Miami-Dade County property record for 731 S Mashta Dr, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 3,481 sqft · built 1959 |
| Lot Size | 0.23 acres (10,000 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $512,000 (Apr 1995) |
| Tax Bill | $15,407 (2025) |
| Deeds & Mortgages | Feb 2022 Transfer |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-008-0220 |
| Primary APN | 24-5205-008-0220 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 1 Story |
| Building Area | 3,481 sqft Living Area |
| Gross Area | 3,689 sqft |
| 1st Floor Area | 3,481 sqft |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1997 |
| Exterior Material | Concrete Block |
| Construction Type | Concrete Block |
| Lot Area | 10,000 sqft (0.23 acres) |
| Lot Dimensions | 100 ft deep x 100 ft wide |
| Patio Area | 436 sqft |
| Street Address | 731 S MASHTA DR |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-1736 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 2001 |
| Legal Description | 5-6 55 42 MASHTA ISLAND PB 60-93 LOT 15BLK 2 LOT SIZE100.000 X 100 OR 16755-3414 0495 1 |
| Legal Range | 42E |
| Legal Township | 55S |
| Legal Section | 05 |
| Legal Subdivision | MASHTA ISLAND |
| Legal Block | 2 |
| Legal Lot Number | 15 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 1 |
| Census Block | 1023 |
| Census Tract | 4602 |
731 S Mashta Dr is owner-occupied and held in a trust since February 2022.
Source: Miami-Dade County records, as of October 21, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 731 S MASHTA DR, KEY BISCAYNE, FL 33149-1736 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 20, 1995 · Amount on File |
| Deed Sale | Apr 20, 1995 · Amount on File |
| Deed Book / Page | 16755 / 3414 |
| Last Transfer Date | Feb 11, 2022 |
| Transfer Doc | 0000137202 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | DADE FL |
| Recording Date | Feb 15, 2022 |
| Property Address | 731 S MASHTA DR, KEY BISCAYNE, FL 33149-1736 |
| Document Number | 0000137202 |
| Book / Page | 33021 / 4468 |
| Map Reference | MB 60 PG 93 |
| Instrument Date | Feb 11, 2022 |
| Instrument | 2022R0137202 |
| Transaction Type | Transfer |
| Record Updated | Apr 2, 2024 |
| Title Company | ATTORNEY ONLY, ATTORNEY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 731 S MASHTA DR, KEY BISCAYNE, FL 33149-1736 |
The 2025 property tax bill for 731 S Mashta Dr was $15,407 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 | $15,407.00 Homeowner's exemption | $914,365 | $3,479,919 Land $3,100,000 Building $379,919 |
| 2023 | $14,832.00 (+7.24%) Homeowner's exemption | $862,715 (+3%) | $3,206,201 (+33.22%) Land $2,850,000 Building $356,201 |
| 2022 | $13,831.00 Homeowner's exemption | $837,588 | $2,406,786 Land $2,050,000 Building $356,786 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 731 S Mashta 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 | 10.0 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.
The area around 731 S Mashta Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 10 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 1,200 / 35 |
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