Miami-Dade County property record for 1090 Mariner Dr, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,143 sqft · built 1979 |
| Lot Size | 0.603 acres (26,250 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,300,000 (Mar 2000) |
| Tax Bill | $49,934 (2025) |
| Deeds & Mortgages | Aug 2017 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-011-0170 |
| Primary APN | 24-5205-011-0170 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 2 Stories |
| Building Area | 2,143 sqft Living Area |
| Gross Area | 5,324 sqft |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1989 |
| Exterior Material | Concrete Block/Hollow Tile/Frame |
| Construction Type | Frame |
| Lot Area | 26,250 sqft (0.603 acres) |
| Lot Dimensions | 158 ft deep x 155 ft wide |
| Patio Area | 594 sqft |
| Boat Access | Boat Access |
| Street Address | 1090 MARINER DR |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-2474 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 2000 |
| Legal Description | 5 55 42 CAPE FLA SUB SEC 2PB 70-67 LOT 10BLK 6 & PROP INT IN & TO WATERWAY LOT SIZE26250 SQ FT OR 19047-1709 03 2000 1 |
| Legal Range | 42E |
| Legal Township | 55S |
| Legal Section | 05 |
| Legal Subdivision | CAPE FLA SUB |
| Legal Block | 6 |
| Legal Lot Number | 10 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 4602 |
1090 Mariner Dr is owned and occupied by two individuals who bought it in March 2000.
Source: Miami-Dade County records, as of October 21, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1090 MARINER DR, KEY BISCAYNE, FL 33149-2474 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 30, 2000 · Amount on File |
| Deed Sale | Mar 30, 2000 · Amount on File |
| Prior Sale | Apr 8, 1996 · Amount on File |
| Deed Book / Page | 19047 / 1709 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 1090 MARINER DR, KEY BISCAYNE, FL 33149-2474 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000462599 |
|---|---|
| Date | Aug 10, 2017 |
| Book Page | 30649/1267 |
| Instrument | 2017R0462599 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Address | O FALLON, MO 63368 |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.62% |
| Type Change Date | Sep 1, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.62% |
| Index | 1-Year LIBOR |
| Max Rate | 7.62% |
The 2025 property tax bill for 1090 Mariner Dr was $49,934 with a homeowner's exemption.
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 | $49,934.00 Homeowner's exemption | $3,139,923 | $11,650,626 Land $11,221,875 Building $428,751 |
| 2023 | $48,171.00 (+4.17%) Homeowner's exemption | $2,962,556 (+3%) | $8,869,305 (+9.27%) Land $8,434,125 Building $435,180 |
| 2022 | $46,242.00 Homeowner's exemption | $2,876,268 | $8,116,519 Land $7,678,125 Building $438,394 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1090 Mariner Dr in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
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 | 9.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 201 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 201 in force |
| Nearby Flood Claims | 312 (1979–2024) |
| Claims Outside the SFHA | 1 of 312 |
| Most Recent Claim | Jun 2024 · 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.
Wildfire risk around 1090 Mariner Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 98.7% 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 209 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 · Fiber in parts of the area | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Blue Stream.
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