Miami-Dade County property record for 643 Warren Ln, Key Biscayne, FL 33149 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 4 Baths |
| Year Built | Built 1996 |
| Square Footage | 3,150 sqft Living Area |
| Lot Size | 7,500 sqft (0.172 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $2,350,000 (2020) |
| Tax Bill | $30,491.00 (2025) |
| Primary APN | 24-5205-001-0700 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Building Area | 3,150 sqft Living Area |
| Gross Area | 4,364 sqft Gross Area |
| Stories | 2 Stories |
| Year Built | Built 1996 |
|---|---|
| Effective Year Built | Effective 1996 |
| Exterior Material | Concrete Block Exterior |
| Construction Type | Concrete Blocks Construction |
| Lot Area | 7,500 sqft (0.172 acres) |
| Depth X Width | 100 ft x 75 ft Depth x Width |
| Garage Area | 161 sqft Garage |
| Patio Area | 550 sqft Patio |
| Porch Area | 254 sqft Porch |
| Street Address | 643 WARREN LN |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-2020 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | BISCAYNE KEY ESTS PB 50-61 LOT 12BLK 6 LOT SIZE 75.000 X 100 OR 20831-1994 10/2002 6 |
| Legal Range | 42E |
| Legal Township | 55S |
| Legal Section | 05 |
| Legal Subdivision | BISCAYNE KEY ESTS |
| Legal Block | 6 |
| Legal Lot Number | 12 |
| Jurisdiction | DADE FL |
| Minor Civil Division | KEY BISCAYNE |
| Census Blockgroup | 3 |
| Census Block | 3018 |
| Census Tract | 4602 |
Source: Miami-Dade County records · APN 24-5205-001-0700
Assessment roll updated July 21, 2025 · Last verified August 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 File |
|---|---|
| Mailing Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Sep 13, 2021 | Deed of Trust, Mortgage · Line of Credit OCEAN BANK |
| Jul 23, 2021 | Intrafamily Transfer, Transfer ATTORNEY |
| Aug 04, 2020 | Warranty Deed, Transfer · Conventional Mortgage HSBC BANK USA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 04, 2020 · Amount on Record |
| Deed Sale | Aug 04, 2020 · Amount on Record |
| Prior Sale | Jan 03, 2012 · Amount on Record |
| Deed Doc Number | 2020426022 |
| Deed Book / Page | 32035 / 1218 |
| Last Transfer Date | Jun 25, 2021 |
| Transfer Doc | 0000530357 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Transaction Type | Mortgage |
| Record Updated | Oct 06, 2021 |
| Title Company | MORTGAGE INFORMATION SERVICES, MORTGAGE INFORMATION SVCS |
| Name | Verified Name |
|---|---|
| Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Document Number | 0000675123 |
|---|---|
| Date | Sep 13, 2021 |
| Book Page | 32731/2456 |
| Instrument | 2021R0675123 |
| Name | OCEAN BANK |
|---|---|
| Type | Bank |
| Address | MIAMI, FL 33156 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 359 Months |
| Due | Aug 09, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | DADE FL |
| Recording Date | Jul 23, 2021 |
| Property Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Document Number | 0000530357 |
| Book / Page | 32637 / 1864 |
| Map Reference | MB 50 PG 61 |
| Instrument Date | Jun 25, 2021 |
| Instrument | 2021R0530357 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Title Company | ATTORNEY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | DADE FL |
| Recording Date | Aug 04, 2020 |
| Property Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Document Number | 0000426022 |
| Book / Page | 32035 / 1218 |
| Map Reference | MB 50 PG 61 |
| Instrument Date | Jul 29, 2020 |
| Instrument | 2020R0426022 |
| Transaction Type | Transfer |
| Record Updated | Feb 01, 2022 |
| Title Company | ATTORNEY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $14,100.00 |
| Amount Accuracy | Rounded Values by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 570 SABAL PALM DR, 570, KEY BISCAYNE, FL 33149-1821 |
| Name | Verified Name |
|---|---|
| Address | 643 WARREN LN, KEY BISCAYNE, FL 33149-2020 |
| Document Number | 0000001220 |
|---|---|
| Date | Aug 04, 2020 |
| Instrument | 32035/1220 |
| Name | HSBC BANK USA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 01, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.94% |
| Type Change Date | Aug 01, 2030 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.94% |
| Index | 1-Year LIBOR |
| Max Rate | 7.94% |
Source: Miami-Dade County records · Assessment roll updated July 21, 2025 · Last verified August 2026
| Type | Name |
|---|---|
| State | Florida |
| County | Miami-Dade County |
| Municipality | Key Biscayne Village |
| Unified School District | Dade County School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $30,491.00 (+3.7%) Homeowner's exemption | $1,903,488 (+5.99%) | $2,859,107 (+7.51%) Land $1,950,000 Building $909,107 |
| 2023 | $29,403.00 (+4.24%) Homeowner's exemption | $1,795,965 (+3%) | $2,659,359 (+17.11%) Land $1,725,000 Building $934,359 |
| 2022 | $28,207.00 Homeowner's exemption | $1,743,656 | $2,270,735 Land $1,323,750 Building $946,985 |
Source: FEMA National Flood Hazard Layer, Miami-Dade County (12086C), updated January 25, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AE |
|---|---|
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Special Flood Hazard Area | Yes |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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