6387 SW 42nd St

South Miami, FL 33155 · single_family · For Sale · 13 days on market
Asking price$725,000
2 beds 1 baths 1,100 sqft
Suggested offer$576,487$148,513 above the est. market value of $576,487.
View on Realtor.com →
Listed by Lynley W. Ciorobea · Real Broker LLC
Typesingle_family
Built1947
Price / sqft$659
Est. value (own analysis)$576,487
Rent estimate (own analysis)$2,998/mo
HOANone
Wind10/10Extreme$Heat10/10ExtremeFlood3/10moderate$Air2/10MinorWildfire1/10Minimal
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Neighborhood

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Statusfor_sale
Listed date2026-08-20
Removed date
MLSMiamiMLS #A12074960
Coordinates25.73237, -80.29838
Address6387 SW 42nd St
CitySouth Miami
StateFL
Zip33155
Listing ID6944639573
Sourceus-real-estate-listings, cached 2026-08-31

ZIP market snapshot (33155)

Typical home value (ZHVI)$716,503
Typical rent (ZORI)$2,758/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$725,000
Down payment (20.0%)$145,000
Loan amount$580,000
Closing costs (5.0%)$36,250
Total cash to close$181,250
Rent (comp-derived)$2,998$35,970
Vacancy loss (8.0%)

Vacancy Loss

Gross Scheduled Rent × Vacancy Rate

Gross scheduled rent (annual) comp$35,970
Vacancy rate (assumption) assumption8.0%

$35,970 × 8.0% = $2,878

Effective gross income$2,758$33,092
Property tax (placeholder 1.9% of price)$1,148$13,775
Insurance (est. scaled by flood & wind risk)$773$9,280
HOA dues$0$0
Management (0.0% of EGI)$0$0
Maintenance (5.0% of GSR)$150$1,799
Total operating expenses$2,071$24,854
Net operating income (NOI)

Net Operating Income (NOI)

Effective Gross Income − Total Operating Expenses

Effective gross income derived$33,092
Total operating expenses derived$24,854

$33,092 − $24,854 = $8,239

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$580,000
Interest rate (avg 30yr rate) comp6.7%
Term (assumption) assumption30 years

$580,000 amortized at 6.7% over 30 years = $3,727/mo

CapEx reserve (5.0% of GSR)$150$1,799
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$8,239
Annual debt service derived$44,727
Annual CapEx reserve assumption$1,799
Annual PMI assumption$0

($8,239 − $44,727 − $1,799 − $0) ÷ 12 = -$3,191

Cap rate

Cap Rate

NOI ÷ Purchase Price

NOI derived$8,239
Purchase price data$725,000

$8,239 ÷ $725,000 = 1.1%

Cash-on-cash

Cash-on-Cash Return

Annual Cash Flow ÷ Total Cash Invested

Annual cash flow derived-$38,286
Total cash to close derived$181,250

-$38,286 ÷ $181,250 = -21.1%

DSCR

Debt Service Coverage Ratio (DSCR)

NOI ÷ Annual Debt Service

NOI derived$8,239
Annual debt service derived$44,727

$8,239 ÷ $44,727 = 0.18

Rent-to-price (1% rule)

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

(Gross Scheduled Rent ÷ 12) ÷ Purchase Price

Gross scheduled rent (annual) comp$35,970
Purchase price data$725,000

($35,970 ÷ 12) ÷ $725,000 = 0.4%

Gross rent multiplier

Gross Rent Multiplier (GRM)

Purchase Price ÷ Gross Scheduled Rent

Purchase price data$725,000
Gross scheduled rent (annual) comp$35,970

$725,000 ÷ $35,970 = 20.2

Operating expense ratio

Operating Expense Ratio

Total Operating Expenses ÷ Effective Gross Income

Total operating expenses derived$24,854
Effective gross income derived$33,092

$24,854 ÷ $33,092 = 75.1%

Break-even occupancy

Break-Even Occupancy

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

Total operating expenses derived$24,854
Annual debt service derived$44,727
Annual PMI assumption$0
Gross scheduled rent (annual) comp$35,970

($24,854 + $44,727 + $0) ÷ $35,970 = 193.4%

Comparables

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

AddressTypeBedsBathsSqftAsking rentListedDays on market
single_family21967$2,9952026-08-13
single_family211,416$2,8002026-08-05
single_family21850$2,1002026-07-27
single_family211,240$3,0002026-07-20
single_family22901$3,9502026-07-16
single_family221,000$4,4002026-06-19

5730 SW 42nd Ter

South Miami, 33155 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage967
Listed2026-08-13
Days on market

Asking rent: $2,995

View on Zillow →

6131 Coral Way Unit 1

Miami, 33155 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage1,416
Listed2026-08-05
Days on market

Asking rent: $2,800

View on Zillow →

2152 SW 72nd Ave Unit A

Miami, 33155 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage850
Listed2026-07-27
Days on market

Asking rent: $2,100

View on Zillow →

6225 SW 26th St

Miami, 33155 · rent comp

Bedrooms / bathrooms2 bd / 1 ba
Square footage1,240
Listed2026-07-20
Days on market

Asking rent: $3,000

View on Zillow →

5490 SW 57th Ave

Miami, 33155 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage901
Listed2026-07-16
Days on market

Asking rent: $3,950

View on Zillow →

4712 SW 64th Ct

Miami, 33155 · rent comp

Bedrooms / bathrooms2 bd / 2 ba
Square footage1,000
Listed2026-06-19
Days on market

Asking rent: $4,400

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
6230 SW 27th Stsingle_family221,411$945,0002026-07-23
5730 SW 42nd Tersingle_family21936$603,8972026-06-26
5900 SW 34th Stsingle_family211,816$2,254,0002026-06-18
6201 SW 20th Stsingle_family211,378$500,0002026-05-28
6790 SW 25th Tersingle_family211,059$555,0002026-05-05
5747 SW 55th Stsingle_family221,447$855,0002026-05-01
6130 SW 46th Tersingle_family211,136$770,0002026-04-10
6766 SW 25th Tersingle_family221,200$550,0002026-04-08
2217 Red Rdsingle_family211,792$925,0002026-04-06
2330 SW 58th Avesingle_family221,175$480,0002026-03-11
6756 SW 39th Tersingle_family211,156$450,0002026-03-10
6411 SW 44th Stsingle_family211,846$602,4002026-02-05
6490 SW 37th Stsingle_family21984$706,1002026-01-29
6047 SW 34th Stsingle_family221,390$1,125,0002026-01-14
3031 SW 64th Avesingle_family212,340$985,0002025-12-29

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
7829 Miller Dr Apt B205condos21840$199,999
4600 SW 67th Ave Apt 243condos22988$339,000
6845 SW 45th Ln Apt 10condos231,000$435,000
6410 SW 39th Stsingle_family21928$650,000
5555 Ludlam Rd Unit 41condos231,007$499,900
6447 SW 32nd Stsingle_family211,330$650,000
4863 SW 71st Pltownhomes231,552$775,000
6507 SW 39th Tersingle_family211,018$699,990

10-year hold projection

IRR-4.2%
Equity multiple0.31x
Total return (10yr)-$30,813
YearProperty valueNOICash flowLoan balanceEquity
1$746,750$8,239-$38,286$573,711$173,039
2$769,153$8,610-$37,960$566,991$202,161
3$792,227$8,996-$37,620$559,809$232,418
4$815,994$9,396-$37,267$552,134$263,860
5$840,474$9,812-$36,900$543,932$296,542
6$865,688$10,244-$36,518$535,167$330,521
7$891,659$10,692-$36,121$525,799$365,859
8$918,408$11,156-$35,708$515,789$402,619
9$945,961$11,639-$35,279$505,091$440,870
10$974,339$12,139-$34,834$493,658$480,681
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.