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18151 NE 31st Ct #505
B- Composite 69.24
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 +20.4/30.0
  • ARV discount +15.0/15.0
  • 1% rule +9.9/10.0
  • DSCR +6.5/10.0
  • Appreciation +5.3/10.0
  • Schools +4.5/10.0
  • Livability +4.0/5.0
  • Rent growth +2.7/5.0
  • Condition / age +1.0/5.0

$210,000

18151 NE 31st Ct #505 · Aventura, FL 33160
1 bd · 1.0 ba · 918 sqft · Condo public records · 164 Days on market
Built 1981 Poor condition Garage $229/sqft · 36% below area Est $326k · 36% under $793/mo HOA · 25% of rent

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

Listing remarks MLS

GREAT OPPORTUNITY FOR A PERFECT LOCATION IN AVENTURA, NEXT TO WILLIAMS ISLAND, CLOSE TO AVENTURA MALL, FRESH MARKET, PUBLIX, APART IN GOOD CONDITION, VERY RELAXING AND PRETTY LAKE VIEW, TWO POOLS BY THE LAKE , GYM, SAUNA,

Key facts

  • Fitness center
  • Large balcony
  • Pool

Tags

INTERCOASTAL-BAY VIEWSFLOOR-TO-CEILING WINDOWSLARGE BALCONYFULL-SERVICE BUILDINGFITNESS CENTERPOOL

Neighborhood map

Property Rental comp Retail Costco Walmart Transit Schools Stadiums Fortune 500 · Circle radius: 6.0 mi
Loading POIs…

What this means for you Summary

Snapshot

  • This is a 1-bed/1.0-bath condo listed at $210k. Condition is rated poor.

Deal economics

  • At list price, monthly cash flow is $274 ($3k/yr) — positive.
  • The deal already cash-flows at list — no discount required.
  • Meets the 1% rule at list price ($3k rent vs $210k).
  • Recommended offer: $185k (12.0% below list) — sets the bar for market timing.
  • Cap rate 7.9% vs local median 2.1% in Aventura — 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 80/100 on livability (#127 in FL, #1,834 nationally) — a professional / high-income tenant draw. Strengths: health & safety A+, amenities A, commute A; Watch: crime D+, 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: Aventura Waterways K-8 Center (math 56% / reading 65%, grade B-, #664 of 2,144 statewide, top 32%, 2,168 students, 32% FRL); Highland Oaks Middle School (math 28% / reading 51%, grade F, #373 of 571 statewide, top 66%, 774 students, 50% FRL); Dr. Michael M. Krop Senior High (math 21% / reading 46%, grade F, #400 of 667 statewide, top 61%, 2,235 students, 49% FRL) — zoned schools average 44% FRL vs 64% district-wide (20 pts lower); this property's tenant base skews higher-income than the district average.
  • Market conditions: Rents flat; 2334 active listings in the ZIP; 10,051 units permitted in Miami-Dade County in 2024 (7,758 in 5+ unit buildings).
  • At $3,127/mo this rent would consume 56% of the median local household income ($67k/yr) (locally 17% 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 $3k of equity ($1k loan paydown + $1k appreciation (0.5% local appreciation)).
  • Miami-Dade County population projected at +28% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.
  • At projected returns (0.5% appreciation + 0.9% rent growth), your $59k cash investment doubles in ~10 years — after that, you're playing with house money.

Negotiation context

  • It's been on market 164 days — a 12% lower offer ($185k) is reasonable based on typical stale-listing flexibility.
  • 6 sale attempts since 5y 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.
  • Current owner paid $170k; 24% above their basis — modest negotiation headroom, anchor on the comps not their cost.

Risks & watch-outs

  • Watch-outs: HOA is 25% of rent.
Recommended offer $184,800 (12.0% below list)

Questions for the listing agent

  1. It's been on market 164 days. Have you received any prior offers? Is the seller open to a 12% concession, seller financing, or rate buy-down credit?
  2. Have any recent inspections been done? Can we get a copy of the seller's disclosures and any deferred-maintenance estimates?
  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. Crime grade is D in this area — have there been break-ins, vandalism, or insurance claims at this property in the last 3 years? What carrier currently insures it and at what premium?
  9. 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.
  10. 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.
  11. 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
1.49%
Cap rate
7.86%
Cash-on-cash
5.58%
DSCR
1.25
GRM
5.6

CMA / ARV

ARV (median comp)
$326,434
List price
$210,000
Delta
-35.67%
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
2999 Point East Dr Unit C-502 0.23mi 1/1.0 816 (-11%) 1mo $180,000 $221 70
3551 NE 169th St Unit 110-A 0.56mi 1/1.0 812 (-12%) 0mo $184,000 $227 54
19380 Collins Ave #707 1.20mi 1/1.5 1,005 (+10%) 1mo $245,000 $244 47
16950 W Dixie Hwy Unit A226 1.36mi 1/1.0 720 (-22%) 0mo $101,000 $140 40
16950 W Dixie Hwy Unit A-529 1.36mi 1/1.0 728 (-21%) 0mo $109,000 $150 40
19355 Turnberry Way Unit 25C 1.07mi 1/1.5 1,077 (+17%) 0mo $225,000 $209 38
17011 N Bay Rd #117 1.15mi 1/1.5 767 (-16%) 0mo $190,000 $248 38
3849 NE 169th St #201 0.62mi 2/2.0 (+1) 1,085 (+18%) 0mo $205,000 $189 37
17100 N Bay Rd #1614 1.05mi 2/2.0 (+1) 1,024 (+12%) 0mo $400,000 $391 36
2841 NE 163rd St #215 1.20mi 2/2.0 (+1) 1,145 (+25%) 0mo $285,000 $249 31
18260 N Bay Rd #420 0.89mi 2/2.0 (+1) 1,065 (+16%) 0mo $435,000 $408 31
230 174th St #2307 0.98mi 2/2.0 (+1) 1,070 (+17%) 0mo $360,000 $336 31

Match score weights: distance 35% · size 25% · config 20% · recency 20%. Top-matched comps best support the ARV.

Projected returns pro-forma

0.53% appreciation · 0.94% rent growth · sell at horizon

5-year hold
IRR
3.8%
Equity multiple
1.18×
Total profit
$10,694
Equity at exit
$66,569
10-year hold
IRR
6.7%
Equity multiple
1.72×
Total profit
$42,422
Equity at exit
$84,629

Cash invested: $58,800 (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.

Active competition Active MLS

For sale now
19 active · 8 under contract
Median asking
$330,000 ($358/sqft)
Median days on market
142 d
This list price
11% of active listings are priced below it
ARV vs active asking
-0.6% vs current asking $/sqft

Closed sales set the value; these active listings set current market conditions and a practical price ceiling.

ZIP-level market 33160

Home prices YoY
0.2%
Rents YoY
0.9%
Active inventory
2334
Price-to-rent
5.6×

Monthly cashflow live

Estimated rent
$3,127 medium interval (Pro) →
Mortgage (P&I)
$1,101
Tax from tax record
$215 /mo · $2,582/yr
Insurance
$88
HOA
$793
Vacancy / Maint / Mgmt
$657
Net cashflow
$274

Break-even live

Break-even rent $2,781
Max offer price $210,000
Occupancy floor 86%

Sensitivity live

Price -10% $393 -5% $333 +0% $274 +5% $214 +10% $155
Rent -10% $27 -5% $150 +0% $274 +5% $397 +10% $521
Rate -1.0pp $379 -0.5pp $327 base $274 +0.5pp $219 +1.0pp $164

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
$52,500
Closing costs
$6,300
Reserves months
Total cash needed

Loan-product check · same deal, 3 products live

Conventional

25% down · 7.5% · 30yr

Cash invested
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Personal DTI + credit; lowest rate.

DSCR

20% down · 8.5% · 30yr

Cash invested
Monthly P&I
Monthly cashflow
DSCR
Eligible?

No personal income docs; deal must DSCR.

Hard money

10% down · 12.0% · 12mo

Cash invested
Monthly P&I
Monthly cashflow
DSCR
Eligible?

Short-term bridge; refi at stabilization.

Property features AI

Finance

Other
Association-maintained pool
Financial info
Pets allowed with restrictions/possible restrictions (conditional)
HOA & community
Monthly association feeAssociation amenities include a pool and elevatorsAssociation covers amenities, common areas, sewer, security, trash and water

Exterior

Parking
One covered garage space with garage door opener
Security
Closed-circuit camerasDoorman
Utilities
Has water serviceHas sewer serviceHas power
Home design
Condominium (attached property)21 total storiesEntry on level 5Bayfront view
Construction
Block construction
Exterior features
BalconyBarbecue areaCourtyardOpen patio

Interior

Bedrooms
Bedroom located on the main level
Flooring
Carpet flooring
Bathrooms
1 full bathroom1 half bathroom
Heating & cooling
Central air conditioningElectric heating
Interior features
Bedroom on main levelFirst-floor entry

HOA detail $793/mo · $9,516/yr condo

Likely covers
poolgym
Assessments
None detected in remarks — confirm with the listing agent.

Listing history 50 events

  1. 2026-09-23
    days on market $210,000 Active 164 DOM
  2. 2026-09-22
    days on market $210,000 Active 163 DOM
  3. 2026-09-20
    days on market $210,000 Active 161 DOM
  4. 2026-09-18
    days on market $210,000 Active 159 DOM
  5. 2026-09-17
    days on market $210,000 Active 158 DOM
  6. 2026-09-16
    days on market $210,000 Active 157 DOM
  7. 2026-09-15
    days on market $210,000 Active 156 DOM
  8. 2026-09-13
    days on market $210,000 Active 154 DOM
  9. 2026-09-12
    days on market $210,000 Active 153 DOM
  10. 2026-09-11
    days on market $210,000 Active 152 DOM
  11. 2026-09-05
    days on market $210,000 Active 146 DOM
  12. 2026-09-04
    days on market $210,000 Active 145 DOM
  13. 2026-08-31
    days on market $210,000 Active 141 DOM
  14. 2026-08-29
    days on market $210,000 Active 139 DOM
  15. 2026-08-28
    days on market $210,000 Active 138 DOM
  16. 2026-08-27
    days on market $210,000 Active 137 DOM
  17. 2026-08-26
    days on market $210,000 Active 136 DOM
  18. 2026-08-25
    days on market $210,000 Active 135 DOM
  19. 2026-08-23
    days on market $210,000 Active 133 DOM
  20. 2026-08-22
    days on market $210,000 Active 132 DOM
  21. 2026-08-21
    days on market $210,000 Active 131 DOM
  22. 2026-08-20
    days on market $210,000 Active 130 DOM
  23. 2026-08-19
    days on market $210,000 Active 129 DOM
  24. 2026-08-18
    days on market $210,000 Active 128 DOM
  25. 2026-08-16
    days on market $210,000 Active 126 DOM
  26. 2026-08-15
    days on market $210,000 Active 125 DOM
  27. 2026-08-14
    days on market $210,000 Active 124 DOM
  28. 2026-08-13
    days on market $210,000 Active 123 DOM
  29. 2026-08-12
    days on market $210,000 Active 122 DOM
  30. 2026-08-11
    days on market $210,000 Active 121 DOM
  31. 2026-08-10
    days on market $210,000 Active 120 DOM
  32. 2026-08-09
    days on market $210,000 Active 119 DOM
  33. 2026-08-08
    days on market $210,000 Active 118 DOM
  34. 2026-08-06
    days on market $210,000 Active 116 DOM
  35. 2026-08-05
    days on market $210,000 Active 115 DOM
  36. 2026-08-04
    days on market $210,000 Active 114 DOM
  37. 2026-08-03
    days on market $210,000 Active 113 DOM
  38. 2026-07-31
    days on market $210,000 Active 110 DOM
  39. 2026-07-28
    days on market $210,000 Active 107 DOM
  40. 2026-07-24
    days on market $210,000 Active 103 DOM
  41. 2026-07-23
    days on market $210,000 Active 102 DOM
  42. 2026-07-22
    days on market $210,000 Active 101 DOM
  43. 2026-07-21
    days on market $210,000 Active 100 DOM
  44. 2026-07-20
    days on market $210,000 Active 99 DOM
  45. 2026-07-18
    days on market $210,000 Active 97 DOM
  46. 2026-07-16
    days on market $210,000 Active 95 DOM
  47. 2026-07-15
    days on market $210,000 Active 94 DOM
  48. 2026-07-13
    days on market $210,000 Active 92 DOM
  49. 2026-07-13
    days on market $210,000 Active 91 DOM
  50. 2026-07-11
    days on market $210,000 Active 90 DOM

ⓘ 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
$2,582 · $215/mo
Projected year-2 tax
$2,582 · $215/mo
Expected delta
$0/yr ($0/mo · 0.0%)

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

Nearby sold comps map

Loading sold comps map…

Walkable amenities ~0.75 mi

Loading nearby amenities…

Taxation est. · year 1

Rental income
$37,528
− Mortgage interest
−$11,763
− Property taxes
−$2,582
− Insurance
−$1,050
− Repairs & maintenance
−$3,002
− Management
−$3,002
− HOA
−$9,516
− Depreciation
−$6,109
Taxable income
$503
combined federal + state — saved on this device
Est. tax owed @ 24.0%
−$121
After-tax cash flow
$3,163/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.

Condition & rehab AI · 3 photos

Poor 20/100 Extensive rehab Est. rehab $45,900–$82,620 screening

This property requires extensive renovations and repairs, including a new roof, exterior and interior updates, and landscaping improvements. The home's current condition is poor, and significant investment is needed to bring it up to market standards.

Repairs flagged

  • Major roof — Visible discoloration and potential damage on the roof.
  • Major exterior walls — Weathered and in need of repainting.
  • Major flooring — Worn and dated, indicating a need for replacement.
  • Major interior walls — In need of fresh paint and updates.
  • Major windows — Old and in need of replacement.
  • Major HVAC/mechanical systems — No photos provided, but the overall condition suggests a need for updates.
  • Major landscaping — Overgrown and in need of landscaping improvements.
  • Major foundation/structure — No photos provided, but the overall condition suggests a need for updates.

Value-add opportunities

  • Both extensive exterior and interior renovations — Updating the exterior and interior will significantly improve the home's appearance and appeal to potential buyers and renters.
  • Both new roof — A new roof will not only improve the home's appearance but also increase its value by reducing maintenance costs and potential future repairs.
  • Both new flooring and paint — Updating the flooring and painting the interior will make the home more attractive and increase its value.
  • Both new windows — New windows will improve the home's energy efficiency and increase its value.
  • Both HVAC and mechanical systems — Upgrading the HVAC and mechanical systems will improve the home's comfort and energy efficiency, increasing its value.
  • Both landscaping and curb appeal — A well-maintained and landscaped exterior will improve the home's curb appeal and increase its value.
  • Both foundation and structure repairs — Repairing the foundation and structure will ensure the home's structural integrity and increase its value.

ⓘ Rehab cost is a screening estimate — Extensive scope × the home's square footage at US $/sqft rules of thumb (the same model as the Flip Finder). Get contractor quotes + a written scope before underwriting.

F Composite school gradezoned avg 44/100

Zoned Schools

Elementary Aventura Waterways K-8 Center B- FL #664/2,144 Nat'l #7,053/41,679 Middle Highland Oaks Middle School F FL #373/571 Nat'l #6,151/14,009 High Dr. Michael M. Krop Senior High F FL #400/667 Nat'l #10,191/17,239

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
A Composite livability gradescore 80/100

Livability — Aventura

Score
80/100
State rank
#127
US rank
#1834

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

Census place
Aventura, FL
County
Miami-Dade County · 3,126,439 people
City population
90,324
Metro
Miami-Fort Lauderdale-Pompano Beach, FL
Population (ZIP)
43,718
Household income
$67,040
Rent vs Own
41.0% rent · 59.0% own
Severe rent burden
17% of renters

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
Diverse neighborhood (Simpson 0.59)
Race & ethnicity
Hispanic / Latino 46% White 44% Two or more races 27% Black 4% Asian 2%
Hispanic origin (detail)
Mexican 1% Puerto Rican 3% Cuban 8% Dominican 1% Salvadoran 4%
Common ancestry
Scotch-Irish 8% Hispanic 3% Subsaharan African 3%
Foreign-born
61% · Canada, Jamaica, Dominican Republic
Languages at home
29% English-only · Spanish 45% Russian/Polish/Slavic 12% Other Indo-European 5%

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

Price history

+147.1% since first listed
17 events — show timeline
  • 2026-04-12 Listed $210,000 MARMLS
  • 2025-05-27 Listing Removed MARMLS
  • 2024-06-18 Relisted MARMLS
  • 2024-06-18 Relisted MARMLS
  • 2024-05-28 Listed $280,000 MARMLS
  • 2021-11-02 Sold (Public Records) $170,000 Public Records
  • 2021-10-19 Sold (MLS) $170,000 MARMLS
  • 2021-09-09 Pending MARMLS
  • 2021-09-01 Relisted MARMLS
  • 2021-06-07 Pending MARMLS
  • 2021-05-12 Price Changed $179,000 MARMLS
  • 2021-03-11 Listed $184,000 MARMLS
  • 2008-04-01 Sold (Public Records) $185,000 Public Records
  • 2008-03-31 Sold (MLS) $185,000 MARMLS
  • 2002-05-09 Sold (Public Records) $120,000 Public Records
  • 2000-07-18 Sold (Public Records) $75,000 Public Records
  • 1993-02-09 Sold (Public Records) $85,000 Public Records

Property tax history

+2.4%/yr

Latest (2025): $2,582 · -3.8% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…