210 Sea View Dr Apt 207
Key Biscayne, FL 33149 · condos · For Sale · 10 days on market
Asking price$579,000
1 beds 2 baths 875 sqft
Listed by David Deleon · COMPASS
Typecondos
Built1972
Price / sqft$662
Est. value (own analysis)$630,236
Rent estimate (own analysis)$3,350/mo
HOA$705/mo
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Statusfor_sale
Listed date2026-08-23
Removed date—
MLSMiamiMLS #A12076248
Coordinates25.68560, -80.16030
Address210 Sea View Dr Apt 207
CityKey Biscayne
StateFL
Zip33149
Listing ID6189023951
Sourceus-real-estate-listings, cached 2026-08-28
ZIP market snapshot (33149)
Typical home value (ZHVI)$1,692,135
Typical rent (ZORI)$7,910/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)
| Acquisition (one-time, not monthly/yearly) | |
| Purchase price | $579,000 |
| Down payment (20.0%) | $115,800 |
| Loan amount | $463,200 |
| Closing costs (5.0%) | $28,950 |
| Total cash to close | $144,750 |
| Income | |
| Rent (comp-derived) | $3,350$40,200 |
| Vacancy loss (8.0%) | |
| Effective gross income | $3,082$36,984 |
| Operating expenses | |
| Property tax (placeholder 1.9% of price) | $917$11,001 |
| Insurance (placeholder 0.8% of price) | $386$4,632 |
| HOA dues | $705$8,460 |
| Management (0.0% of EGI) | $0$0 |
| Maintenance (5.0% of GSR) | $168$2,010 |
| Total operating expenses | $2,175$26,103 |
| Net operating income (NOI) | |
| Debt service & reserves | |
| Debt service (6.66%, avg 30yr rate as of 2026-08-27, 30yr amortizing) | |
| CapEx reserve (5.0% of GSR) | $168$2,010 |
| Mortgage insurance (PMI) (0.0% of loan, not required — down payment ≥ 20%) | $0$0 |
| Cash flow |
Cap rate
Cash-on-cash
DSCR
Rent-to-price (1% rule)
Gross rent multiplier
Operating expense ratio
Break-even occupancy
Comparables
Same ZIP. Real active rental listings, used to derive the rent estimate above.
| Address | Type | Beds | Baths | Sqft | Asking rent | Listed | Days on market |
|---|---|---|---|---|---|---|---|
| condos | 1 | 1 | 608 | $2,400 | 2026-06-17 | — | |
| condos | 1 | 2 | 725 | $3,000 | 2026-08-05 | — | |
| condos | 1 | 2 | 972 | $3,150 | 2026-05-08 | — | |
| condos | 1 | 1 | 676 | $3,250 | 2026-08-25 | — | |
| condos | 1 | 2 | 1,103 | $4,300 | 2026-07-29 | — | |
| condos | 1 | 2 | 1,059 | $5,000 | 2026-04-30 | — | |
| condos | 1 | 2 | 744 | $3,350 | 2026-06-22 | — | |
| condos | 1 | 2 | 895 | $4,000 | 2026-07-02 | — | |
| apartment | 1 | 2 | 725 | $3,250 | 2026-04-17 | — | |
| condos | 1 | 2 | 895 | $4,500 | 2026-08-10 | — | |
| condos | 1 | 2 | 895 | $5,000 | 2026-08-20 | — | |
| condos | 1 | 2 | 972 | $3,550 | 2026-01-07 | — | |
| condos | 1 | 2 | 875 | $3,350 | 2026-06-03 | — | |
| condos | 1 | 2 | 840 | $5,000 | 2026-08-04 | — | |
| condos | 1 | 2 | 1,009 | $5,500 | 2026-07-16 | — | |
| condos | 1 | 2 | 875 | $3,350 | — | — | |
| condos | 1 | 1 | 676 | $2,799 | 2026-09-01 | — |
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.
| Address | Type | Beds | Baths | Living sqft | Sale price | Sale date |
|---|---|---|---|---|---|---|
| 255 Sunrise Dr Apt 207 | condos | 1 | 1 | 676 | $480,000 | 2026-08-03 |
| 155 Ocean Lane Dr Apt 707 | condos | 1 | 2 | 895 | $635,000 | 2026-07-30 |
| 100 Ocean Lane Dr Apt 202 | condos | 1 | 2 | 870 | $512,500 | 2026-07-24 |
| 300 Sunrise Dr Apt 1B | condos | 1 | 1 | 590 | $430,000 | 2026-07-10 |
| 455 Grand Bay Dr Unit 618-19 | condos | 1 | 1 | 791 | $1,605,000 | 2026-07-01 |
| 177 Ocean Lane Dr Apt 302 | condos | 1 | 2 | 840 | $780,000 | 2026-06-05 |
| 177 Ocean Lane Dr Apt 703 | condos | 1 | 2 | 840 | $854,000 | 2026-05-28 |
| 77 Crandon Blvd Apt 5B | condos | 1 | 2 | 744 | $480,000 | 2026-05-26 |
| 101 Ocean Lane Dr Apt 205 | condos | 1 | 2 | 972 | $530,000 | 2026-04-16 |
| 290 Sunrise Dr Unit 2L | condos | 1 | 1 | 610 | $490,000 | 2026-04-08 |
| 325 Fernwood Rd Apt 5 | condos | 1 | 1 | 474 | $395,000 | 2026-02-02 |
| 155 Ocean Lane Dr Apt 706 | condos | 1 | 2 | 895 | $637,000 | 2026-01-20 |
| 55 Ocean Lane Dr Apt 1026 | condos | 1 | 2 | 972 | $550,000 | 2025-10-31 |
| 200 Ocean Lane Dr Apt 305 | condos | 1 | 2 | 1,259 | $920,000 | 2025-09-11 |
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.
| Address | Type | Beds | Baths | Sqft | Asking price | Days on market |
|---|---|---|---|---|---|---|
| 200 Galen Dr Apt 202 | condos | 1 | 2 | 730 | $399,000 | — |
| 255 Sunrise Dr Apt 107 | condos | 1 | 1 | 608 | $459,000 | — |
| condos | 1 | 2 | 895 | $845,000 | — | |
| 55 Ocean Lane Dr Apt 3030 | condos | 1 | 2 | 972 | $580,000 | — |
| 155 Ocean Lane Dr Apt 302 | condos | 1 | 2 | 895 | $749,000 | — |
| 200 Ocean Lane Dr Apt PB4 | condos | 1 | 1 | 1,217 | $1,400,000 | — |
| 100 Ocean Lane Dr Apt 303 | condos | 1 | 2 | 870 | $505,000 | — |
| 251 Galen Dr Apt 302 | condos | 1 | 2 | 854 | $480,000 | — |
10-year hold projection
IRR-2.3%
Equity multiple0.61x
Total return (10yr)$19,903
| Year | Property value | NOI | Cash flow | Loan balance | Equity |
|---|---|---|---|---|---|
| 1 | $596,370 | $10,881 | -$26,849 | $458,178 | $138,192 |
| 2 | $614,261 | $11,338 | -$26,442 | $452,811 | $161,450 |
| 3 | $632,689 | $11,812 | -$26,020 | $447,075 | $185,614 |
| 4 | $651,670 | $12,303 | -$25,581 | $440,946 | $210,724 |
| 5 | $671,220 | $12,813 | -$25,125 | $434,395 | $236,824 |
| 6 | $691,356 | $13,341 | -$24,652 | $427,395 | $263,961 |
| 7 | $712,097 | $13,889 | -$24,161 | $419,914 | $292,183 |
| 8 | $733,460 | $14,457 | -$23,652 | $411,920 | $321,540 |
| 9 | $755,464 | $15,046 | -$23,123 | $403,376 | $352,088 |
| 10 | $778,128 | $15,657 | -$22,573 | $394,246 | $383,882 |
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.