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170 Ocean Lane Dr #310
D+ Composite 49.71
Why this score? — see what drove the D+ 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 +11.6/30.0
  • ARV discount +7.5/15.0
  • Appreciation +6.6/10.0
  • 1% rule +5.5/10.0
  • Rent growth +4.2/5.0
  • Schools +4.2/10.0
  • Livability +4.2/5.0
  • DSCR +3.4/10.0
  • Condition / age +2.5/5.0

$779,000

170 Ocean Lane Dr #310 · Key Biscayne, FL 33149
2 bd · 2.0 ba · 1,335 sqft · Condo public records · 107 Days on market
Built 1981 $1929/mo HOA · 24% of rent

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

Listing remarks

Welcome to this bright and inviting 2-bedroom, 2-bathroom condo in the highly sought-after Ocean Lane Plaza, a resort-style community in the heart of Key Biscayne. This well-appointed residence features bright tile flooring throughout the living areas and a large living and dining room combination with wet bar, creating an open and comfortable space perfect for both relaxing and entertaining. The spacious primary suite includes a walk-in closet and an en-suite bath with a separate shower and soaking tub. The galley-style kitchen offers a convenient breakfast bar, ideal for casual dining. Step out onto the large, covered balcony and enjoy peaceful views of the beautifully landscaped grounds.

Key facts

  • Bright tile flooring
  • Wet bar
  • Walk-in closet

Tags

BRIGHT TILE FLOORINGLARGE LIVING AND DINING ROOMWET BARWALK-IN CLOSETEN-SUITE BATHSEPARATE SHOWER

Property features AI

Finance

  • Financial info: Pets allowed with restrictions (maximum 20 lbs)
  • HOA & community: Monthly association fee includes amenities, common areas, grounds and structure maintenance, parking, pool(s), recreation facilities, sewer, security, trash and water; Association amenities: bike storage, clubhouse, fitness center, barbecue/picnic area, playground, pool, spa/hot tub, elevators

Exterior

  • Parking: Assigned covered attached garage (1 space)
  • Security: Doorman
  • Utilities: Cable available
  • Home design: Attached property; Located on entry level 3; Building has 9 stories; Exterior lighting
  • Construction: Block construction; Resale unit
  • Exterior features: Balcony; Open balcony/patio

Interior

  • Kitchen: Dishwasher; Electric range; Refrigerator
  • Flooring: Carpet
  • Bathrooms: 2 full bathrooms
  • Heating & cooling: Central heating (electric); Central air conditioning (electric)
  • Interior features: Wet bar; Family/dining room; Separate shower; Bar; Walk-in closet(s)

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 2-bed/2.0-bath condo listed at $779k.

Deal economics

  • At list price, monthly cash flow is $-665 ($-8k/yr) — negative.
  • To cash-flow at today's rent, offer at most $662k (15.1% below list).
  • Meets the 1% rule at list price ($8k rent vs $779k).
  • Recommended offer: $662k (15.1% below list) — sets the bar for cash-flow.

Location & tenants

  • Location reads 83/100 on livability (#57 in FL, #1,016 nationally) — a professional / high-income tenant draw. Strengths: crime A+, commute A+, employment A+; Watch: amenities F, cost of living F.
  • Miami-Dade (suburban): math 45% / reading 54% proficiency, ranked #40 of 73 in FL (top 55%) — families likely to look elsewhere, expect single-tenant / working-renter base with shorter leases; 64% free/reduced lunch — lower-income household profile, screen leases tightly.
  • Zoned schools: Key Biscayne K-8 Center (math 75% / reading 77%, grade A, #198 of 2,144 statewide, top 10%, 921 students, 7% FRL); Ponce De Leon Middle School (math 36% / reading 55%, grade D+, #305 of 571 statewide, top 54%, 888 students, 60% FRL); Coral Gables Senior High School (math 31% / reading 53%, grade F, #275 of 667 statewide, top 42%, 2,824 students, 52% FRL) — zoned schools average 40% FRL vs 64% district-wide (24 pts lower); this property's tenant base skews higher-income than the district average.
  • Market conditions: Rents rising fast (+7.0%/yr); 205 active listings in the ZIP; 40 comparable units currently listed for rent nearby; rentals at typical pace (median 24d on market — plan ~3-4 weeks tenant-placement turnaround); high-income renter base; 10,051 units permitted in Miami-Dade County in 2024 (7,758 in 5+ unit buildings).
  • At $8,205/mo this rent would consume 54% of the median local household income ($182k/yr) (locally 520% 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 $30k of equity ($5k loan paydown + $24k appreciation (3.1% local appreciation)).
  • Miami-Dade County population projected at +28% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
  • By year 2, paydown + projected appreciation supports a ~$48k cash-out refi (75% LTV) — recoverable capital for the next deal without selling this one.

Negotiation context

  • It's been on market 107 days — a 9% lower offer ($709k) is reasonable based on typical stale-listing flexibility.
  • Current owner paid $220k; list at $779k implies a 254% gain — meaningful room to come down on a strong offer.

Risks & watch-outs

  • Watch-outs: flood insurance adds $427/mo; HOA is 24% of rent.
  • Climate carrying-cost: in FEMA flood zone AE (mandatory federal flood insurance); severe wind risk, 99% chance of damaging wind over 30y; extreme-heat days projected 7→28/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $661,568 (15.1% below list)

Questions for the listing agent

  1. What do current leases actually rent for vs. the listed asking? Can we see a recent rent roll and the last 12 months of T-12 income?
  2. It's been on market 107 days. Have you received any prior offers? Is the seller open to a 15% concession, seller financing, or rate buy-down credit?
  3. What's the actual annual flood-insurance premium (NFIP or private), and is the property in a SFHA with mandatory coverage?
  4. What does the HOA fee cover, when was the last increase, and are there any pending special assessments or reserve-fund shortfalls?
  5. 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?
  6. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
  7. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
  8. 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?
  9. The area grade is low — what's the realistic commute time and amenity access for the typical tenant pool here? Any planned neighborhood developments (good or bad) we should know about?
  10. 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.
  11. 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.
  12. 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
5.93%
Cash-on-cash
-1.31%
DSCR
0.94
GRM
7.9

CMA / ARV

No comps found within radius.

Projected returns pro-forma

3.13% appreciation · 6.96% rent growth · sell at horizon

5-year hold
IRR
7.1%
Equity multiple
1.42×
Total profit
$92,190
Equity at exit
$356,109
10-year hold
IRR
12.3%
Equity multiple
3.03×
Total profit
$442,485
Equity at exit
$553,388

Cash invested: $218,120 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

Overall (STATE)
87 Strongly Landlord-Friendly
State Florida
87 Strongly Landlord-Friendly · R+3
County
— inherits STATE
City
— inherits STATE
3-day pay-or-quit; preempts local rent control; landlord-friendly statutes. Court speed varies by county.

ZIP-level market 33149

Home prices YoY
1.0%
Rents YoY
7.0%
Active inventory
205
Price-to-rent
7.9×

Monthly cashflow live

Estimated rent
$8,205 high interval (Pro) →
Mortgage (P&I)
$4,085
Tax from tax record
$381 /mo · $4,577/yr
Insurance
$325
Flood insurance flood zone
−$427 /mo · $5,118/yr
HOA
$1,929
Vacancy / Maint / Mgmt
$1,723
Net cashflow
$-665

Break-even live

Break-even rent $9,046
Max offer price $661,568
Occupancy floor

Sensitivity live

Price -10% $-224 -5% $-444 +0% $-665 +5% $-885 +10% $-1,106
Rent -10% $-1,313 -5% $-989 +0% $-665 +5% $-341 +10% $-17
Rate -1.0pp $-272 -0.5pp $-467 base $-665 +0.5pp $-867 +1.0pp $-1,072

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
$194,750
Closing costs
$23,370
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 40 comps

AddressBedsBaths SqftRent$/sqft DOM Units Dist
251 Crandon Blvd #1105 Key Biscayne, FL 2.0 2.0 1368 $7,900 $5.77 26d 1 0.10mi
251 Crandon Blvd #1228 Key Biscayne, FL 2.0 2.0 1532 $8,000 $5.22 26d 1 0.10mi
251 Crandon Blvd #133 Key Biscayne, FL 2.0 2.0 1537 $8,200 $5.34 4d 1 0.10mi
251 Crandon Blvd #202 Key Biscayne, FL 2.0 2.0 1464 $6,900 $4.71 26d 1 0.10mi
251 Crandon Blvd #306 Key Biscayne, FL 2.0 2.0 1546 $11,000 $7.12 5d 1 0.10mi
251 Crandon Blvd #322 Key Biscayne, FL 2.0 2.0 1546 $7,200 $4.66 3d 1 0.10mi
251 Crandon Blvd #338 Key Biscayne, FL 2.0 2.0 1546 $6,500 $4.20 9d 1 0.10mi
251 Crandon Blvd #306 Key Biscayne, FL 2.0 2.0 1546 $11,000 $7.12 26d 1 0.10mi
251 Crandon Blvd #139 Key Biscayne, FL 3.0 2.0 1546 $12,000 $7.76 26d 1 0.10mi
181 Crandon Blvd Key Biscayne, FL 3.0 2.0–2.5 1710 $7,900 $4.62 5d 2 0.11mi
181 Crandon Blvd #306 Key Biscayne, FL 3.0 2.0 1600 $8,000 $5.00 26d 1 0.11mi
50 Ocean Lane Dr #603 Key Biscayne, FL 3.0 2.5 1730 $10,800 $6.24 26d 1 0.13mi
101 Crandon Blvd Key Biscayne, FL 2.0–3.0 2.0 1660 $3,000 $1.81 0d 4 0.14mi
121 Crandon Blvd Key Biscayne, FL 3.0 2.0–3.0 1725 $6,375 $3.70 7d 2 0.14mi
77 Crandon Blvd Unit 2E Key Biscayne, FL 2.0 2.0 1123 $4,500 $4.01 26d 1 0.19mi
201 Crandon Blvd #507 Key Biscayne, FL 3.0 2.0 1541 $8,900 $5.78 26d 1 0.20mi
201 Crandon Blvd #343 Key Biscayne, FL 2.0 2.0 1541 $7,600 $4.93 24d 1 0.20mi
201 Crandon Blvd #138 Key Biscayne, FL 2.0 3.0 1541 $12,000 $7.79 26d 1 0.20mi
201 Crandon Blvd #505 Key Biscayne, FL 1.0 1.5 1059 $5,000 $4.72 26d 1 0.20mi
201 Crandon Blvd #207 Key Biscayne, FL 2.0 2.0 1541 $5,250 $3.41 26d 1 0.20mi
201 Crandon Blvd #833 Key Biscayne, FL 2.0 2.0 1541 $9,500 $6.16 3d 1 0.20mi
201 Crandon Blvd #138 Key Biscayne, FL 2.0 3.0 1541 $12,000 $7.79 5d 1 0.20mi
201 Crandon Blvd #120 Key Biscayne, FL 1.0 2.0 1009 $3,795 $3.76 26d 1 0.20mi
201 Crandon Blvd #833 Key Biscayne, FL 2.0 2.0 1541 $9,500 $6.16 4d 1 0.20mi
201 Crandon Blvd #1027 Key Biscayne, FL 2.0 2.0 1531 $9,500 $6.21 9d 1 0.20mi
201 Crandon Blvd #928 Key Biscayne, FL 2.0 2.0 1541 $6,100 $3.96 26d 1 0.20mi
201 Crandon Blvd #1027 Key Biscayne, FL 2.0 2.0 1531 $9,500 $6.21 22d 1 0.20mi
151 Crandon Blvd #444 Key Biscayne, FL 2.0 2.0 1684 $9,200 $5.46 26d 1 0.21mi
151 Crandon Blvd #441 Key Biscayne, FL 2.0 2.0 1532 $6,500 $4.24 24d 1 0.21mi
151 Crandon Blvd #1036 Key Biscayne, FL 2.0 2.0 1532 $7,000 $4.57 26d 1 0.21mi
151 Crandon Blvd #405 Key Biscayne, FL 2.0 2.0 1821 $7,800 $4.28 5d 1 0.21mi
151 Crandon Blvd #120 Key Biscayne, FL 2.0 2.0 1454 $6,000 $4.13 26d 1 0.21mi
151 Crandon Blvd #405 Key Biscayne, FL 2.0 2.0 1821 $7,800 $4.28 18d 1 0.21mi
151 Crandon Blvd #1036 Key Biscayne, FL 2.0 2.0 1532 $7,000 $4.57 5d 1 0.21mi
360 Ocean Dr Unit 905S Key Biscayne, FL 2.0 2.5 1703 $20,000 $11.74 26d 1 0.31mi
360 Ocean Dr Unit 905S Key Biscayne, FL 2.0 2.5 1703 $20,000 $11.74 5d 1 0.31mi
350 Ocean Dr Unit 1105N Key Biscayne, FL 2.0 3.5 1727 $25,000 $14.48 26d 1 0.32mi
350 Ocean Dr Unit 1105N Key Biscayne, FL 2.0 3.5 1727 $23,500 $13.61 0d 1 0.32mi
350 Ocean Dr Unit 305N Key Biscayne, FL 2.0 3.5 1542 $18,000 $11.67 0d 1 0.32mi
255 Galen Dr Unit 3D Key Biscayne, FL 2.0 2.0 1036 $4,450 $4.30 15d 1 0.54mi

HOA detail condo

Monthly dues
$1,929 · $23,148/yr
Likely covers
landscaping
Assessments
None detected in remarks — confirm with the listing agent.

Listing history 18 events

  1. 2026-06-21
    days on market $779,000 Active 107 DOM
  2. 2026-06-18
    days on market $779,000 Active 104 DOM
  3. 2026-06-17
    days on market $779,000 Active 103 DOM
  4. 2026-06-16
    days on market $779,000 Active 102 DOM
  5. 2026-06-15
    days on market $779,000 Active 101 DOM
  6. 2026-06-13
    days on market $779,000 Active 99 DOM
  7. 2026-06-09
    days on market $779,000 Active 95 DOM
  8. 2026-06-08
    days on market $779,000 Active 94 DOM
  9. 2026-06-07
    days on market $779,000 Active 93 DOM
  10. 2026-06-04
    days on market $779,000 Active 90 DOM
  11. 2026-06-03
    days on market $779,000 Active 89 DOM
  12. 2026-06-02
    days on market $779,000 Active 88 DOM
  13. 2026-06-01
    days on market $779,000 Active 87 DOM
  14. 2026-05-31
    days on market $779,000 Active 86 DOM
  15. 2026-05-06
    price $779,000
  16. 2026-03-05
    listed $799,000 Active
  17. 2000-09-07
    soldstatus $220,000
  18. 1994-09-21
    soldstatus $185,000

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

Tax reassessment forecast FL · Resets to sale price

Current annual tax
$4,577 · $381/mo
Projected year-2 tax
$6,466 · $539/mo
Expected delta
+$1,889/yr (+$157/mo · 41.3%)

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

Climate risk First Street

  • 🌊 Flood 9/10 Extreme FEMA zone AE · 99% chance over 30 yrs
  • 🔥 Wildfire 1/10 Low
  • 🌡 Heat 10/10 Extreme 7 d/yr ≥102°F today · 28 d/yr by 30 yrs out
  • 💨 Wind 10/10 Extreme 99% chance of damaging wind over 30 yrs
  • 🫁 Air quality 2/10 Low 1 unhealthy d/yr today · 1 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
$98,460
− Mortgage interest
−$43,636
− Property taxes
−$4,577
− Insurance
−$9,014
− Repairs & maintenance
−$7,877
− Management
−$7,877
− HOA
−$23,148
− Depreciation
−$22,662
Taxable loss
−$20,330
combined federal + state — saved on this device
Est. tax savings @ 24.0%
+$4,879
After-tax cash flow
$-3,098/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
Miami-Dade
NCES district ID
1200390
Math proficiency
45% ▼ -16.00%
Reading proficiency
54% ▼ -5.00%
Median HH income
$43,928
Composite
41.76/100
National rank
#3397
State rank
#40 of 73 in FL

Livability — Key Biscayne

Score
83/100
State rank
#57
US rank
#1016

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Key Biscayne, FL
County
Miami-Dade County · 2,697,751 people
City population
14,791
Metro
Miami-Fort Lauderdale-Pompano Beach, FL
Population (ZIP)
14,791
Household income
$181,505
Rent vs Own
33.4% rent · 66.6% own
Severe rent burden
520.0

Population outlook (Miami-Dade County) Hauer SSP2

Today (2025)
3,126,439 people
By 2030
3,325,765 · +6.4%
By 2040
3,697,561 · +18.3%
By 2050
4,012,134 · +28.3%
By 2075
4,605,612 · +47.3%
By 2100
4,866,598 · +55.7%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Predominantly Hispanic (73%)
Race & ethnicity
Hispanic / Latino 73% Two or more races 51% White 23%
Hispanic origin (detail)
Mexican 9% Puerto Rican 2% Cuban 9% Salvadoran 11%
Common ancestry
Estonian 4% Russian 2% Italian 2%
Foreign-born
59% · Canada, Dominican Republic, Jamaica
Languages at home
17% English-only · Spanish 72% Other Indo-European 7% French/Haitian/Cajun 1%

Political lean MEDSL · Miami-Dade

2024 margin
R (+11.4) · D 43.9% · R 55.4%
2008→2024 swing
-27.6pp toward R · 2008: 16.1pp · 2024: -11.4pp
All cycles
2024: R+11.4 2020: D+7.3 2016: D+29.6 2012: D+23.7 2008: D+16.1

Not yet ingested

Civics

Market trends

HPI YoY
▲ 3.13%
Current HPI
314.6175
Rent YoY
▲ 6.96%
Metro
Miami-Fort Lauderdale-Pompano Beach, FL
State GDP YoY
▲ 3.28%
F500 in state
36

Industry mix (Fortune 500 HQ in FL)

Industry F500 HQs Revenue

Price history

+321.1% since first listed
4 events — show timeline
  • 2026-05-06 Price Changed $779,000 MARMLS
  • 2026-03-05 Listed $799,000 MARMLS
  • 2000-09-07 Sold (Public Records) $220,000 Public Records
  • 1994-09-21 Sold (Public Records) $185,000 Public Records

Property tax history

+1.6%/yr

Latest (2025): $4,577 · +2.7% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…