Miami-Dade County property record for 280 W Mashta Dr, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 4 ba · 2,340 sqft · built 1951 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $2,070,000 (Nov 2015) |
| Tax Bill | $22,469 (2025) |
| Deeds & Mortgages | Apr 2022 Mortgage Mar 2020 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-001-3030 |
| Primary APN | 24-5205-001-3030 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 4 Baths |
| Stories | 1 Story |
| Building Area | 2,340 sqft Living Area |
| Gross Area | 2,520 sqft |
| 1st Floor Area | 2,340 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1996 |
| Exterior Material | Concrete Block/Hollow Tile/Frame |
| Construction Type | Concrete Block |
| Lot Area | 7,500 sqft (0.172 acres) |
| Lot Dimensions | 100 ft deep x 75 ft wide |
| Porch | Porch |
| Porch Area | 62 sqft |
| Patio Area | 886 sqft |
| Street Address | 280 W MASHTA DR |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-2420 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 0100 |
| Legal Description | 5 & 6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 4 BLK 18 LOT SIZE 75.000 X 100 OR 18432-2402 0199 1 |
| Legal Range | 42E |
| Legal Township | 55S |
| Legal Section | 05 |
| Legal Subdivision | BISCAYNE KEY ESTS |
| Legal Block | 18 |
| Legal Lot Number | 4 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 3 |
| Census Block | 3025 |
| Census Tract | 4602 |
Source: Miami-Dade County records, as of October 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 280 W MASHTA DR, KEY BISCAYNE, FL 33149-2420 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Apr 6, 2022 | Deed of Trust, Mortgage · Conventional Mortgage HSBC BANK USA |
| Mar 18, 2020 | Deed of Trust, Mortgage · Conventional Mortgage HSBC BANK USA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 18, 2015 · Amount on Record |
| Deed Sale | Nov 18, 2015 · Amount on Record |
| Prior Sale | Jan 12, 1999 · Amount on Record |
| Deed Document Number | 2015736294 |
| Deed Book / Page | 29858 / 2871 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 280 W MASHTA DR, KEY BISCAYNE, FL 33149-2420 |
| Transaction Type | Mortgage |
| Record Updated | Apr 2, 2024 |
| Name | Verified Name |
|---|---|
| Address | 280 W MASHTA DR, KEY BISCAYNE, FL 33149-2420 |
| Document Number | 0000280163 |
|---|---|
| Date | Apr 6, 2022 |
| Book Page | 33112/734 |
| Instrument | 2022R0280163 |
| Name | HSBC BANK USA |
|---|---|
| Type | Bank |
| Address | NEW YORK, NY 10018 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.32% |
| Type Change Date | Apr 1, 2032 |
| Change Frequency | 6 Months |
| Min Rate At Change | 3% |
| Max Rate At Change | 8.33% |
| Index | Other |
| Margin | 3 |
| Max Rate | 8.33% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 280 W MASHTA DR, KEY BISCAYNE, FL 33149-2420 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000175463 |
|---|---|
| Date | Mar 18, 2020 |
| Book Page | 31859/2170 |
| Instrument | 2020R0175463 |
| Name | HSBC BANK USA |
|---|---|
| Type | Bank |
| Address | NEW YORK, NY 10018 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.2% |
| Type Change Date | Apr 1, 2027 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 8.02% |
| Index | 1-Year LIBOR |
| Max Rate | 8.02% |
Source: Miami-Dade County assessment roll, as of October 21, 2026
| Type | Name |
|---|---|
| State | Florida |
| County | Miami-Dade County |
| Municipality | Key Biscayne Village |
| Unified School District | Dade County School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $22,469.00 (+3.76%) Homeowner's exemption | $1,382,405 (+5.99%) | $2,319,479 (+10.23%) Land $1,950,000 Building $369,479 |
| 2023 | $21,654.00 (+5%) Homeowner's exemption | $1,304,317 (+3%) | $2,104,244 (+23.21%) Land $1,725,000 Building $379,244 |
| 2022 | $20,622.00 Homeowner's exemption | $1,266,328 | $1,707,876 Land $1,323,750 Building $384,126 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective January 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 489 individual policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 548 units insured incl. 59 condo units |
| Nearby Flood Claims | 790 (1979–2021) |
| Most Recent Claim | Oct 2021 · rainfall accumulation |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 97.6% of Florida |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | MDWASA - MAIN SYSTEM serves 2,377,460 people · EPA ID FL4130871 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Dec 2023 |
| Lead | 3 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 6 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 247 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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