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604 Main St
C- Composite 53.89
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 +26.0/30.0
  • DSCR +8.7/10.0
  • 1% rule +5.9/10.0
  • Schools +4.5/10.0
  • Livability +3.8/5.0
  • Rent growth +2.5/5.0
  • Condition / age +2.5/5.0
  • ARV discount +0.0/15.0
  • Appreciation +0.0/10.0

$1,395,000

604 Main St · Greenport, NY 11944
3 bd · 3.5 ba · 2,000 sqft · SingleFamily · 277 Days on market
Built 1890 5,227 sqft lot $698/sqft · 36% above area Est $1027k · 36% over

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

Listing remarks MLS

This c.1890 Greenport Village gem boasts 3 bedrooms, 2.5 baths plus a detached studio apartment. Set in the heart of the historic district, it merges many distinctive original details with thoughtful modern updates. A beautifully planted enclosed rear garden with deck and patio, perfect for relaxing and entertaining, leads to a renovated barn which features a 2-car garage and the spacious studio apartment. The main residence's generous ground floor living spaces include a front parlor and living room with original pocket doors, dining room, powder room, and a large renovated kitchen centered on a 48" Capital gas range. Upstairs there are three bedrooms and two full bathrooms, including one en suite. Refinished original wood floors add warmth and character throughout. The restaurants, shops and waterfront of the maritime village are just a few blocks away from this refined and peaceful retreat.

Key facts

  • Renovated barn
  • Renovated kitchen
  • Deck and patio

Tags

HISTORIC DISTRICTORIGINAL POCKET DOORSRENOVATED KITCHENENCLOSED REAR GARDENDECK AND PATIORENOVATED BARN

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/3.5-bath single-family listed at $1.40M.

Deal economics

  • At list price, monthly cash flow is $3k ($42k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($15k rent vs $1.40M).
  • Recommended offer: $1.23M (12.0% below list) — sets the bar for market timing.

Location & tenants

  • Location reads 76/100 on livability (#217 in NY, #3,399 nationally) — a middle-class / working-renter tenant base. Strengths: crime A+, health & safety A+, commute B+; Watch: housing C-, 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.
  • Market conditions: 69 active listings in the ZIP; 8 comparable units currently listed for rent nearby; rentals lingering (median 45d on market — plan ~5-8 weeks vacancy on turnover, expect pricing pressure); 50% of comp listings sitting > 30 days — soft ceiling on asking rent; 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 $10k of loan paydown is wiped out by about $42k 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.

Negotiation context

  • It's been on market 277 days — a 12% lower offer ($1.23M) is reasonable based on typical stale-listing flexibility.
  • 2 sale attempts; this cycle's ask has dropped $200k (13%) from the opening price — seller is motivated, your offer sets the floor, not the list.
  • Current owner paid $165k; list at $1.40M implies a 745% gain — meaningful room to come down on a strong offer.

Risks & watch-outs

  • Watch-outs: built in 1890 — expect roof / HVAC / electrical / plumbing capex.
  • Climate carrying-cost: severe wind risk, 80% chance of damaging wind over 30y; extreme-heat days projected 7→20/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $1,227,600 (12.0% below list)

Questions for the listing agent

  1. It's been on market 277 days. Have you received any prior offers? Is the seller open to a 12% concession, seller financing, or rate buy-down credit?
  2. Built in 1890 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
  3. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
  4. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  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
1.09%
Cap rate
9.27%
Cash-on-cash
10.64%
DSCR
1.47
GRM
7.7

CMA / ARV

ARV (median comp)
$1,026,591
List price
$1,395,000
Delta
35.89%
Verdict
OVERPRICED
Comps
20 within 1.0 mi
Show comp detail 12 sales within ~0.75 mi
Address Dist Beds/Ba Sqft Sold Price $/sf Match
330 2nd St 0.19mi 2/2.0 (-1) 1,946 (-3%) 6mo $675,000 $347 71
216 North St 0.19mi 3/3.5 1,724 (-14%) 0mo $999,000 $579 68
520 Madison Ave 0.38mi 4/2.5 (+1) 2,000 (0%) 17mo $1,675,000 $838 59
529 2nd St 0.17mi 3/1.5 2,200 (+10%) 10mo $1,100,000 $500 59
1425 Middleton Rd 0.46mi 4/2.0 (+1) 1,968 (-2%) 15mo $672,800 $342 52
525 Landing Ln 0.45mi 4/3.0 (+1) 2,100 (+5%) 14mo $920,000 $438 52
336 2nd St 0.18mi 4/2.0 (+1) 1,800 (-10%) 15mo $578,000 $321 52
516 4th St 0.46mi 4/2.5 (+1) 1,840 (-8%) 14mo $1,195,000 $649 45
239 5th Ave 0.42mi 3/2.0 1,750 (-12%) 15mo $895,000 $511 41
1605 Washington Ave 0.55mi 4/3.0 (+1) 1,740 (-13%) 6mo $1,295,000 $744 40
237 5th Ave 0.43mi 3/1.5 1,700 (-15%) 11mo $1,250,000 $735 38
803 Front St 0.66mi 3/2.0 2,300 (+15%) 1mo $899,000 $391 37

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
-0.4%
Equity multiple
0.98×
Total profit
$-6,028
Equity at exit
$207,999
10-year hold
IRR
9.2%
Equity multiple
1.71×
Total profit
$276,764
Equity at exit
$120,614

Cash invested: $390,600 (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
69
Price-to-rent
7.7×

Monthly cashflow live

Estimated rent
$15,149 medium interval (Pro) →
Mortgage (P&I)
$7,316
Tax from tax record
$609 /mo · $7,310/yr
Insurance
$581
HOA
$0
Vacancy / Maint / Mgmt
$3,181
Net cashflow
$3,462

Break-even live

Break-even rent $10,767
Max offer price $1,395,000
Occupancy floor 72%

Sensitivity live

Price -10% $4,252 -5% $3,857 +0% $3,462 +5% $3,067 +10% $2,672
Rent -10% $2,265 -5% $2,864 +0% $3,462 +5% $4,060 +10% $4,659
Rate -1.0pp $4,164 -0.5pp $3,817 base $3,462 +0.5pp $3,100 +1.0pp $2,733

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
$348,750
Closing costs
$41,850
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 8 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
123 Sterling Ave #2 Greenport, NY 3.0 3.0 1528 $45,000 $29.45 45d 1 0.15mi
312 5th Ave Greenport, NY 4.0 2.0 1900 $12,000 $6.32 45d 1 0.36mi
485 Sutton Pl Greenport, NY 4.0 2.5 2026 $20,000 $9.87 45d 1 0.74mi
237 6th St Greenport, NY 2.0 2.5 1452 $14,000 $9.64 13d 1 0.78mi
134 6th St Greenport, NY 3.0 2.0 1560 $18,500 $11.86 20d 1 0.92mi
131 6th St Unit G Greenport, NY 3.0 2.5 2238 $5,000 $2.23 26d 1 0.96mi
64230 North Rd Greenport, NY 4.0 3.0 2800 $6,500 $2.32 45d 1 1.13mi
1110 Gillette Dr East Marion, NY 4.0 2.0 1500 $7,000 $4.67 20d 1 1.27mi

Listing history 7 events

  1. 2026-05-08
    status Pending 915-char remark
    Show marketing remark (915 chars)

    This c.1890 Greenport Village gem boasts 3 bedrooms, 2.5 baths plus a detached studio apartment. Set in the heart of the historic district, it merges many distinctive original details with thoughtful modern updates. A beautifully planted enclosed rear garden with deck and patio, perfect for relaxing and entertaining, leads to a renovated barn which features a 2-car garage and the spacious studio apartment. The main residence's generous ground floor living spaces include a front parlor and living room with original pocket doors, dining room, powder room, and a large renovated kitchen centered on a 48" Capital gas range. Upstairs there are three bedrooms and two full bathrooms, including one en suite. Refinished original wood floors add warmth and character throughout. The restaurants, shops and waterfront of the maritime village are just a few blocks away from this refined and peaceful retreat.

  2. 2026-03-13
    price $1,395,000 915-char remark
    Show marketing remark (915 chars)

    This c.1890 Greenport Village gem boasts 3 bedrooms, 2.5 baths plus a detached studio apartment. Set in the heart of the historic district, it merges many distinctive original details with thoughtful modern updates. A beautifully planted enclosed rear garden with deck and patio, perfect for relaxing and entertaining, leads to a renovated barn which features a 2-car garage and the spacious studio apartment. The main residence's generous ground floor living spaces include a front parlor and living room with original pocket doors, dining room, powder room, and a large renovated kitchen centered on a 48" Capital gas range. Upstairs there are three bedrooms and two full bathrooms, including one en suite. Refinished original wood floors add warmth and character throughout. The restaurants, shops and waterfront of the maritime village are just a few blocks away from this refined and peaceful retreat.

  3. 2026-03-13
    status Active 915-char remark
    Show marketing remark (915 chars)

    This c.1890 Greenport Village gem boasts 3 bedrooms, 2.5 baths plus a detached studio apartment. Set in the heart of the historic district, it merges many distinctive original details with thoughtful modern updates. A beautifully planted enclosed rear garden with deck and patio, perfect for relaxing and entertaining, leads to a renovated barn which features a 2-car garage and the spacious studio apartment. The main residence's generous ground floor living spaces include a front parlor and living room with original pocket doors, dining room, powder room, and a large renovated kitchen centered on a 48" Capital gas range. Upstairs there are three bedrooms and two full bathrooms, including one en suite. Refinished original wood floors add warmth and character throughout. The restaurants, shops and waterfront of the maritime village are just a few blocks away from this refined and peaceful retreat.

  4. 2025-07-17
    price $1,495,000 915-char remark
    Show marketing remark (915 chars)

    This c.1890 Greenport Village gem boasts 3 bedrooms, 2.5 baths plus a detached studio apartment. Set in the heart of the historic district, it merges many distinctive original details with thoughtful modern updates. A beautifully planted enclosed rear garden with deck and patio, perfect for relaxing and entertaining, leads to a renovated barn which features a 2-car garage and the spacious studio apartment. The main residence's generous ground floor living spaces include a front parlor and living room with original pocket doors, dining room, powder room, and a large renovated kitchen centered on a 48" Capital gas range. Upstairs there are three bedrooms and two full bathrooms, including one en suite. Refinished original wood floors add warmth and character throughout. The restaurants, shops and waterfront of the maritime village are just a few blocks away from this refined and peaceful retreat.

  5. 2025-05-15
    listed $1,595,000 Active 915-char remark
    Show marketing remark (915 chars)

    This c.1890 Greenport Village gem boasts 3 bedrooms, 2.5 baths plus a detached studio apartment. Set in the heart of the historic district, it merges many distinctive original details with thoughtful modern updates. A beautifully planted enclosed rear garden with deck and patio, perfect for relaxing and entertaining, leads to a renovated barn which features a 2-car garage and the spacious studio apartment. The main residence's generous ground floor living spaces include a front parlor and living room with original pocket doors, dining room, powder room, and a large renovated kitchen centered on a 48" Capital gas range. Upstairs there are three bedrooms and two full bathrooms, including one en suite. Refinished original wood floors add warmth and character throughout. The restaurants, shops and waterfront of the maritime village are just a few blocks away from this refined and peaceful retreat.

  6. 1996-10-15
    soldstatus $165,000
  7. 1993-08-09
    soldstatus $180,000

ⓘ 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
$7,310 · $609/mo
Projected year-2 tax
$15,443 · $1,287/mo
Expected delta
+$8,133/yr (+$678/mo · 111.3%)

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

Climate risk First Street

  • 🌊 Flood 3/10 Moderate FEMA zone X (unshaded) · 12% chance over 30 yrs
  • 🔥 Wildfire 1/10 Low
  • 🌡 Heat 5/10 Major 7 d/yr ≥90°F today · 20 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

Loading sold comps map…

Walkable amenities ~0.75 mi

Loading nearby amenities…

Taxation est. · year 1

Rental income
$181,790
− Mortgage interest
−$78,142
− Property taxes
−$7,310
− Insurance
−$6,975
− Repairs & maintenance
−$14,543
− Management
−$14,543
− Depreciation
−$40,582
Taxable income
$19,695
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$4,727
After-tax cash flow
$36,816/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

Score
76/100
State rank
#217
US rank
#3399

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Greenport, NY
City population
4,744
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

+675.0% since first listed
7 events — show timeline
  • 2026-05-08 Pending OneKey® MLS as Distributed by MLS Grid
  • 2026-03-13 Price Changed $1,395,000 OneKey® MLS as Distributed by MLS Grid
  • 2026-03-13 Relisted OneKey® MLS as Distributed by MLS Grid
  • 2025-07-17 Price Changed $1,495,000 OneKey® MLS as Distributed by MLS Grid
  • 2025-05-15 Listed $1,595,000 OneKey® MLS as Distributed by MLS Grid
  • 1996-10-15 Sold (Public Records) $165,000 Public Records
  • 1993-08-09 Sold (Public Records) $180,000 Public Records

Property tax history

+3.4%/yr

Latest (2025): $7,310 · +0.0% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…