total (one full bath per unit)
  • Heating & cooling: Gas heating delivered by hot air; 110V electric service
  • Interior features: Window A/C units; Microwave; Refrigerator; Stove; Finished basement

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 6 × 2-bed/1.0-bath units multifamily listed at $1.80M.

Deal economics

  • At list price, monthly cash flow is $4k ($43k/yr) — positive. Per door: $592/mo.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($19k rent vs $1.80M).
  • Recommended offer: $1.58M (12.0% below list) — sets the bar for market timing.
  • Cap rate 8.7% vs local median 2.6% in New York — 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 75/100 on livability (#268 in NY, #4,188 nationally) — a middle-class / working-renter tenant base. Strengths: amenities A+, commute A+, health & safety A; Watch: crime F, cost of living F.
  • Zoned schools: Elm Tree Elementary School (math 27% / reading 52%, grade F, #1,444 of 2,108 statewide, top 71%, 806 students, 94% FRL); Is 227 Louis Armstrong (math 52% / reading 69%, grade B+, #153 of 729 statewide, top 21%, 1,528 students, 68% FRL); Midwood High School (math 94% / reading 96%, grade A+, #83 of 1,100 statewide, top 8%, 4,062 students, 73% FRL).
  • Market conditions: Rents rising fast (+5.0%/yr); 214 active listings in the ZIP; solid renter incomes; 5,302 units permitted in Queens County in 2024 (4,918 in 5+ unit buildings).
  • At $18,900/mo this rent would consume 255% of the median local household income ($89k/yr) (locally 5525% 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 $12k of loan paydown is wiped out by about $54k of value loss. Plan a longer hold.
  • Queens County population projected at +16% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
  • At projected returns (-3.0% appreciation + 5.0% rent growth), your $504k cash investment doubles in ~10 years — after that, you're playing with house money.

Negotiation context

  • It's been on market 304 days — a 12% lower offer ($1.58M) is reasonable based on typical stale-listing flexibility.
  • Current owner paid $447k; list at $1.80M implies a 302% gain — meaningful room to come down on a strong offer.

Risks & watch-outs

  • Watch-outs: built in 1930 — expect roof / HVAC / electrical / plumbing capex.
  • Climate carrying-cost: major wind risk, 40% chance of damaging wind over 30y; extreme-heat days projected 7→14/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $1,583,120 (12.0% below list)

Questions for the listing agent

  1. It's been on market 304 days. Have you received any prior offers? Is the seller open to a 12% 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 1930 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  5. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
  6. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  7. 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?
  8. Crime grade is F 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
1.05%
Cap rate
8.66%
Cash-on-cash
8.46%
DSCR
1.38
GRM
7.9

CMA / ARV

No comps found within radius.

Projected returns pro-forma

-3.0% appreciation · 4.97% rent growth · sell at horizon

5-year hold
IRR
-1.4%
Equity multiple
0.95×
Total profit
$-27,545
Equity at exit
$268,237
10-year hold
IRR
10.1%
Equity multiple
1.85×
Total profit
$428,918
Equity at exit
$155,545

Cash invested: $503,720 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (CITY)
0 Strongly Tenant-Friendly
State New York
15 Strongly Tenant-Friendly · D+10
County
— inherits STATE
City New York
0 Strongly Tenant-Friendly · D+34
Rent Stabilization Code; HSTPA; 6+ months in housing court.

ZIP-level market 11385

Rents YoY
5.0%
Active inventory
214
Price-to-rent
47.6×

Monthly cashflow live

Estimated rent
$18,900 high interval (Pro) →
Mortgage (P&I)
$9,434
Tax from tax record
$1,197 /mo · $14,361/yr
Insurance
$750
HOA
$0
Vacancy / Maint / Mgmt
$3,969
Net cashflow
$3,551

Break-even live

Break-even rent $14,406
Max offer price $1,799,000
Occupancy floor 76%

Sensitivity live

Price -10% $4,569 -5% $4,060 +0% $3,551 +5% $3,041 +10% $2,532
Rent -10% $2,057 -5% $2,804 +0% $3,551 +5% $4,297 +10% $5,044
Rate -1.0pp $4,457 -0.5pp $4,008 base $3,551 +0.5pp $3,084 +1.0pp $2,610

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

UnitsBedsBathsEst. rent
Total (6 units) $18,900

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
$449,750
Closing costs
$53,970
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 16 events

  1. 2026-06-22
    days on market $1,799,000 Active 304 DOM
  2. 2026-06-21
    days on market $1,799,000 Active 303 DOM
  3. 2026-06-18
    days on market $1,799,000 Active 300 DOM
  4. 2026-06-17
    days on market $1,799,000 Active 299 DOM
  5. 2026-06-15
    days on market $1,799,000 Active 297 DOM
  6. 2026-06-13
    days on market $1,799,000 Active 295 DOM
  7. 2026-06-10
    days on market $1,799,000 Active 291 DOM
  8. 2026-06-08
    days on market $1,799,000 Active 290 DOM
  9. 2026-06-03
    days on market $1,799,000 Active 285 DOM
  10. 2026-06-01
    days on market $1,799,000 Active 283 DOM
  11. 2026-05-31
    days on market $1,799,000 Active 282 DOM
  12. 2025-08-22
    listed $1,799,000 Active
  13. 2025-08-17
    price $1,799,000
  14. 2002-10-18
    soldstatus $447,000
  15. 1989-04-27
    soldstatus $195,000
  16. 1986-03-21
    soldstatus $148,000

ⓘ 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
$14,361 · $1,197/mo
Projected year-2 tax
$22,382 · $1,865/mo
Expected delta
+$8,021/yr (+$668/mo · 55.9%)

ⓘ 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 · 14 d/yr by 30 yrs out
  • 💨 Wind 6/10 Major 40% 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
$226,800
− Mortgage interest
−$100,772
− Property taxes
−$14,361
− Insurance
−$8,995
− Repairs & maintenance
−$18,144
− Management
−$18,144
− Depreciation
−$52,335
Taxable income
$14,050
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$3,372
After-tax cash flow
$39,234/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)

No district data.

Livability — New York

Score
75/100
State rank
#268
US rank
#4188

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
New York, NY
County
Queens County · 1,914,869 people
City population
7,731,280
Metro
New York-Newark-Jersey City, NY-NJ-PA
Population (ZIP)
101,704
Household income
$88,838
Rent vs Own
69.3% rent · 30.7% own
Severe rent burden
5525.0

Population outlook (Queens County) Hauer SSP2

Today (2025)
2,546,320 people
By 2030
2,643,059 · +3.8%
By 2040
2,815,563 · +10.6%
By 2050
2,944,423 · +15.6%
By 2075
3,123,338 · +22.7%
By 2100
3,098,688 · +21.7%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Diverse neighborhood (Simpson 0.61)
Race & ethnicity
Hispanic / Latino 45% White 43% Two or more races 17% Asian 7% Black 3%
Hispanic origin (detail)
Mexican 4% Puerto Rican 12% Dominican 8%
Common ancestry
Romanian 7% Scandinavian 1% Subsaharan African 1%
Foreign-born
39% · Canada, Jamaica, China
Languages at home
42% English-only · Spanish 34% Russian/Polish/Slavic 9% Other Indo-European 8%

Political lean MEDSL · Queens

2024 margin
Strong D (+24.6) · D 62.3% · R 37.7%
2008→2024 swing
-26.2pp toward R · 2008: 50.8pp · 2024: 24.6pp
All cycles
2024: D+24.6 2020: D+45.2 2016: D+53.4 2012: D+58.5 2008: D+50.8

Not yet ingested

Civics

Market trends

HPI YoY
▼ -213.55%
Current HPI
300.9364
Rent YoY
▲ 4.97%
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

+1115.5% since first listed
5 events — show timeline
  • 2025-08-22 Listed $1,799,000 BNYMLS
  • 2025-08-17 Price Changed $1,799,000 BNYMLS
  • 2002-10-18 Sold (Public Records) $447,000 Public Records
  • 1989-04-27 Sold (Public Records) $195,000 Public Records
  • 1986-03-21 Sold (Public Records) $148,000 Public Records

Property tax history

+5.8%/yr

Latest (2025): $14,361 · -0.9% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…