6421 SW 59th Ave

South Miami, FL 33143 · single_family · For Sale · 28 days on market
Asking price$1,299,000
4 beds 3 baths 1,731 sqft
Suggested offer$1,244,817$54,183 above the est. market value of $1,244,817.
View on Realtor.com →
Listed by Jonathan Vega · One Sotheby's International Realty
Typesingle_family
Built2025
Price / sqft$750
Est. value (own analysis)$1,244,817
Rent estimate (own analysis)$8,950/mo
HOANone
Wind10/10Extreme$Heat10/10ExtremeFlood4/10moderate$Air2/10MinorWildfire1/10Minimal
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Neighborhood

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Statusfor_sale
Listed date2026-08-05
Removed date
MLSMiamiMLS #A12062633
Coordinates25.71101, -80.28923
Address6421 SW 59th Ave
CitySouth Miami
StateFL
Zip33143
Listing ID6384420291
Sourceus-real-estate-listings, cached 2026-08-31

ZIP market snapshot (33143)

Typical home value (ZHVI)$957,553
Typical rent (ZORI)$2,761/mo
Zillow Research's ZHVI (home value index) and ZORI (rent index) for this ZIP, as of 2026-07 — free published data, refreshed monthly, no RentCast quota spent. "Typical value/rent" is a smoothed index, not a literal median of active listings.

Underwriting (buy-and-hold, default assumptions)

Purchase price$1,299,000
Down payment (20.0%)$259,800
Loan amount$1,039,200
Closing costs (5.0%)$64,950
Total cash to close$324,750
Rent (comp-derived)$8,950$107,400
Vacancy loss (8.0%)

Vacancy Loss

Gross Scheduled Rent × Vacancy Rate

Gross scheduled rent (annual) comp$107,400
Vacancy rate (assumption) assumption8.0%

$107,400 × 8.0% = $8,592

Effective gross income$8,234$98,808
Property tax (placeholder 1.9% of price)$2,057$24,681
Insurance (est. scaled by flood & wind risk)$1,386$16,627
HOA dues$0$0
Management (0.0% of EGI)$0$0
Maintenance (5.0% of GSR)$448$5,370
Total operating expenses$3,890$46,678
Net operating income (NOI)

Net Operating Income (NOI)

Effective Gross Income − Total Operating Expenses

Effective gross income derived$98,808
Total operating expenses derived$46,678

$98,808 − $46,678 = $52,130

Debt service (6.66%, avg 30yr rate as of 2026-08-27, 30yr amortizing)

Monthly Principal & Interest

Standard amortization on the loan amount, at the effective rate and term

Loan amount derived$1,039,200
Interest rate (avg 30yr rate) comp6.7%
Term (assumption) assumption30 years

$1,039,200 amortized at 6.7% over 30 years = $6,678/mo

CapEx reserve (5.0% of GSR)$448$5,370
Mortgage insurance (PMI) (0.0% of loan, not required — down payment ≥ 20%)$0$0
Cash flow

Monthly Cash Flow

(NOI − Annual Debt Service − Annual CapEx Reserve − Annual PMI) ÷ 12

NOI derived$52,130
Annual debt service derived$80,138
Annual CapEx reserve assumption$5,370
Annual PMI assumption$0

($52,130 − $80,138 − $5,370 − $0) ÷ 12 = -$2,782

Cap rate

Cap Rate

NOI ÷ Purchase Price

NOI derived$52,130
Purchase price data$1,299,000

$52,130 ÷ $1,299,000 = 4.0%

Cash-on-cash

Cash-on-Cash Return

Annual Cash Flow ÷ Total Cash Invested

Annual cash flow derived-$33,378
Total cash to close derived$324,750

-$33,378 ÷ $324,750 = -10.3%

DSCR

Debt Service Coverage Ratio (DSCR)

NOI ÷ Annual Debt Service

NOI derived$52,130
Annual debt service derived$80,138

$52,130 ÷ $80,138 = 0.65

Rent-to-price (1% rule)

Rent-to-Price (the "1% rule")

(Gross Scheduled Rent ÷ 12) ÷ Purchase Price

Gross scheduled rent (annual) comp$107,400
Purchase price data$1,299,000

($107,400 ÷ 12) ÷ $1,299,000 = 0.7%

Gross rent multiplier

Gross Rent Multiplier (GRM)

Purchase Price ÷ Gross Scheduled Rent

Purchase price data$1,299,000
Gross scheduled rent (annual) comp$107,400

$1,299,000 ÷ $107,400 = 12.1

Operating expense ratio

Operating Expense Ratio

Total Operating Expenses ÷ Effective Gross Income

Total operating expenses derived$46,678
Effective gross income derived$98,808

$46,678 ÷ $98,808 = 47.2%

Break-even occupancy

Break-Even Occupancy

(Total OpEx + Annual Debt Service + Annual PMI) ÷ Gross Scheduled Rent

Total operating expenses derived$46,678
Annual debt service derived$80,138
Annual PMI assumption$0
Gross scheduled rent (annual) comp$107,400

($46,678 + $80,138 + $0) ÷ $107,400 = 118.1%

Comparables

Same ZIP. Real active rental listings, used to derive the rent estimate above.

AddressTypeBedsBathsSqftAsking rentListedDays on market
single_family431,957$12,0002026-07-14
single_family421,799$6,5002026-07-01
single_family432,045$9,0002026-06-30
single_family432,200$6,400
single_family431,722$4,4002026-06-17
single_family432,000$8,9502026-08-04
single_family432,125$6,0002025-10-18
single_family422,008$8,8002026-07-15
single_family452,119$13,0002026-05-29
single_family422,098$9,0002026-06-26
single_family432,309$9,2502026-09-02

7831 SW 54th Ct

Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage1,957
Listed2026-07-14
Days on market

Asking rent: $12,000

View on Zillow →

7055 SW 84th Ave

Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 2 ba
Square footage1,799
Listed2026-07-01
Days on market

Asking rent: $6,500

View on Zillow →

5390 Sunset Dr

Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage2,045
Listed2026-06-30
Days on market

Asking rent: $9,000

View on Zillow →

6681 SW 71st Ct

Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage2,200
Listed
Days on market

Asking rent: $6,400

View on Zillow →

5910 SW 62nd Ter Unit 0

South Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage1,722
Listed2026-06-17
Days on market

Asking rent: $4,400

View on Zillow →

460 San Servando Ave

Coral Gables, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage2,000
Listed2026-08-04
Days on market

Asking rent: $8,950

View on Zillow →

South Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage2,125
Listed2025-10-18
Days on market

Asking rent: $6,000

View on Zillow →

5901 SW 64th St

South Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 2 ba
Square footage2,008
Listed2026-07-15
Days on market

Asking rent: $8,800

View on Zillow →

6111 SW 86th St

South Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 5 ba
Square footage2,119
Listed2026-05-29
Days on market

Asking rent: $13,000

View on Zillow →

5721 SW 59th Ct

South Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 2 ba
Square footage2,098
Listed2026-06-26
Days on market

Asking rent: $9,000

View on Zillow →

5631 SW 58th Ct Unit 0

South Miami, 33143 · rent comp

Bedrooms / bathrooms4 bd / 3 ba
Square footage2,309
Listed2026-09-02
Days on market

Asking rent: $9,250

View on Zillow →

Same ZIP & bedroom count. Closed sales from Realtor.com over the last 12 months, matched to this property's type — real transaction prices, not asking prices. Falls back to Miami-Dade County public records (property appraiser tax roll) when Realtor.com has no sales on file for the area.

AddressTypeBedsBathsLiving sqftSale priceSale date
6874 SW 57th Tersingle_family453,657$3,260,0002026-08-27
8235 SW 86th Tersingle_family432,919$2,630,0002026-08-19
5735 SW 57th Tersingle_family422,024$1,275,0002026-08-18
7222 SW 52nd Ctsingle_family443,688$3,200,0002026-08-10
8335 SW 66th Stsingle_family443,974$2,000,0002026-08-10
6002 SW 79th Ctsingle_family433,685$2,650,0002026-08-06
6539 SW 84th Avesingle_family432,309$2,000,0002026-08-03
8040 SW 63rd Plsingle_family421,657$1,300,0002026-07-31
8020 SW 62nd Avesingle_family433,248$2,825,0002026-07-16
7180 E Lago Drsingle_family445,818$6,850,0002026-07-09
6311 SW 65th Avesingle_family422,150$1,175,0002026-07-01
6510 Manor Lnsingle_family412,014$1,000,0002026-06-26
6090 SW 63rd Avesingle_family432,412$1,350,0002026-06-18
8700 SW 83rd Ctsingle_family433,333$1,550,0002026-06-18
7743 SW 72nd Ctsingle_family432,135$2,350,0002026-06-16
8611 SW 82nd Tersingle_family432,157$1,250,0002026-06-16
7500 SW 81st Avesingle_family442,452$2,000,0002026-06-12
7009 SW 66th Avesingle_family432,950$1,250,0002026-05-29
8390 SW 64th Stsingle_family431,556$2,000,0002026-05-29
5100 SW 75th Stsingle_family442,259$2,650,0002026-05-21
6904 SW 65th Avesingle_family422,859$1,350,0002026-05-20
7701 SW 79th Ctsingle_family433,913$2,175,0002026-05-19
6300 SW 62nd Plsingle_family432,738$1,000,0002026-05-18
6000 SW 62nd Stsingle_family421,371$820,0002026-05-18
6645 SW 73rd Ctsingle_family434,328$3,095,0002026-05-01
7950 Old Cutler Rdsingle_family443,122$2,250,0002026-04-22
545 Casuarina Concoursesingle_family4510,286$55,000,0002026-04-22
8450 SW 83rd Stsingle_family422,442$950,0002026-04-22
5680 SW 86th Stsingle_family422,381$1,947,5002026-04-20
7755 SW 85th Ctsingle_family443,379$3,100,0002026-04-20
5900 SW 63rd Stsingle_family421,300$650,0002026-04-17
7285 SW 72nd Tersingle_family444,143$2,750,0002026-04-13
7765 SW 57th Tersingle_family434,459$3,450,0002026-04-10
6634 SW 76th Tersingle_family432,127$1,399,0002026-04-07
6220 SW 61st Stsingle_family442,233$1,310,0002026-04-02
8115 SW 63rd Plsingle_family421,686$1,270,0002026-03-31
8001 SW 66th Tersingle_family443,059$2,500,0002026-03-27
8375 SW 78th Stsingle_family444,500$2,500,0002026-03-27
5990 SW 83rd Stsingle_family433,904$2,355,0002026-03-26
5900 SW 62nd Tersingle_family421,300$695,0002026-03-20
6331 SW 62nd Tersingle_family432,337$1,200,0002026-03-17
6031 SW 82nd Avesingle_family431,965$1,987,0002026-03-16
8150 SW 52nd Avesingle_family476,352$13,104,0002026-03-16
6500 SW 60th Avesingle_family411,228$685,0002026-03-09
8271 SW 67th Stsingle_family454,080$4,120,0002026-02-13
6320 SW 62nd Tersingle_family431,918$1,560,0002026-02-09
5854 SW 61st Stsingle_family44$1,850,0002026-02-06
7045 SW 83rd Plsingle_family421,568$860,0002026-01-23
7421 SW 53rd Plsingle_family444,344$5,750,0002026-01-23
5858 SW 80th Stsingle_family442,291$1,900,0002026-01-20

Same ZIP. Other properties currently for sale nearby — asking prices, not closed sale prices. Not a price comp; see Sold comps for actual transaction history.

AddressTypeBedsBathsSqftAsking priceDays on market
5901 SW 62nd Stsingle_family411,688$1,000,000
6990 SW 58th Stsingle_family453,590$3,495,000
7790 SW 53rd Avesingle_family442,089$3,350,000
8215 SW 63rd Plsingle_family432,452$1,980,000
8235 SW 85th Tersingle_family453,243$1,850,000
6801 SW 82nd Avesingle_family431,888$1,975,000
7400 SW 81st Avesingle_family453,829$3,395,000
7830 SW 48th Ctsingle_family443,986$4,795,000

10-year hold projection

IRR3.4%
Equity multiple1.55x
Total return (10yr)$349,673
YearProperty valueNOICash flowLoan balanceEquity
1$1,337,970$52,130-$33,378$1,027,933$310,037
2$1,378,109$53,927-$31,715$1,015,892$362,217
3$1,419,452$55,784-$29,996$1,003,024$416,428
4$1,462,036$57,703-$28,218$989,272$472,764
5$1,505,897$59,685-$26,380$974,577$531,320
6$1,551,074$61,733-$24,480$958,872$592,202
7$1,597,606$63,850-$22,516$942,088$655,518
8$1,645,534$66,036-$20,486$924,152$721,382
9$1,694,900$68,294-$18,387$904,984$789,916
10$1,745,747$70,627-$16,217$884,500$861,247
Assumes 3.0% annual rent growth, 2.5% expense growth, 3.0% appreciation, and a 6.0% selling cost at exit — all placeholder assumptions, not market-derived.
All figures are estimates for evaluation purposes only, not investment, tax, legal, or insurance advice. Property tax is estimated from a real matched tax bill or millage rate when available, a placeholder % of price otherwise; insurance is scaled by flood and wind risk where those are known and a flat percentage otherwise — never a real quote. Verify all of them, along with association restrictions and permit status, before committing capital. Rent estimates come from real comps or Zillow’s ZIP index, not appraisals.