23 Lakewood Ave · Lake Ronkonkoma, NY
Flood risk 1/10 · Minimal
- FEMA flood zone
- X (unshaded)
- Chance of flooding over 30 yrs
- 0.0%
- Est. flood insurance / yr
- $473 – $860
Fire risk 1/10 · Minimal
- Est. fire insurance / yr
- $691 – $1,283
Heat risk 5/10 · Moderate
- Hot days now (above 93°F)
- 7 days/yr
- Hot days in 30 yrs
- 17 days/yr
Wind risk 6/10 · Moderate
- Chance of severe wind over 30 yrs
- 77.0%
Air-quality risk 4/10 · Minor
- Unhealthy air days now
- 4 days/yr
- Unhealthy air days in 30 yrs
- 6 days/yr
Risk factors via First Street. Map © Google.
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).
- ARV discount +15.0/15.0
- Cash flow +13.7/30.0
- Schools +6.6/10.0
- DSCR +4.1/10.0
- Livability +3.9/5.0
- 1% rule +3.3/10.0
- Rent growth +2.7/5.0
- Condition / age +2.5/5.0
- Appreciation +0.0/10.0
$539,000
🖨 Deal sheet 📄 Offer letter ✓ Due diligence
Listing remarks MLS
This classic four-bedroom, two-full-bath Cape Cod is perfectly situated on a corner lot. It boasts a newer roof, gas furnace, and gleaming hardwood floors throughout. The spacious sunroom offers an abundance of natural light, creating a serene retreat. Located just minutes from the Long Island Railroad, as well as convenient shopping and dining options, this home offers both comfort and convenience.
Key facts
- Gas furnace
- Newer roof
- Natural light
Tags
Neighborhood map
What this means for you Summary
Snapshot
- This is a 4-bed/2.0-bath single-family listed at $539k.
Deal economics
- At list price, monthly cash flow is $42 ($505/yr) — positive.
- The deal already cash-flows at list — no discount required.
- To meet the 1% rule (rent ≥ 1% of price), the offer needs to be $447k (17.0% below list).
- Recommended offer: $447k (17.0% below list) — sets the bar for 1% rule.
- Cap rate 6.4% vs local median 4.0% in Lake Ronkonkoma — 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 78/100 on livability (#169 in NY, #2,606 nationally) — a middle-class / working-renter tenant base. Strengths: employment A+, housing A+, schools B+; Watch: amenities D-, cost of living F.
- Sachem Central School District (suburban): math 69% / reading 76% proficiency, ranked #86 of 590 in NY (top 15%) — strong family-tenant draw, lease renewals of 3-5y typical; only 15% free/reduced lunch — higher-income household profile.
- Market conditions: Rents flat; 173 active listings in the ZIP; 3 comparable units currently listed for rent nearby; rentals at typical pace (median 25d 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 $4,472/mo this rent would consume 48% of the median local household income ($112k/yr) (locally 874% 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 $4k of loan paydown is wiped out by about $16k 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 23 days — a 2% lower offer ($531k) is reasonable based on typical stale-listing flexibility.
Risks & watch-outs
- Watch-outs: built in 1954 — expect roof / HVAC / electrical / plumbing capex.
- Climate carrying-cost: major wind risk, 77% chance of damaging wind over 30y; extreme-heat days projected 7→17/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Questions for the listing agent
- Built in 1954 — when were the roof, HVAC, electrical panel, plumbing, and water heater last replaced?
- Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
- 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?
- 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.
- 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.
- 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
- 0.83% ✗
- Cap rate
- 6.39%
- Cash-on-cash
- 0.33%
- DSCR
- 1.01
- GRM
- 10.0
CMA / ARV
- ARV (median comp)
- $700,486
- List price
- $539,000
- Delta
- -23.05%
- Verdict
- UNDERPRICED
- Comps
- 20 within 1.0 mi
Show comp detail 12 sales within ~0.75 mi
| Address | Dist | Beds/Ba | Sqft | Sold | Price | $/sf | Match |
|---|---|---|---|---|---|---|---|
| 22 10th St | 0.28mi | 3/2.0 (-1) | 1,800 (-1%) | 11mo | $685,000 | $381 | 71 |
| 12 Bay Ave | 0.32mi | 4/2.0 | 1,728 (-5%) | 9mo | $610,000 | $353 | 69 |
| 12 Wyant Ave | 0.18mi | 4/2.0 | 1,988 (+9%) | 11mo | $615,000 | $309 | 68 |
| 47 2nd St | 0.58mi | 3/2.0 (-1) | 1,858 (+2%) | 0mo | $650,000 | $350 | 64 |
| 35 Lakewood Rd | 0.35mi | 3/2.0 (-1) | 1,800 (-1%) | 16mo | $685,000 | $381 | 63 |
| N/C Caroll Ave | 0.22mi | 5/3.0 (+1) | 2,020 (+11%) | 7mo | $800,000 | $396 | 57 |
| 327 Ronkonkoma Ave | 0.32mi | 4/3.0 | 2,000 (+10%) | 12mo | $999,950 | $500 | 55 |
| 30 Lake Promenade | 0.43mi | 3/2.0 (-1) | 1,954 (+7%) | 10mo | $715,000 | $366 | 54 |
| 38 12th St | 0.35mi | 3/3.0 (-1) | 1,696 (-7%) | 13mo | $700,000 | $413 | 52 |
| 39 & 41 Foster Rd | 0.73mi | 5/3.5 (+1) | 1,800 (-1%) | 4mo | $1,225,000 | $681 | 49 |
| 37 Weichers Ave | 0.70mi | 3/2.0 (-1) | 1,666 (-9%) | 3mo | $695,000 | $417 | 46 |
| 45 Marc St | 0.51mi | 4/2.5 | 2,039 (+12%) | 12mo | $720,000 | $353 | 45 |
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 · 0.79% rent growth · sell at horizon
- IRR
- -18.1%
- Equity multiple
- 0.37×
- Total profit
- $-94,467
- Equity at exit
- $80,367
- IRR
- -15.1%
- Equity multiple
- 0.22×
- Total profit
- $-117,312
- Equity at exit
- $46,603
Cash invested: $150,920 (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
ZIP-level market 11779
- Rents YoY
- 0.8%
- Active inventory
- 173
- Price-to-rent
- 10.0×
Monthly cashflow live
- Estimated rent
- $4,472 medium interval (Pro) →
- Mortgage (P&I)
- −$2,827
- Tax from tax record
- −$439 /mo · $5,272/yr
- Insurance
- −$225
- HOA
- −$0
- Vacancy / Maint / Mgmt
- −$939
- Net cashflow
- $42
Break-even live
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
- $134,750
- Closing costs
- $16,170
- 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 3 comps
| Address | Beds | Baths | Sqft | Rent | $/sqft | DOM | Units | Dist |
|---|---|---|---|---|---|---|---|---|
| 2 Hawkins Ave Lake Ronkonkoma, NY | 3.0 | 1.0–2.0 | 959 | $4,980 | $5.19 | 1d | 129 | 0.51mi |
| 16 Birch Dr Ronkonkoma, NY | 3.0 | 2.0 | 1536 | $4,250 | $2.77 | 24d | 1 | 0.71mi |
| 100 Lake Rd Ronkonkoma, NY | 3.0 | 2.5 | 1800 | $4,500 | $2.50 | 44d | 1 | 0.74mi |
Listing history 2 events
-
2026-05-12status Pending 402-char remark
Show marketing remark (402 chars)
This classic four-bedroom, two-full-bath Cape Cod is perfectly situated on a corner lot. It boasts a newer roof, gas furnace, and gleaming hardwood floors throughout. The spacious sunroom offers an abundance of natural light, creating a serene retreat. Located just minutes from the Long Island Railroad, as well as convenient shopping and dining options, this home offers both comfort and convenience.
-
2026-04-14$539,000 Active 402-char remark
Show marketing remark (402 chars)
This classic four-bedroom, two-full-bath Cape Cod is perfectly situated on a corner lot. It boasts a newer roof, gas furnace, and gleaming hardwood floors throughout. The spacious sunroom offers an abundance of natural light, creating a serene retreat. Located just minutes from the Long Island Railroad, as well as convenient shopping and dining options, this home offers both comfort and convenience.
ⓘ 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
- $5,272 · $439/mo
- Projected year-2 tax
- $7,191 · $599/mo
- Expected delta
- +$1,918/yr (+$160/mo · 36.4%)
ⓘ 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 ≥93°F today · 17 d/yr by 30 yrs out
- Wind 6/10 Major 77% chance of damaging wind over 30 yrs
- Air quality 4/10 Moderate 4 unhealthy d/yr today · 6 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
- $53,660
- − Mortgage interest
- −$30,192
- − Property taxes
- −$5,272
- − Insurance
- −$2,695
- − Repairs & maintenance
- −$4,293
- − Management
- −$4,293
- − Depreciation
- −$15,680
- Taxable loss
- −$8,766
- Est. tax savings @ 24.0%
- +$2,104
- After-tax cash flow
- $2,609/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
- Sachem Central School District
- NCES district ID
- 3625350
- Math proficiency
- 69% ▬ 0.00%
- Reading proficiency
- 76% ▲ 12.00%
- Median HH income
- $92,968
- Composite
- 65.53/100
- National rank
- #472
- State rank
- #86 of 590 in NY
Livability — Lake Ronkonkoma
- Score
- 78/100
- State rank
- #169
- US rank
- #2606
Category grades
Schools grade is shown separately in the Schools card above.
Census & demographics
- Census place
- Lake Ronkonkoma, NY
- County
- Suffolk County · 679,920 people
- City population
- 38,273
- Metro
- New York-Newark-Jersey City, NY-NJ-PA
- Population (ZIP)
- 38,206
- Household income
- $112,180
- Rent vs Own
- Severe rent burden
- 874.0
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 (67%)
- Race & ethnicity
- White 67% Hispanic / Latino 19% Two or more races 9% Asian 7% Black 5%
- Hispanic origin (detail)
- Puerto Rican 7% Dominican 1%
- Common ancestry
- Romanian 4% Scotch-Irish 1% Lithuanian 1%
- Foreign-born
- 14% · Canada, Jamaica, China
- Languages at home
- 79% English-only · Spanish 10% Other Indo-European 7% Other Asian/Pacific 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
- ▼ -569.98%
- Current HPI
- 350.0973
- Rent YoY
- ▲ 0.79%
- 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 |
|---|---|---|
| Financial Services | 10 | $950B |
|
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| Consumer Goods | 9 | $162B |
|
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| Insurance | 4 | $225B |
|
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| Telecommunications | 2 | $144B |
|
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| Pharmaceuticals | 2 | $112B |
|
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| Media / Entertainment | 2 | $69B |
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Price history
2 events — show timeline
- 2026-05-12 Pending — OneKey® MLS as Distributed by MLS Grid
- 2026-04-14 Listed $539,000 OneKey® MLS as Distributed by MLS Grid
Property tax history
-0.1%/yrLatest (2025): $5,272 · +0.0% YoY. Source: county tax records.
Cash-flow waterfall
monthlySold comps — $/sqft
last 12 mo · ≤1 miLoading sold comps…