8101 Biscayne Blvd Unit R506

Miami, FL 33138 · condos · For Sale · 84 days on market
Asking price$415,000
0 beds 1 baths 879 sqft
View on Realtor.com →
Listed by Chester Dowdy · RE/MAX Advance Realty II
Typecondos
Built1968
Price / sqft$472
Est. value (own analysis)$451,968
Rent estimate (own analysis)$1,500/mo
HOA$715/mo
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Neighborhood

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Statusfor_sale
Listed date2026-06-10
Removed date
MLSMiamiMLS #A12034944
Coordinates25.84979, -80.18401
Address8101 Biscayne Blvd Unit R506
CityMiami
StateFL
Zip33138
Listing ID5549472265
Sourceus-real-estate-listings, cached 2026-08-30

ZIP market snapshot (33138)

Typical home value (ZHVI)$806,988
Typical rent (ZORI)$2,367/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$415,000
Down payment (20.0%)$83,000
Loan amount$332,000
Closing costs (5.0%)$20,750
Total cash to close$103,750
Rent (comp-derived)$1,500$18,000
Vacancy loss (8.0%)

Vacancy Loss

Gross Scheduled Rent × Vacancy Rate

Gross scheduled rent (annual) comp$18,000
Vacancy rate (assumption) assumption8.0%

$18,000 × 8.0% = $1,440

Effective gross income$1,380$16,560
Property tax (placeholder 1.9% of price)$657$7,885
Insurance (placeholder 0.8% of price)$277$3,320
HOA dues$715$8,580
Management (0.0% of EGI)$0$0
Maintenance (5.0% of GSR)$75$900
Total operating expenses$1,724$20,685
Net operating income (NOI)

Net Operating Income (NOI)

Effective Gross Income − Total Operating Expenses

Effective gross income derived$16,560
Total operating expenses derived$20,685

$16,560 − $20,685 = -$4,125

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$332,000
Interest rate (avg 30yr rate) comp6.7%
Term (assumption) assumption30 years

$332,000 amortized at 6.7% over 30 years = $2,134/mo

CapEx reserve (5.0% of GSR)$75$900
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-$4,125
Annual debt service derived$25,602
Annual CapEx reserve assumption$900
Annual PMI assumption$0

(-$4,125 − $25,602 − $900 − $0) ÷ 12 = -$2,552

Cap rate

Cap Rate

NOI ÷ Purchase Price

NOI derived-$4,125
Purchase price data$415,000

-$4,125 ÷ $415,000 = -1.0%

Cash-on-cash

Cash-on-Cash Return

Annual Cash Flow ÷ Total Cash Invested

Annual cash flow derived-$30,627
Total cash to close derived$103,750

-$30,627 ÷ $103,750 = -29.5%

DSCR

Debt Service Coverage Ratio (DSCR)

NOI ÷ Annual Debt Service

NOI derived-$4,125
Annual debt service derived$25,602

-$4,125 ÷ $25,602 = -0.16

Rent-to-price (1% rule)

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

(Gross Scheduled Rent ÷ 12) ÷ Purchase Price

Gross scheduled rent (annual) comp$18,000
Purchase price data$415,000

($18,000 ÷ 12) ÷ $415,000 = 0.4%

Gross rent multiplier

Gross Rent Multiplier (GRM)

Purchase Price ÷ Gross Scheduled Rent

Purchase price data$415,000
Gross scheduled rent (annual) comp$18,000

$415,000 ÷ $18,000 = 23.1

Operating expense ratio

Operating Expense Ratio

Total Operating Expenses ÷ Effective Gross Income

Total operating expenses derived$20,685
Effective gross income derived$16,560

$20,685 ÷ $16,560 = 124.9%

Break-even occupancy

Break-Even Occupancy

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

Total operating expenses derived$20,685
Annual debt service derived$25,602
Annual PMI assumption$0
Gross scheduled rent (annual) comp$18,000

($20,685 + $25,602 + $0) ÷ $18,000 = 257.2%

Comparables

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

AddressTypeBedsBathsSqftAsking rentListedDays on market
apartment01618$2,2002026-02-05
apartment01650$1,4952026-03-31
apartment01698$1,500

7920 NE 2nd Ave

Miami, 33138 · rent comp

Bedrooms / bathrooms0 bd / 1 ba
Square footage618
Listed2026-02-05
Days on market

Asking rent: $2,200

View on Zillow →

500 NE 78th St

Miami, 33138 · rent comp

Bedrooms / bathrooms0 bd / 1 ba
Square footage650
Listed2026-03-31
Days on market

Asking rent: $1,495

View on Zillow →

575 NE 82nd St Apt 9

Miami, 33138 · rent comp

Bedrooms / bathrooms0 bd / 1 ba
Square footage698
Listed
Days on market

Asking rent: $1,500

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
8101 Biscayne Blvd Unit R509condos011,128$580,0002026-05-20
8101 Biscayne Blvd Unit R513condos01534$290,0002026-05-15
880 NE 69th St Apt 14Hcondos01580$180,0002026-03-25

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
8101 Biscayne Blvd Unit R410condos01533$315,000
544 NE 62nd St Unit 544-8condos01338$155,000
700 NE 63rd St Apt D506condos01571$244,900
770 NE 69th St Unit 1Ccondos01470$240,000
7645 NE 1st Avesingle_family01,557$474,900
700 NE 63rd St Apt D606condos01571$225,000
770 NE 69th St Unit 1Econdos01470$159,990
645 NE 77th St Apt 16condos01360$159,900

10-year hold projection

IRR-9.6%
Equity multiple-0.64x
Total return (10yr)-$115,858
YearProperty valueNOICash flowLoan balanceEquity
1$427,450-$4,125-$30,627$328,400$99,050
2$440,274-$4,145-$30,670$324,554$115,720
3$453,482-$4,164-$30,711$320,443$133,039
4$467,086-$4,180-$30,751$316,049$151,037
5$481,099-$4,194-$30,790$311,354$169,744
6$495,532-$4,206-$30,826$306,337$189,195
7$510,398-$4,215-$30,861$300,975$209,422
8$525,710-$4,221-$30,893$295,245$230,464
9$541,481-$4,225-$30,924$289,122$252,359
10$557,725-$4,226-$30,952$282,577$275,148
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.