310 Island Dr, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 310 Island Dr, Key Biscayne, FL 33149

Property Summary

Property Type	Single Family Home
Details	5 bd · 5.5 ba · 5,890 sqft · built 2023
Lot Size	0.294 acres (12,800 sqft)
Owner	2 Individual Names on File
Last Sale	$3,750,000 (Jul 2020)
Tax Bill	$89,437 (2025)
Deeds & Mortgages	Dec 2019 Loan Modification Jun 2018 Loan Modification + 1 more
Flood Zone	Zone AE (high risk)
APN	`24-5205-011-0010`

Property Details

APN / Parcel Number

Primary APN	`24-5205-011-0010`

Interior

Bedrooms	5 Beds
Full Baths	5.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	5,890 sqft Living Area
Gross Area	7,240 sqft

Exterior

Year Built	Built 2023
Effective Year Built	Effective 2023
Exterior Material	Concrete Block/Stucco
Construction Type	Concrete Block
Lot Area	12,800 sqft (0.294 acres)
Lot Dimensions	160 ft deep x 80 ft wide

Exterior Amenities

Pool Type	Pool with Hot Tub/Spa
Pool Area	96 sqft
Patio Area	814 sqft
Boat Access	Boat Access

Location & Zoning

Street Address	310 ISLAND DR
City	KEY BISCAYNE
State	FL
Zip	33149-2414
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 A BLK 2 & PROP INT IN & TO WATERWAY LOT SIZE 80.000 X 160 OR 16519-2998 0594 4 COC 26383-4908 04 2008 5
Legal Range	42E
Legal Township	55S
Legal Section	05
Legal Subdivision	CAPE FLA SUB
Legal Block	2
Legal Lot Number	A
Jurisdiction	DADE FL
Township / Civil Division	KEY BISCAYNE
Census Block Group	1
Census Block	1020
Census Tract	4602

Owner

310 Island Dr is owned and occupied by two individuals who bought it in July 2020.

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	310 ISLAND DR, KEY BISCAYNE, FL 33149-2414
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 23, 2019	Loan Modification, Mortgage EASTERN FIN'L MTG
Jun 15, 2018	Loan Modification, Mortgage EASTERN FIN'L MTG
Jun 23, 2017	Loan Modification, Mortgage EASTERN FIN'L MTG

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 10, 2020 · Amount on File
Deed Sale	Jul 10, 2020 · Amount on File
Deed Document Number	2020377839
Deed Book / Page	32002 / 1699
Prior Transfer Date	Jun 16, 2015
Prior Transfer Doc	0000388646
Record Updated	Oct 29, 2026

December 2019: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	DADE FL
Property Address	310 ISLAND DR, KEY BISCAYNE, FL 33149-2414
Document Number	0000794028
Instrument Date	Dec 23, 2019
Transaction Type	Mortgage
Record Updated	Jan 20, 2020
Title Company	ATTORNEY ONLY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	241 W RIVO ALTO DR MIAMI BEACH FL 331391269, MIAMI BEACH, FL 33139-1269

Mortgage

Document Number	0000794028
Date	Dec 24, 2019
Book Page	031740/001237
Instrument	794028

Lender

Name	EASTERN FIN'L MTG
Type	Mortgage Company
Address	90 ALMERIA AVE # 204, CORAL GABLES, FL 33134-6171

Agreement

Amount	Amount on Record
Term	60 Months
Due	Dec 23, 2024

June 2018: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	DADE FL
Property Address	310 ISLAND DR, KEY BISCAYNE, FL 33149-2414
Document Number	0000401991
Instrument Date	Jun 15, 2018
Transaction Type	Mortgage
Record Updated	Aug 16, 2018
Title Company	ATTORNEY ONLY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	241 W RIVO ALTO DR MIAMI BEACH FL 331391269, MIAMI BEACH, FL 33139-1269

Mortgage

Document Number	0000401991
Date	Jul 5, 2018
Book Page	031046/000289
Instrument	401991

Lender

Name	EASTERN FIN'L MTG
Type	Mortgage Company
Address	90 ALMERIA AVE # 204, CORAL GABLES, FL 33134-6171

Agreement

Amount	Amount on Record

June 2017: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	DADE FL
Property Address	310 ISLAND DR, KEY BISCAYNE, FL 33149-2414
Document Number	0000364570
Book / Page	030589 / 003647
Instrument Date	Jun 23, 2017
Transaction Type	Mortgage
Record Updated	Jul 7, 2017
Title Company	ATTORNEY ONLY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	241 W RIVO ALTO DR MIAMI BEACH FL 331391269, MIAMI BEACH, FL 33139-1269

Mortgage

Document Number	0000364570
Date	Jun 27, 2017
Book Page	030589/003647
Instrument	364570

Lender

Name	EASTERN FIN'L MTG
Type	Mortgage Company
Address	90 ALMERIA AVE # 204, CORAL GABLES, FL 33134-6171

Agreement

Amount	Amount on Record
Term	12 Months
Due	Jun 26, 2018

Tax Assessment & Valuation

The 2025 property tax bill for 310 Island Dr was $89,437 with a homeowner's exemption.

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	$89,437.00 Homeowner's exemption	$5,686,702	$8,558,786 Land $5,472,000 Building $3,086,786
2023	$41,188.00 (+4.39%) Homeowner's exemption	$2,522,551 (+3%)	$4,112,640 (+9.85%) Land $4,112,640
2022	$39,457.00 Homeowner's exemption	$2,449,079	$3,744,000 Land $3,744,000

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

Flood

FEMA maps place 310 Island 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	Hurricane Irma, Sep 2017 · 38 claims Hurricane Wilma, Oct 2005 · 26 claims Hurricane Andrew, Aug 1992 · 195 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

Wildfire risk around 310 Island 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.

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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