CashFlowRE
Sign in Sign up
510 SW South River Dr #204
C- Composite 53.22
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 +14.1/30.0
  • ARV discount +13.0/15.0
  • 1% rule +7.4/10.0
  • Schools +4.5/10.0
  • DSCR +4.3/10.0
  • Livability +4.2/5.0
  • Rent growth +3.2/5.0
  • Condition / age +2.5/5.0
  • Appreciation +0.0/10.0

$135,000

510 SW South River Dr #204 · Stuart, FL 34997
1 bd · 1.0 ba · 697 sqft · Condo public records · 154 Days on market
Built 1988 $194/sqft · 12% below area Est $154k · 12% under $360/mo HOA · 21% of rent

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

Listing remarks MLS

Ready for a winter retreat or even full time Florida living? This move in ready, fully furnished condo is just for you! This condo is located in the highly desirable 55+ community of South River. The community offers an active lifestyle with a community pool, tennis, pickleball, bocce, shuffleboard, horseshoes, basketball, clubhouse and river access w/ kayak, small boat & rv storage based on availability. You will be conveniently close to shopping, dining, beaches and highways. Make your appointment today!

Key facts

  • 55+ community
  • Tennis
  • Community pool

Tags

55+ COMMUNITYCOMMUNITY POOLTENNISPICKLEBALLBOCCESHUFFLEBOARD

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 $135k.

Deal economics

  • At list price, monthly cash flow is $-47 ($-564/yr) — negative.
  • To cash-flow at today's rent, offer at most $127k (6.1% below list).
  • Meets the 1% rule at list price ($2k rent vs $135k).
  • Recommended offer: $119k (12.0% below list) — sets the bar for market timing.
  • Cap rate 6.5% vs local median 3.5% in Stuart — 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 84/100 on livability (#39 in FL, #790 nationally) — a professional / high-income tenant draw. Strengths: commute A+, housing A+, health & safety A+; Watch: crime C-, employment C-, amenities D.
  • Martin (suburban): math 52% / reading 53% proficiency, ranked #24 of 73 in FL (top 33%) — acceptable for families but not a draw, mixed tenant base, ~2y average lease.
  • Market conditions: Rents rising (+2.7%/yr); 595 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); solid renter incomes; 737 units permitted in Martin County in 2024 (167 in 5+ unit buildings).

Forward outlook

  • Local home prices are declining (-3.0%/yr); year-one equity from $933 of loan paydown is wiped out by about $4k of value loss. Plan a longer hold.
  • Martin County population projected at +19% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.

Negotiation context

  • It's been on market 154 days — a 12% lower offer ($119k) is reasonable based on typical stale-listing flexibility.
  • 2 sale attempts since 3y 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; HOA is 21% of rent.
  • Climate carrying-cost: major flood risk; severe wind risk, 99% chance of damaging wind over 30y; extreme-heat days projected 6→20/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.
Recommended offer $118,800 (12.0% 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 154 days. Have you received any prior offers? Is the seller open to a 12% 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. 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
1.24%
Cap rate
6.47%
Cash-on-cash
0.62%
DSCR
1.03
GRM
6.7

CMA / ARV

ARV (median comp)
$153,921
List price
$135,000
Delta
-12.29%
Verdict
UNDERPRICED
Comps
20 within 1.0 mi

Projected returns pro-forma

-3.0% appreciation · 2.71% rent growth · sell at horizon

5-year hold
IRR
-19.0%
Equity multiple
0.34×
Total profit
$-25,061
Equity at exit
$20,129
10-year hold
IRR
-11.8%
Equity multiple
0.30×
Total profit
$-26,467
Equity at exit
$11,672

Cash invested: $37,800 (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.

ZIP-level market 34997

Rents YoY
2.7%
Active inventory
595
Price-to-rent
6.7×

Monthly cashflow live

Estimated rent
$1,679 medium interval (Pro) →
Mortgage (P&I)
$708
Tax from tax record
$183 /mo · $2,197/yr
Insurance
$56
Flood insurance flood zone
−$66 /mo · $798/yr
HOA
$360
Vacancy / Maint / Mgmt
$353
Net cashflow
$-47

Break-even live

Break-even rent $1,739
Max offer price $126,698
Occupancy floor 98%

Sensitivity live

Price -10% $29 -5% $-9 +0% $-47 +5% $-85 +10% $-123
Rent -10% $-180 -5% $-113 +0% $-47 +5% $19 +10% $86
Rate -1.0pp $21 -0.5pp $-13 base $-47 +0.5pp $-82 +1.0pp $-118

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
$33,750
Closing costs
$4,050
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

AddressBedsBaths SqftRent$/sqft DOM Units Dist
301 SW South River Dr #104 Stuart, FL 1.0 1.0 697 $1,500 $2.15 24d 1 0.19mi
3800 S Kanner Hwy Stuart, FL 3.0 1.0–2.0 970 $2,265 $2.34 15d 21 0.61mi
4284 SE Cove Lake Cir Stuart, FL 1.0 1.0 719 $1,815 $2.52 24d 1 0.84mi

HOA detail condo

Monthly dues
$360 · $4,320/yr
Likely covers
pool
Assessments
None detected in remarks — confirm with the listing agent.

Listing history 8 events

  1. 2026-05-18
    status Pending 518-char remark
    Show marketing remark (518 chars)

    Ready for a winter retreat or even full time Florida living? This move in ready, fully furnished condo is just for you! This condo is located in the highly desirable 55+ community of South River. The community offers an active lifestyle with a community pool, tennis, pickleball, bocce, shuffleboard, horseshoes, basketball, clubhouse and river access w/ kayak, small boat & rv storage based on availability. You will be conveniently close to shopping, dining, beaches and highways. Make your appointment today!

  2. 2025-12-15
    listed $135,000 Active 518-char remark
    Show marketing remark (518 chars)

    Ready for a winter retreat or even full time Florida living? This move in ready, fully furnished condo is just for you! This condo is located in the highly desirable 55+ community of South River. The community offers an active lifestyle with a community pool, tennis, pickleball, bocce, shuffleboard, horseshoes, basketball, clubhouse and river access w/ kayak, small boat & rv storage based on availability. You will be conveniently close to shopping, dining, beaches and highways. Make your appointment today!

  3. 2023-03-30
    soldstatus $170,000
  4. 2023-03-29
    soldstatus $170,000 Closed 569-char remark
    Show marketing remark (569 chars)

    ADULT 1/1 GATED COMMUNITY. FURNISHED UNIT ONLY SEASAONLLY USED. PATIO OVERLOOKS A PEACEFUL GREEN SPACE. LARGE STORAGE CLOSET OFF THE PATIO. SOUTH RIVER IS A BEAUTIFUL COMMUNITY WITH MUCH OPEN GREEN SPACES. COVERED CARPORT #24 REMAINS WITH THE UNIT. SOUTH RIVER OFFERS LIMITLESS ACTIVITIES, INCLUDING A BOAT RAMP ON THE ST LUCIE RIVER. BOAT & RV STORAGE STORAGE-BASED ON AVAILIBILITY. POOL, TENNIS, PICKLE BALL, WORKSHOP, BOCCE, SHUFFLEBOARD, HORSEHOES, BASKETBALL, AND MORE. MONTHLY FEE ALSO INCLUDES THE INTERNET. NO PETS! NO RENTALS THE FIRST YEAR OF OWNERSHIP.

  5. 2023-03-11
    historical Active Under Contract 569-char remark
    Show marketing remark (569 chars)

    ADULT 1/1 GATED COMMUNITY. FURNISHED UNIT ONLY SEASAONLLY USED. PATIO OVERLOOKS A PEACEFUL GREEN SPACE. LARGE STORAGE CLOSET OFF THE PATIO. SOUTH RIVER IS A BEAUTIFUL COMMUNITY WITH MUCH OPEN GREEN SPACES. COVERED CARPORT #24 REMAINS WITH THE UNIT. SOUTH RIVER OFFERS LIMITLESS ACTIVITIES, INCLUDING A BOAT RAMP ON THE ST LUCIE RIVER. BOAT & RV STORAGE STORAGE-BASED ON AVAILIBILITY. POOL, TENNIS, PICKLE BALL, WORKSHOP, BOCCE, SHUFFLEBOARD, HORSEHOES, BASKETBALL, AND MORE. MONTHLY FEE ALSO INCLUDES THE INTERNET. NO PETS! NO RENTALS THE FIRST YEAR OF OWNERSHIP.

  6. 2023-03-09
    listed $169,500 Active 569-char remark
    Show marketing remark (569 chars)

    ADULT 1/1 GATED COMMUNITY. FURNISHED UNIT ONLY SEASAONLLY USED. PATIO OVERLOOKS A PEACEFUL GREEN SPACE. LARGE STORAGE CLOSET OFF THE PATIO. SOUTH RIVER IS A BEAUTIFUL COMMUNITY WITH MUCH OPEN GREEN SPACES. COVERED CARPORT #24 REMAINS WITH THE UNIT. SOUTH RIVER OFFERS LIMITLESS ACTIVITIES, INCLUDING A BOAT RAMP ON THE ST LUCIE RIVER. BOAT & RV STORAGE STORAGE-BASED ON AVAILIBILITY. POOL, TENNIS, PICKLE BALL, WORKSHOP, BOCCE, SHUFFLEBOARD, HORSEHOES, BASKETBALL, AND MORE. MONTHLY FEE ALSO INCLUDES THE INTERNET. NO PETS! NO RENTALS THE FIRST YEAR OF OWNERSHIP.

  7. 1997-03-21
    soldstatus $32,000
  8. 1988-07-01
    soldstatus $44,900

ⓘ 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
$2,197 · $183/mo
Projected year-2 tax
$2,197 · $183/mo
Expected delta
$0/yr ($0/mo · 0.0%)

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

Climate risk First Street

  • 🌊 Flood 7/10 Severe FEMA zone X (shaded) · 91% chance over 30 yrs
  • 🔥 Wildfire 3/10 Moderate
  • 🌡 Heat 10/10 Extreme 6 d/yr ≥106°F today · 20 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
$20,153
− Mortgage interest
−$7,562
− Property taxes
−$2,197
− Insurance
−$1,472
− Repairs & maintenance
−$1,612
− Management
−$1,612
− HOA
−$4,320
− Depreciation
−$3,927
Taxable loss
−$2,550
combined federal + state — saved on this device
Est. tax savings @ 24.0%
+$612
After-tax cash flow
$48/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
Martin
NCES district ID
1201290
Math proficiency
52% ▼ -14.00%
Reading proficiency
53% ▼ -4.00%
Median HH income
$52,482
Composite
45.1/100
National rank
#2690
State rank
#24 of 73 in FL

Livability — Stuart

Score
84/100
State rank
#39
US rank
#790

Category grades

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

Schools grade is shown separately in the Schools card above.

Census & demographics

County
Martin County · 165,223 people
City population
65,812
Metro
Port St. Lucie, FL
Population (ZIP)
47,075
Household income
$78,136
Rent vs Own
19.1% rent · 80.9% own
Severe rent burden
1323.0

Population outlook (Martin County) Hauer SSP2

Today (2025)
172,383 people
By 2030
180,192 · +4.5%
By 2040
194,114 · +12.6%
By 2050
204,992 · +18.9%
By 2075
229,641 · +33.2%
By 2100
232,146 · +34.7%

Race, ethnicity, and origin ACS 2023

Neighborhood character
Predominantly White (74%)
Race & ethnicity
White 74% Hispanic / Latino 19% Two or more races 9% Black 3% Asian 1%
Hispanic origin (detail)
Mexican 4% Puerto Rican 2% Cuban 3%
Common ancestry
Romanian 3% Lithuanian 3% Slovak 2%
Foreign-born
14% · Canada, Jamaica, China
Languages at home
81% English-only · Spanish 14% French/Haitian/Cajun 2% Other Indo-European 1%

Political lean MEDSL · Martin

2024 margin
Solid R (+31.1) · D 34.1% · R 65.2%
2008→2024 swing
-17.5pp toward R · 2008: -13.6pp · 2024: -31.1pp
All cycles
2024: R+31.1 2020: R+24.6 2016: R+26.9 2012: R+22.9 2008: R+13.6

Not yet ingested

Civics

Market trends

HPI YoY
▼ -319.78%
Current HPI
336.7717
Rent YoY
▲ 2.71%
Metro
Port St. Lucie, FL
State GDP YoY
▲ 3.28%
F500 in state
36

Industry mix (Fortune 500 HQ in FL)

Industry F500 HQs Revenue

Price history

+200.7% since first listed
8 events — show timeline
  • 2026-05-18 Pending Beaches MLS
  • 2025-12-15 Listed $135,000 Beaches MLS
  • 2023-03-30 Sold (Public Records) $170,000 Public Records
  • 2023-03-29 Sold (MLS) $170,000 Beaches MLS
  • 2023-03-11 Contingent Beaches MLS
  • 2023-03-09 Listed $169,500 Beaches MLS
  • 1997-03-21 Sold (Public Records) $32,000 Public Records
  • 1988-07-01 Sold (Public Records) $44,900 Public Records

Property tax history

+12.1%/yr

Latest (2025): $2,197 · -8.1% YoY. Source: county tax records.

Cash-flow waterfall

monthly

Sold comps — $/sqft

last 12 mo · ≤1 mi

Loading sold comps…