Miami-Dade County property record for 451 N Mashta Dr, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 9 bd · 8 ba · 7,284 sqft · built 2006 |
| Lot Size | 0.364 acres (15,888 sqft) |
| Owner | Company Name on File |
| Last Sale | $6,800,000 (Sep 2016) |
| Tax Bill | $133,284 (2025) |
| Deeds & Mortgages | Mar 2018 Mortgage Feb 2017 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-017-0030 |
| Primary APN | 24-5205-017-0030 |
|---|
| Bedrooms | 9 Beds |
|---|---|
| Full Baths | 8 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 7,284 sqft Living Area |
| Gross Area | 9,044 sqft |
| Elevator | Elevator |
| Year Built | Built 2006 |
|---|---|
| Exterior Material | Other |
| Construction Type | Concrete |
| Lot Area | 15,888 sqft (0.364 acres) |
| Garage Area | 515 sqft |
| Pool Area | 36 sqft |
|---|---|
| Porch | Porch |
| Porch Area | 222 sqft |
| Patio Area | 685 sqft |
| Fence | Fence |
| Boat Access | Boat Access |
| Street Address | 451 N MASHTA DR |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-1717 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 2001 |
| Legal Description | 5 55 42 SMUGGLERS COVE PB 78-83 LOT 3 LOT SIZE 15888 SQ FT OR 15671-0648 0992 2 (2) COC 23091-0410 02 2005 2 |
| Legal Range | 42 |
| Legal Township | 55 |
| Legal Section | 05 |
| Legal Subdivision | SMUGGLERS COVE |
| Legal Lot Number | 3 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 4602 |
Source: Miami-Dade County assessment roll, as of July 1, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 201 S BISCAYNE BLVD STE 800, 800, MIAMI, FL 33131-4329 |
| Owner Type | Company |
| Date | Document |
|---|---|
| Mar 16, 2018 | Deed of Trust, Mortgage NORTHERN TR |
| Feb 22, 2017 | Deed of Trust, Mortgage NORTHERN TR |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 2, 2016 · Amount on Record |
| Deed Sale | Sep 2, 2016 · Amount on Record |
| Prior Sale | Jun 8, 2016 |
| Deed Document Number | 2016R0516854 |
| Deed Book / Page | 30217 / 2018 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 451 N MASHTA DR, KEY BISCAYNE, FL 33149-1717 |
| Document Number | 0000161481 |
| Instrument Date | Mar 16, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Mar 30, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 451 N MASHTA DR KEY BISCAYNE FL 331491717, KEY BISCAYNE, FL 33149-1717 |
| Document Number | 0000161481 |
|---|---|
| Date | Mar 19, 2018 |
| Book Page | 030901/003413 |
| Instrument | 161481 |
| Name | NORTHERN TR |
|---|---|
| Address | 50 S LA SALLE ST, CHICAGO, IL 60603-1008 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Mar 18, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.87% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 451 N MASHTA DR, KEY BISCAYNE, FL 33149-1717 |
| Document Number | 0000103667 |
| Book / Page | 030431 / 002062 |
| Instrument Date | Feb 22, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Mar 7, 2017 |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 451 N MASHTA DR KEY BISCAYNE FL 331491717, KEY BISCAYNE, FL 33149-1717 |
| Document Number | 0000103667 |
|---|---|
| Date | Feb 23, 2017 |
| Book Page | 030431/002062 |
| Instrument | 103667 |
| Name | NORTHERN TR |
|---|---|
| Address | 50 S LA SALLE ST, CHICAGO, IL 60603-1008 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Feb 22, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.87% |
Source: Miami-Dade County assessment roll, as of July 1, 2025
| 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 | $133,284.00 (+21.9%) | $9,564,892 (+29.45%) Land $7,546,800 Building $2,018,092 | $9,564,892 (+29.45%) Land $7,546,800 Building $2,018,092 |
| 2023 | $109,339.00 (+9.49%) | $7,389,017 (+7.07%) Land $5,672,016 Building $1,717,001 | $7,389,017 (+7.07%) Land $5,672,016 Building $1,717,001 |
| 2022 | $99,859.00 | $6,901,008 Land $5,163,600 Building $1,737,408 | $6,901,008 Land $5,163,600 Building $1,737,408 |
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 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.
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 | 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 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures