660 Warren Ln, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 660 Warren Ln, Key Biscayne, FL 33149

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 2,492 sqft · built 1990
Lot Size	0.172 acres (7,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,875,000 (Apr 2021)
Tax Bill	$36,429 (2025)
Deeds & Mortgages	Apr 2021 Sale & Mortgage
Flood Zone	Zone AE (high risk)
APN	`24-5205-001-0770`

Property Details

APN / Parcel Number

Primary APN	`24-5205-001-0770`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Stories	2 Stories
Building Area	2,492 sqft Living Area
Gross Area	3,322 sqft

Exterior

Year Built	Built 1990
Effective Year Built	Effective 1990
Exterior Material	Concrete Block/Hollow Tile/Frame
Construction Type	Concrete Block
Lot Area	7,500 sqft (0.172 acres)
Lot Dimensions	100 ft deep x 75 ft wide
Patio Area	1,008 sqft

Location & Zoning

Street Address	660 WARREN LN
City	KEY BISCAYNE
State	FL
Zip	33149-2021
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	0100
Legal Description	BISCAYNE KEY ESTS PB 50-61 LOT 5 BLK 7 LOT SIZE 75.000 X 100 OR 19798-0228 07/2001 1
Legal Range	42E
Legal Township	55S
Legal Section	05
Legal Subdivision	BISCAYNE KEY ESTS
Legal Block	7
Legal Lot Number	5
Jurisdiction	DADE FL
Township / Civil Division	KEY BISCAYNE
Census Block Group	3
Census Block	3017
Census Tract	4602

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	660 WARREN LN, KEY BISCAYNE, FL 33149-2021
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 8, 2021 · Amount on Record
Deed Sale	Apr 8, 2021 · Amount on Record
Prior Sale	May 29, 1998 · Amount on Record
Deed Document Number	2021241391
Deed Book / Page	32437 / 2570
Record Updated	Oct 29, 2026

April 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	DADE FL
Recording Date	Apr 8, 2021
Property Address	660 WARREN LN, KEY BISCAYNE, FL 33149-2021
Document Number	0000241391
Book / Page	32437 / 2570
Map Reference	MB 50 PG 61
Instrument Date	Mar 29, 2021
Instrument	2021R0241391
Transaction Type	Transfer
Record Updated	Feb 1, 2022
Title Company	FOREVER HOME TITLE LLC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$11,250.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	7004 KENNEDY BLVD E # E16A, 7004, GUTTENBERG, NJ 07093-5029

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	660 WARREN LN, KEY BISCAYNE, FL 33149-2021

Mortgage

Document Number	0000002572
Date	Apr 8, 2021
Instrument	32437/2572

Lender

Name	SPROUT MORTGAGE LLC
Type	Non-Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 1, 2051

Tax Assessment & Valuation

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	$36,429.00 (+15.17%)	$2,181,729 (+7.04%)	$2,347,585 (+15.18%) Land $1,950,000 Building $397,585
2023	$31,631.00 (+16.39%)	$2,038,147 (+24.34%) Land $1,725,000 Building $313,147	$2,038,147 (+24.34%) Land $1,725,000 Building $313,147
2022	$27,177.00	$1,639,166 Land $1,323,750 Building $315,416	$1,639,166 Land $1,323,750 Building $315,416

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

Flood

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 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

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 533 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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