104 W Mashta Dr, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 104 W Mashta Dr, Key Biscayne, FL 33149

Property Summary

Property Type	Single Family Home
Details	4 bd · 6.5 ba · 3,865 sqft · built 2018
Lot Size	0.172 acres (7,500 sqft)
Owner	Individual Name on File
Last Sale	$3,900,000 (Nov 2021)
Tax Bill	$61,268 (2025)
Deeds & Mortgages	Nov 2021 Sale & Mortgage
Flood Zone	Zone AE (high risk)
APN	`24-5205-001-3200`

Property Details

APN / Parcel Number

Primary APN	`24-5205-001-3200`

Interior

Bedrooms	4 Beds
Full Baths	6.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	3,865 sqft Living Area
Gross Area	4,933 sqft

Exterior

Year Built	Built 2018
Effective Year Built	Effective 2018
Exterior Material	Concrete Block/Stucco
Construction Type	Concrete Block
Roof Type	Rigid Frame Bar Joist
Lot Area	7,500 sqft (0.172 acres)
Lot Dimensions	100 ft deep x 75 ft wide
Patio Area	220 sqft

Location & Zoning

Street Address	104 W MASHTA DR
City	KEY BISCAYNE
State	FL
Zip	33149-2418
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	0100
Legal Description	BISCAYNE KEY ESTS PB 50-61 LOT 21BLK 18 LOT SIZE 75.000 X 100 OR 16626-1423 1094 5 COC 24207-2799 01 2006 5
Legal Range	42E
Legal Township	55S
Legal Section	05
Legal Subdivision	BISCAYNE KEY ESTS
Legal Block	18
Legal Lot Number	21
Jurisdiction	DADE FL
Township / Civil Division	KEY BISCAYNE
Census Block Group	3
Census Block	3025
Census Tract	4602

Owner

104 W Mashta Dr is owned and occupied by an individual who bought it in November 2021.

Source: Miami-Dade County records, as of October 21, 2026

Owner of Record	Individual Name on File
Mailing Address	104 W MASHTA DR, KEY BISCAYNE, FL 33149-2418
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 22, 2021 · Amount on File
Deed Sale	Nov 22, 2021 · Amount on File
Prior Sale	Mar 26, 2014 · Amount on File
Deed Document Number	2021879346
Deed Book / Page	32864 / 3393
Prior Transfer Date	Jan 26, 2006
Prior Transfer Doc	0000124044
Record Updated	Oct 29, 2026

November 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	DADE FL
Recording Date	Nov 22, 2021
Property Address	104 W MASHTA DR, KEY BISCAYNE, FL 33149-2418
Document Number	0000879346
Book / Page	32864 / 3393
Map Reference	MB 50 PG 61
Instrument Date	Nov 12, 2021
Instrument	2021R0879346
Transaction Type	Transfer
Record Updated	Apr 2, 2024
Title Company	ATTORNEY ONLY, ATTORNEY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$23,400.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	232 ANDALUSIA AVE STE 300, 300, CORAL GABLES, FL 33134-5901

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	104 W MASHTA DR, MIAMI, FL 33149-2418

Mortgage

Document Number	0000003395
Date	Nov 22, 2021
Instrument	32864/3395

Lender

Name	GOLDMAN SACHS BANK USA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.85%
Type Change Date	Dec 1, 2031
Change Frequency	6 Months
Min Rate At Change	3%
Max Rate At Change	7.85%
Index	Other
Margin	3
Max Rate	7.85%

Tax Assessment & Valuation

The 2025 property tax bill for 104 W Mashta Dr was $61,268.

Source: Miami-Dade County assessment roll, as of October 21, 2026

Property Jurisdictions

Type	Name
State	Florida
County	Miami-Dade County
Municipality	Key Biscayne Village
Unified School District	Dade County School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$61,268.00	$3,856,785 Land $1,950,000 Building $1,906,785	$3,856,785 Land $1,950,000 Building $1,906,785
2023	$59,214.00 (+10.82%)	$3,672,353 (+11.57%) Land $1,725,000 Building $1,947,353	$3,672,353 (+11.57%) Land $1,725,000 Building $1,947,353
2022	$53,432.00	$3,291,387 Land $1,323,750 Building $1,967,637	$3,291,387 Land $1,323,750 Building $1,967,637

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 104 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	9.0 ft
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on File 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	Hurricane Irma, Sep 2017 · 69 claims Hurricane Katrina, Aug 2005 · 44 claims Hurricane Andrew, Aug 1992 · 565 claims

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

The area around 104 W 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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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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