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135 Corwin St
B+ Composite 77.43
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 +4.5/10.0
  • Livability +2.9/5.0
  • Rent growth +2.5/5.0
  • Condition / age +2.5/5.0
  • Appreciation +0.0/10.0

$725,000

135 Corwin St · Greenport West, NY 11944
5 bd · 1.5 ba · 1,700 sqft · SingleFamily · 50 Days on market
Built 1958 0.42 ac lot $426/sqft · 17% below area Est $877k · 17% under ↓ 9% since listing

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Listing remarks

Opportunity knocks! This rare farmhouse style cottage rests on an expansive double lot on the edge of Greenport Village and is prime to be revamped. Featuring 1700sqft of interior space, a large block foundation with full basement throughout most of the footprint, a 12x22 detached garage and a yard that will allow your imagination to run wild. Walk into town, walk to 5th and 6th street beaches and easy access to all that the North Fork has to offer.

Key facts

  • Expansive double lot
  • Full basement
  • Walk to town

Tags

FARMHOUSE STYLE COTTAGEEXPANSIVE DOUBLE LOTLARGE BLOCK FOUNDATIONFULL BASEMENTDETACHED GARAGEWALK TO TOWN

Property features AI

Exterior

  • Parking: Driveway; Attached garage (1 space)
  • Utilities: Cesspool sewer; Cable connected; Electricity connected; Phone connected; Water connected
  • Home design: Single family residence; Measured living area
  • Construction: Block, frame, and shingle siding construction; Partial basement
  • Exterior features: Not waterfront; Exterior finished with block, frame, and shingle siding

Interior

  • Kitchen: Dishwasher; Electric range; Freezer; Refrigerator
  • Bedrooms: 10 total rooms (includes bedroom(s) on first floor)
  • Flooring: Carpet; Wood
  • Bathrooms: 1 full bathroom; 1 half bathroom
  • Heating & cooling: Baseboard heating; No central cooling
  • Interior features: First-floor bedroom; First-floor full bathroom; Partial basement; Full and partial attic
  • Laundry & utility: Laundry located in 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 5-bed/1.5-bath single-family listed at $725k.

Deal economics

  • At list price, monthly cash flow is $6k ($76k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($14k rent vs $725k).
  • Recommended offer: $703k (3.0% below list) — sets the bar for market timing.
  • Cap rate 16.7% vs local median 8.0% in Greenport West — 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 58/100 on livability (#1,073 in NY) — a working-class tenant base; expect higher turnover. Strengths: crime A+, employment A+; Watch: amenities F, commute F, cost of living F.
  • Greenport Union Free School District (town): math 55% / reading 45% proficiency, ranked #450 of 755 in NY (top 60%) — acceptable for families but not a draw, mixed tenant base, ~2y average lease.
  • Zoned schools: Greenport Elementary School (math 47% / reading 62%, grade C, #908 of 2,108 statewide, top 46%, 339 students, 61% FRL); Greenport High School (math 52% / reading 54%, grade C-, #934 of 1,100 statewide, top 86%, 356 students, 63% FRL).
  • Market conditions: 67 active listings in the ZIP; 2 comparable units currently listed for rent nearby; 1,366 units permitted in Suffolk County in 2024 (216 in 5+ unit buildings).

Forward outlook

  • Local home prices are declining (-3.0%/yr); year-one equity from $5k of loan paydown is wiped out by about $22k of value loss. Plan a longer hold.
  • Suffolk County population projected to shrink 5% by 2050 — rents likely to lag national; underwrite the cash flow, not the appreciation.
  • At projected returns (-3.0% appreciation + 3.0% rent growth), your $203k cash investment doubles in ~4 years — after that, you're playing with house money.

Negotiation context

  • It's been on market 50 days — a 3% lower offer ($703k) is reasonable based on typical stale-listing flexibility.

Risks & watch-outs

  • Watch-outs: built in 1958 — expect roof / HVAC / electrical / plumbing capex.
  • Climate carrying-cost: severe wind risk, 80% chance of damaging wind over 30y; extreme-heat days projected 7→19/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $703,250 (3.0% below list)

Questions for the listing agent

  1. It's been on market 50 days. Have you received any prior offers? Is the seller open to a 3% concession, seller financing, or rate buy-down credit?
  2. Built in 1958 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  3. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  4. Schools are D-rated, which usually means shorter tenancies and higher turnover. Who's the typical renter profile here, and what's been the actual vacancy rate?
  5. 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.
  6. 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.
  7. 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
1.92%
Cap rate
16.73%
Cash-on-cash
37.28%
DSCR
2.66
GRM
4.3

CMA / ARV

ARV (median comp)
$876,594
List price
$725,000
Delta
-17.29%
Verdict
UNDERPRICED
Comps
9 within 1.0 mi
Show comp detail 4 sales within ~0.75 mi
Address Dist Beds/Ba Sqft Sold Price $/sf Match
516 4th St 0.35mi 4/2.5 (-1) 1,840 (+8%) 14mo $1,195,000 $649 50
416 West St 0.46mi 4/1.5 (-1) 1,450 (-15%) 4mo $725,000 $500 46
1605 Washington Ave 0.73mi 4/3.0 (-1) 1,740 (+2%) 6mo $1,295,000 $744 46
336 2nd St 0.57mi 4/2.0 (-1) 1,800 (+6%) 14mo $578,000 $321 44

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
33.2%
Equity multiple
2.40×
Total profit
$284,183
Equity at exit
$108,100
10-year hold
IRR
40.2%
Equity multiple
4.77×
Total profit
$764,695
Equity at exit
$62,685

Cash invested: $203,000 (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 11944

Home prices YoY
-23.7%
Active inventory
67
Price-to-rent
4.3×

Monthly cashflow live

Estimated rent
$13,912 medium interval (Pro) →
Mortgage (P&I)
$3,802
Tax from tax record
$580 /mo · $6,961/yr
Insurance
$302
HOA
$0
Vacancy / Maint / Mgmt
$2,922
Net cashflow
$6,306

Break-even live

Break-even rent $5,929
Max offer price $725,000
Occupancy floor 50%

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
$181,250
Closing costs
$21,750
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 2 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
312 5th Ave Greenport, NY 4.0 2.0 1900 $12,000 $6.32 43d 1 0.37mi
485 Sutton Pl Greenport, NY 4.0 2.5 2026 $20,000 $9.87 43d 1 1.09mi

Listing history 16 events

  1. 2026-06-18
    days on market $725,000 Active 50 DOM
  2. 2026-06-17
    days on market $725,000 Active 49 DOM
  3. 2026-06-16
    days on market $725,000 Active 48 DOM
  4. 2026-06-15
    days on market $725,000 Active 47 DOM
  5. 2026-06-13
    days on market $725,000 Active 45 DOM
  6. 2026-06-12
    days on market $725,000 Active 44 DOM
  7. 2026-06-09
    days on market $725,000 Active 41 DOM
  8. 2026-06-08
    days on market $725,000 Active 40 DOM
  9. 2026-06-07
    days on market $725,000 Active 39 DOM
  10. 2026-06-05
    days on market $725,000 Active 37 DOM
  11. 2026-06-04
    days on market $725,000 Active 35 DOM
  12. 2026-06-02
    days on market $725,000 Active 34 DOM
  13. 2026-06-01
    days on market $725,000 Active 33 DOM
  14. 2026-05-31
    days on market $725,000 Active 32 DOM
  15. 2026-05-31
    price $725,000 Active 31 DOM
  16. 2026-04-29
    listed $799,000 Active 453-char remark

ⓘ 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
$6,961 · $580/mo
Projected year-2 tax
$9,607 · $801/mo
Expected delta
+$2,646/yr (+$220/mo · 38.0%)

ⓘ 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 5/10 Major 7 d/yr ≥90°F today · 19 d/yr by 30 yrs out
  • 💨 Wind 8/10 Severe 80% chance of damaging wind over 30 yrs
  • 🫁 Air quality 3/10 Moderate 3 unhealthy d/yr today · 4 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
$166,944
− Mortgage interest
−$40,611
− Property taxes
−$6,961
− Insurance
−$3,625
− Repairs & maintenance
−$13,356
− Management
−$13,356
− Depreciation
−$21,091
Taxable income
$67,945
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$16,307
After-tax cash flow
$59,369/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
Greenport Union Free School District
NCES district ID
3612840
Math proficiency
55% ▲ 5.00%
Reading proficiency
45% ▼ -5.00%
Median HH income
$54,490
Composite
45.25/100
National rank
#5759
State rank
#450 of 755 in NY

Livability — Greenport West

Score
58/100
State rank
#1073
US rank
#21520

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Greenport West, NY
Population (ZIP)
4,744

Population outlook (Suffolk County) Hauer SSP2

Today (2025)
1,505,262 people
By 2030
1,498,318 · -0.5%
By 2040
1,471,101 · -2.3%
By 2050
1,424,848 · -5.3%
By 2075
1,337,157 · -11.2%
By 2100
1,217,720 · -19.1%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Predominantly White (69%)
Race & ethnicity
White 69% Hispanic / Latino 23% Two or more races 6% Black 4% Asian 2%
Hispanic origin (detail)
Mexican 5% Puerto Rican 2%
Common ancestry
Romanian 6% Lithuanian 2% Subsaharan African 2%
Foreign-born
19% · Canada, China
Languages at home
69% English-only · Spanish 22% German/W. Germanic 3% Russian/Polish/Slavic 2%

Political lean MEDSL · Suffolk

2024 margin
Lean R (+10.0) · D 45.0% · R 55.0%
2008→2024 swing
-16.0pp toward R · 2008: 6.0pp · 2024: -10.0pp
All cycles
2024: R+10.0 2020: R+0.0 2016: R+8.2 2012: D+2.9 2008: D+6.0

Not yet ingested

Civics

Market trends

HPI YoY
▼ -143.97%
Current HPI
462.3431
Rent YoY
Metro
State GDP YoY
▲ 2.60%
F500 in state
92

Industry mix (Fortune 500 HQ in NY)

Industry F500 HQs Revenue

Price history

-9.3% since first listed
2 events — show timeline
  • 2026-05-30 Price Changed $725,000 OneKey® MLS as Distributed by MLS Grid
  • 2026-04-29 Listed $799,000 OneKey® MLS as Distributed by MLS Grid

Property tax history

+3.8%/yr

Latest (2025): $6,961 · +0.0% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…