Miami-Dade County property record for 422 Warren Ln, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,044 sqft · built 1950 |
| Lot Size | 0.175 acres (7,626 sqft) |
| Owner | Company Name on Record |
| Last Sale | $2,850,000 (Nov 2024) |
| Tax Bill | $35,496 (2025) |
| Deeds & Mortgages | Jan 2021 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 24-4232-004-0140 |
| Primary APN | 24-4232-004-0140 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 1,044 sqft Living Area |
| Gross Area | 1,859 sqft |
| 1st Floor Area | 1,044 sqft |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Concrete Block/Hollow Tile/Frame |
| Construction Type | Concrete Block |
| Lot Area | 7,626 sqft (0.175 acres) |
| Lot Dimensions | 100 ft deep x 76.3 ft wide |
| Garage Area | 196 sqft |
| Porch | Porch |
| Porch Area | 237 sqft |
| Patio Area | 360 sqft |
| Street Address | 422 WARREN LN |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-1825 |
| 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 20BLK 3 LOT SIZE 76.260 X 100 OR 17602-4069 0497 4 COC 22959-4327 11 2004 4 |
| Legal Range | 42E |
| Legal Township | 54S |
| Legal Section | 32 |
| Legal Subdivision | TROPICAL ISLE HOMES SUB 1ST ADDN |
| Legal Block | 3 |
| Legal Lot Number | 20 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 3 |
| Census Block | 3013 |
| 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 | 820 MASHTA PL, KEY BISCAYNE, FL 33149-1752 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 21, 2024 · Amount on Record |
| Deed Sale | Nov 21, 2024 · Amount on Record |
| Prior Sale | Sep 8, 2010 · Amount on Record |
| Deed Document Number | 2024879077 |
| Deed Book / Page | 34503 / 493 |
| Prior Transfer Date | Nov 9, 2004 |
| Prior Transfer Doc | 0001179754 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DADE FL |
| Property Address | 422 WARREN LN, KEY BISCAYNE, FL 33149-1825 |
| Transaction Type | Mortgage |
| Record Updated | Jul 29, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000002197 |
|---|---|
| Date | Jan 4, 2021 |
| Book Page | 32268/4693 |
| Instrument | 2021R0002197 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | DOWNERS GROVE, IL 60515 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 1, 2051 |
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 | $35,496.00 (+23.52%) | $2,187,918 (+12.24%) Land $1,982,760 Building $205,158 | $2,187,918 (+12.24%) Land $1,982,760 Building $205,158 |
| 2024 | $28,737.00 (+3.18%) | ||
| 2023 | $27,852.00 (+18.15%) | $1,949,328 (+26.34%) Land $1,753,980 Building $195,348 | $1,949,328 (+26.34%) Land $1,753,980 Building $195,348 |
| 2022 | $23,574.00 | $1,542,945 Land $1,345,989 Building $196,956 | $1,542,945 Land $1,345,989 Building $196,956 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
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