Miami-Dade County property record for 401 Warren Ln, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 2,958 sqft · built 1951 |
| Lot Size | 0.188 acres (8,194 sqft) |
| Owner | Company Name on Record |
| Last Sale | $3,000,000 (Apr 2026) |
| Tax Bill | $23,496 (2025) |
| Deeds & Mortgages | Apr 2026 Sale |
| Flood Zone | Zone AE (high risk) |
| APN | 24-4232-004-0330 |
| Primary APN | 24-4232-004-0330 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 2,958 sqft Living Area |
| Gross Area | 3,313 sqft |
| 1st Floor Area | 2,958 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1996 |
| Exterior Material | Concrete Block |
| Construction Type | Concrete Block |
| Lot Area | 8,194 sqft (0.188 acres) |
| Lot Dimensions | 100 ft deep x 81.9 ft wide |
| Garage Type | Carport |
| Garage Area | 140 sqft |
| Carport | Carport |
| Carport Area | 140 sqft |
| Porch | Porch |
| Porch Area | 84 sqft |
| Patio Area | 330 sqft |
| Street Address | 401 WARREN LN |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-1824 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 0100 |
| Legal Description | TROPICAL ISLE HOMES SUB 1ST ADDN PB 50-72 LOT 17BLK 4 LOT SIZE 81.940 X 100 OR 19586-1478 04/2001 4 |
| Legal Range | 42E |
| Legal Township | 54S |
| Legal Section | 32 |
| Legal Subdivision | TROPICAL ISLE HOMES SUB 1ST ADDN |
| Legal Block | 4 |
| Legal Lot Number | 17 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 4602 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 401 WARREN LN, KEY BISCAYNE, FL 33149-1824 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 29, 2026 · Amount on Record |
| Deed Sale | Apr 29, 2026 · Amount on Record |
| Deed Document Number | 2026289668 |
| Deed Book / Page | 35278 / 780 |
| Prior Transfer Date | Jul 14, 2022 |
| Prior Transfer Doc | 0000568266 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | DADE FL |
| Recording Date | Apr 29, 2026 |
| Property Address | 401 WARREN LN, KEY BISCAYNE, FL 33149-1824 |
| Document Number | 0000289668 |
| Book / Page | 35278 / 780 |
| Instrument Date | Apr 20, 2026 |
| Instrument | 2026.289668 |
| Transaction Type | Transfer |
| Record Updated | May 20, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,818,000.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Limited Liability Partnership |
| Address | 401 WARREN LN, KEY BISCAYNE, FL 33149-1824 |
Source: Miami-Dade County assessment roll, as of October 21, 2026
| 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 | $23,496.00 (+2.06%) | $1,447,080 (+5.99%) | $2,553,420 (+11.66%) Land $2,130,440 Building $422,980 |
| 2024 | $23,022.00 (+1.36%) | ||
| 2023 | $22,714.00 (+5.1%) Homeowner's exemption | $1,365,338 (+3%) | $2,286,802 (+23.41%) Land $1,884,620 Building $402,182 |
| 2022 | $21,611.00 Homeowner's exemption | $1,325,571 | $1,852,988 Land $1,446,241 Building $406,747 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 |
|
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 | 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.
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 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures