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231 Dune Rd #905
B Composite 74.79
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
  • 1% rule +10.0/10.0
  • DSCR +10.0/10.0
  • Appreciation +10.0/10.0
  • Schools +6.6/10.0
  • Livability +3.2/5.0
  • Rent growth +2.5/5.0
  • Condition / age +2.5/5.0
  • ARV discount +0.0/15.0

$729,000

231 Dune Rd #905 · Westhampton Beach, NY 11978
1 bd · 1.0 ba · 500 sqft · Condo · 277 Days on market
Built 1987 $1458/sqft · 44% above area Est $507k · 44% over

🖨 Deal sheet 📄 Offer letter ✓ Due diligence

Listing remarks MLS

Discover this beautifully renovated waterfront co-op in the exclusive, private section building of The Ocean Resort at Bath & Tennis, the only full-service resort marina in Westhampton Beach. This chic, cozy, double unit with Living room, loft, cathedral ceiling with skylight, gallery kitchen, bedroom, and bathroom. Amenities of complex included for up to 10. This is an excellent investment opportunity for ownership/rental possibilities! **Resort Highlights:** - Private Beach Access: Enjoy 500 feet of pristine ocean beach with attentive staff providing towels, chairs, and umbrellas. - Saltwater Pools: Relax by the 30x75 heated T-shaped pool (3'-10' deep) complete with a poolside bar. - Marina Facilities: 51 slips for seasonal or transient docking, with jet boat and jet ski ramps, operating from May 1 to October 15. - Recreation & Wellness: Five tennis courts, a state-of-the-art gym, and a spa/salon for ultimate relaxation. - Dining & Convenience: On-site restaurant and tiki snack bar, plus a business center with computer, printer, copier, & fax services. Wi-Fi throughout the resort. - Additional Services: Self-service laundry, optional laundry and housekeeping services, and a complimentary shuttle to Westhampton Beach Village. - Event & Parking Options: Perfect for special events and meetings, with parking and valet services for guests. Located steps from Main Street and nestled along Dune Road, this large resort offers the ultimate blend of luxury and convenience. Don’t miss your chance to own a piece of this premier waterfront destination!

Key facts

  • Waterfront co-op
  • Saltwater pools
  • Tennis courts

Tags

WATERFRONT CO-OPPRIVATE BEACH ACCESSSALTWATER POOLSMARINA FACILITIESTENNIS COURTSSTATE-OF-THE-ART GYM

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 1-bed/1.0-bath condo listed at $729k.

Deal economics

  • At list price, monthly cash flow is $3k ($37k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($13k rent vs $729k).
  • Recommended offer: $642k (12.0% below list) — sets the bar for market timing.
  • Cap rate 11.5% vs local median 9.3% in Westhampton Beach — meaningfully above typical; check what's discounted (condition, days-on-market, listing class) to confirm the premium yield is real.

Location & tenants

  • Location reads 64/100 on livability (#740 in NY) — a middle-class / working-renter tenant base. Strengths: crime A+, employment A+, schools A; Watch: amenities F, commute F, cost of living F.
  • Westhampton Beach Union Free School District (suburban): math 72% / reading 75% proficiency, ranked #81 of 590 in NY (top 14%) — strong family-tenant draw, lease renewals of 3-5y typical.
  • Market conditions: 112 active listings in the ZIP; 5 comparable units currently listed for rent nearby; rentals at typical pace (median 19d on market — plan ~3-4 weeks tenant-placement turnaround); high-income renter base; 1,366 units permitted in Suffolk County in 2024 (216 in 5+ unit buildings).
  • At $12,745/mo this rent would consume 122% of the median local household income ($125k/yr) (locally 43% of renters already pay >50% of income on rent) — very limited rent-growth headroom before tenants either downsize or default.

Forward outlook

  • In year one you build about $78k of equity ($5k loan paydown + $73k appreciation (10.0% local appreciation)).
  • Suffolk County population projected to shrink 5% by 2050 — rents likely to lag national; underwrite the cash flow, not the appreciation.
  • At projected returns (10.0% appreciation + 3.0% rent growth), your $204k cash investment doubles in ~2 years — after that, you're playing with house money.
  • By year 2, paydown + projected appreciation supports a ~$125k cash-out refi (75% LTV) — recoverable capital for the next deal without selling this one.

Negotiation context

  • It's been on market 277 days — a 12% lower offer ($642k) is reasonable based on typical stale-listing flexibility.
  • 2 sale attempts since 10y ago 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: flood insurance adds $66/mo.
  • Climate carrying-cost: major flood risk; severe wind risk, 80% chance of damaging wind over 30y — expect insurance premiums to compound above CPI over the hold.
Recommended offer $641,520 (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. What's the actual annual flood-insurance premium (NFIP or private), and is the property in a SFHA with mandatory coverage?
  3. What does the HOA fee cover, when was the last increase, and are there any pending special assessments or reserve-fund shortfalls?
  4. Any open or pending special assessments — roof, HVAC, plumbing, elevator, façade? What's the per-unit balance and payoff schedule, and is the seller paying it off at close or rolling it to the buyer?
  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 A-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. 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
1.75%
Cap rate
11.53%
Cash-on-cash
18.71%
DSCR
1.83
GRM
4.8

CMA / ARV

ARV (median comp)
$506,617
List price
$729,000
Delta
43.90%
Verdict
OVERPRICED
Comps
5 within 1.0 mi

Projected returns pro-forma

10.0% appreciation · 3.0% rent growth · sell at horizon

5-year hold
IRR
38.0%
Equity multiple
3.92×
Total profit
$596,882
Equity at exit
$656,741
10-year hold
IRR
32.7%
Equity multiple
8.86×
Total profit
$1,604,357
Equity at exit
$1,416,287

Cash invested: $204,120 (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 11978

Home prices YoY
2.9%
Active inventory
112
Price-to-rent
4.8×

Monthly cashflow live

Estimated rent
$12,745 medium interval (Pro) →
Mortgage (P&I)
$3,823
Tax est. 1.5%
$911 /mo · $10,935/yr
Insurance
$304
Flood insurance flood zone
−$66 /mo · $798/yr
HOA est. from 1 same-building comp
$1,848
Vacancy / Maint / Mgmt
$2,677
Net cashflow
$3,116

Break-even live

Break-even rent $8,801
Max offer price $729,000
Occupancy floor 71%

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
$182,250
Closing costs
$21,870
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
260 Dune Rd Westhampton Beach, NY 2.0 2.0 550 $26,000 $47.27 7d 2 0.26mi
274 Dune Rd Unit 9 Westhampton Beach, NY 1.0 1.0 506 $10,500 $20.75 21d 1 0.35mi
274 Dune Rd #19 Westhampton Beach, NY 1.0 1.0 684 $12,000 $17.54 10d 1 0.35mi
274 Dune Rd #6 Westhampton Beach, NY 1.0 1.0 565 $5,000 $8.85 43d 1 0.36mi
424 Main St Westhampton Beach, NY 2.0 1.0 632 $10,000 $15.82 18d 1 1.44mi

HOA detail condo

Monthly dues
$0 · $0/yr
Likely covers
waterinternetpoolgym
Assessments
None detected in remarks — confirm with the listing agent.

Listing history 17 events

  1. 2026-06-18
    days on market $729,000 Active 277 DOM
  2. 2026-06-17
    days on market $729,000 Active 276 DOM
  3. 2026-06-16
    days on market $729,000 Active 275 DOM
  4. 2026-06-15
    days on market $729,000 Active 274 DOM
  5. 2026-06-13
    days on market $729,000 Active 272 DOM
  6. 2026-06-09
    days on market $729,000 Active 268 DOM
  7. 2026-06-08
    days on market $729,000 Active 267 DOM
  8. 2026-06-07
    days on market $729,000 Active 266 DOM
  9. 2026-06-04
    days on market $729,000 Active 263 DOM
  10. 2026-06-03
    days on market $729,000 Active 262 DOM
  11. 2026-06-02
    days on market $729,000 Active 261 DOM
  12. 2026-06-01
    days on market $729,000 Active 260 DOM
  13. 2026-05-31
    days on market $729,000 Active 259 DOM
  14. 2026-01-15
    price $729,000 1597-char remark
    Show marketing remark (1597 chars)

    Discover this beautifully renovated waterfront co-op in the exclusive, private section building of The Ocean Resort at Bath & Tennis, the only full-service resort marina in Westhampton Beach. This chic, cozy, double unit with Living room, loft, cathedral ceiling with skylight, gallery kitchen, bedroom, and bathroom. Amenities of complex included for up to 10. This is an excellent investment opportunity for ownership/rental possibilities! **Resort Highlights:** - Private Beach Access: Enjoy 500 feet of pristine ocean beach with attentive staff providing towels, chairs, and umbrellas. - Saltwater Pools: Relax by the 30x75 heated T-shaped pool (3'-10' deep) complete with a poolside bar. - Marina Facilities: 51 slips for seasonal or transient docking, with jet boat and jet ski ramps, operating from May 1 to October 15. - Recreation & Wellness: Five tennis courts, a state-of-the-art gym, and a spa/salon for ultimate relaxation. - Dining & Convenience: On-site restaurant and tiki snack bar, plus a business center with computer, printer, copier, & fax services. Wi-Fi throughout the resort. - Additional Services: Self-service laundry, optional laundry and housekeeping services, and a complimentary shuttle to Westhampton Beach Village. - Event & Parking Options: Perfect for special events and meetings, with parking and valet services for guests. Located steps from Main Street and nestled along Dune Road, this large resort offers the ultimate blend of luxury and convenience. Don’t miss your chance to own a piece of this premier waterfront destination!

  15. 2025-09-14
    listed $749,000 Active 1597-char remark
    Show marketing remark (1597 chars)

    Discover this beautifully renovated waterfront co-op in the exclusive, private section building of The Ocean Resort at Bath & Tennis, the only full-service resort marina in Westhampton Beach. This chic, cozy, double unit with Living room, loft, cathedral ceiling with skylight, gallery kitchen, bedroom, and bathroom. Amenities of complex included for up to 10. This is an excellent investment opportunity for ownership/rental possibilities! **Resort Highlights:** - Private Beach Access: Enjoy 500 feet of pristine ocean beach with attentive staff providing towels, chairs, and umbrellas. - Saltwater Pools: Relax by the 30x75 heated T-shaped pool (3'-10' deep) complete with a poolside bar. - Marina Facilities: 51 slips for seasonal or transient docking, with jet boat and jet ski ramps, operating from May 1 to October 15. - Recreation & Wellness: Five tennis courts, a state-of-the-art gym, and a spa/salon for ultimate relaxation. - Dining & Convenience: On-site restaurant and tiki snack bar, plus a business center with computer, printer, copier, & fax services. Wi-Fi throughout the resort. - Additional Services: Self-service laundry, optional laundry and housekeeping services, and a complimentary shuttle to Westhampton Beach Village. - Event & Parking Options: Perfect for special events and meetings, with parking and valet services for guests. Located steps from Main Street and nestled along Dune Road, this large resort offers the ultimate blend of luxury and convenience. Don’t miss your chance to own a piece of this premier waterfront destination!

  16. 2017-03-01
    historical
  17. 2016-08-15
    listed $429,000 New

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

Climate risk First Street

  • 🌊 Flood 7/10 Severe FEMA zone X (unshaded) · 59% chance over 30 yrs
  • 🔥 Wildfire 1/10 Low
  • 🌡 Heat 4/10 Moderate 8 d/yr ≥90°F today · 22 d/yr by 30 yrs out
  • 💨 Wind 8/10 Severe 80% chance of damaging wind over 30 yrs
  • 🫁 Air quality 2/10 Low 2 unhealthy d/yr today · 2 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
$152,943
− Mortgage interest
−$40,835
− Property taxes
−$10,935
− Insurance
−$4,442
− Repairs & maintenance
−$12,235
− Management
−$12,235
− HOA
−$22,176
− Depreciation
−$21,207
Taxable income
$28,876
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$6,930
After-tax cash flow
$30,466/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
Westhampton Beach Union Free School District
NCES district ID
3631020
Math proficiency
72% ▼ -5.00%
Reading proficiency
75% ▲ 3.00%
Median HH income
$88,137
Composite
65.91/100
National rank
#444
State rank
#81 of 590 in NY

Livability — Westhampton Beach

Score
64/100
State rank
#740
US rank
#14093

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
Westhampton Beach, NY
County
Suffolk County · 679,920 people
City population
4,705
Metro
New York-Newark-Jersey City, NY-NJ-PA
Population (ZIP)
4,705
Household income
$125,179
Rent vs Own
11.8% rent · 88.2% own
Severe rent burden
43.0

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 (72%)
Race & ethnicity
White 72% Two or more races 14% Hispanic / Latino 11% Black 6% Asian 2%
Hispanic origin (detail)
Puerto Rican 1%
Common ancestry
Romanian 7% Scotch-Irish 2% Italian 2%
Foreign-born
14% · Canada, Jamaica, China
Languages at home
84% English-only · Spanish 10% Other Indo-European 2% Russian/Polish/Slavic 1%

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
▲ 13.02%
Current HPI
460.3964
Rent YoY
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

+69.9% since first listed
4 events — show timeline
  • 2026-01-15 Price Changed $729,000 OneKey® MLS as Distributed by MLS Grid
  • 2025-09-14 Listed $749,000 OneKey® MLS as Distributed by MLS Grid
  • 2017-03-01 Listing Removed OneKey® MLS as Distributed by MLS Grid
  • 2016-08-15 Listed $429,000 OneKey® MLS as Distributed by MLS Grid

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…