Miami-Dade County property record for 425 W Mashta Dr, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 9 ba · 7,850 sqft · built 2025 |
| Lot Size | 0.393 acres (17,112 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $7,500,000 (Jun 2021) |
| Tax Bill | $70,441 (2025) |
| Deeds & Mortgages | Jul 2022 Mortgage Jun 2021 Sale & Mortgage + 1 more |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-001-3430 |
| Primary APN | 24-5205-001-3430 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 9 Baths |
| Half Baths | 2 Half Baths |
| Stories | 2 Stories |
| Building Area | 7,850 sqft Living Area |
| Gross Area | 10,156 sqft |
| Year Built | Built 2025 |
|---|---|
| Effective Year Built | Effective 2025 |
| Exterior Material | Concrete Block/Stucco |
| Construction Type | Concrete Block |
| Lot Area | 17,112 sqft (0.393 acres) |
| Pool Type | Pool with Hot Tub/Spa |
|---|---|
| Patio Area | 357 sqft |
| Boat Access | Boat Access |
| Total Buildings | 2 Buildings |
| Street Address | 425 W MASHTA DR |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-1749 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 2000 |
| Legal Description | 5-6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 22 LESS BEG NWLY COR ELY ALG N/L 191.66FT SLY ALG E/L 94.11FT WLY 193.52FT NLY ALG W/L 60FT TO POB BLK 19 LOT SIZE17112 SQ FT OR 17178-4033-35 0495 5 COC 22611-1504 08 2004 1 |
| Legal Range | 42E |
| Legal Township | 55S |
| Legal Section | 05 |
| Legal Subdivision | BISCAYNE KEY ESTS |
| Legal Block | 1 |
| Legal Lot Number | 22 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 4602 |
425 W Mashta Dr is owner-occupied and held in a trust since June 2021.
Source: Miami-Dade County records, as of October 21, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 425 W MASHTA DR, KEY BISCAYNE, FL 33149-1749 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jul 21, 2022 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Jun 25, 2021 | Warranty Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Nov 1, 2019 | Loan Modification, Mortgage IBERIABANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 25, 2021 · Amount on File |
| Deed Sale | Jun 25, 2021 · Amount on File |
| Prior Sale | Aug 26, 2004 · Amount on File |
| Deed Document Number | 2021452928 |
| Deed Book / Page | 32583 / 3367 |
| Transfer Doc | 1717004033 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 425 W MASHTA DR, KEY BISCAYNE, FL 33149-1749 |
| Transaction Type | Mortgage |
| Record Updated | Apr 2, 2024 |
| Name | Verified Name |
|---|---|
| Address | 425 W MASHTA DR, KEY BISCAYNE, FL 33149-1749 |
| Document Number | 0000582059 |
|---|---|
| Date | Jul 21, 2022 |
| Book Page | 33300/3024 |
| Instrument | 2022R0582059 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | DOWNERS GROVE, IL 60515 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.75% |
| Type Change Date | Aug 1, 2032 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 9.75% |
| Index | Other |
| Max Rate | 9.75% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | DADE FL |
| Recording Date | Jun 25, 2021 |
| Property Address | 425 W MASHTA DR, KEY BISCAYNE, FL 33149-1749 |
| Document Number | 0000452928 |
| Book / Page | 32583 / 3367 |
| Map Reference | MB 50 PG 61 |
| Instrument Date | Jun 10, 2021 |
| Instrument | 2021R0452928 |
| Transaction Type | Transfer |
| Record Updated | Apr 2, 2024 |
| Title Company | SOUTH FL TITLE GROUP INC, SOUTH FLORIDA TTL GROUP INC |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $45,000.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 1300 BRICKELL BAY DR APT 2902, 2902, MIAMI, FL 33131-3398 |
| Name | Verified Name |
|---|---|
| Address | 425 W MASHTA DR, KEY BISCAYNE, FL 33149-1749 |
| Document Number | 0000003370 |
|---|---|
| Date | Jun 25, 2021 |
| Instrument | 32583/3370 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2051 |
| Adjustable | Adjustable Rate Rider |
|---|
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 425 W MASHTA DR, KEY BISCAYNE, FL 33149-1749 |
| Document Number | 0000003423 |
| Instrument Date | Nov 1, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Feb 12, 2020 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|---|
| Address | 425 W MASHTA DR KEY BISCAYNE FL 331491749, KEY BISCAYNE, FL 33149-1749 |
| Document Number | 0000003423 |
|---|---|
| Date | Jan 2, 2020 |
| Book Page | 031753/002340 |
| Instrument | 3423 |
| Name | IBERIABANK |
|---|---|
| Type | Bank |
| Address | PO BOX 12440, NEW IBERIA, LA 70562-2440 |
| Amount | Amount on Record |
|---|---|
| Term | 60 Months |
| Due | Jan 1, 2025 |
| Rate | 2.25% |
|---|
The 2025 property tax bill for 425 W Mashta Dr was $70,441.
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 | $70,441.00 | $4,450,519 | $6,859,507 Land $6,844,800 Building $14,707 |
| 2023 | $89,019.00 (+3.76%) Homeowner's exemption | $5,525,315 (+3%) | $6,828,854 (+16.45%) Land $5,174,669 Building $1,654,185 |
| 2022 | $85,795.00 Homeowner's exemption | $5,364,384 | $5,864,384 Land $4,192,440 Building $1,671,944 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 425 W 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.
Wildfire risk around 425 W Mashta Dr is low, with 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 96% of the US · lower than 96% of Florida |
|---|---|
| Wildfire Likelihood | 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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