Miami-Dade County property record for 740 Allendale Rd, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,947 sqft · built 1951 |
| Lot Size | 0.185 acres (8,059 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,200,000 (Oct 2015) |
| Tax Bill | $24,454 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-001-2000 |
| Primary APN | 24-5205-001-2000 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 1 Story |
| Building Area | 2,947 sqft Living Area |
| Gross Area | 3,367 sqft |
| 1st Floor Area | 2,947 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1997 |
| Exterior Material | Concrete Block |
| Construction Type | Concrete Block |
| Lot Area | 8,059 sqft (0.185 acres) |
| Lot Dimensions | 100 ft deep x 80.6 ft wide |
| Pool Type | Pool with Hot Tub/Spa |
| Pool Area | 49 sqft |
| Patio Area | 590 sqft |
| Street Address | 740 ALLENDALE RD |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-2403 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 0100 |
| Legal Description | 5 & 6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 4 BLK 13 LOT SIZE 80.590 X 100 OR 17431-3927 1096 1 |
| Legal Range | 42E |
| Legal Township | 55S |
| Legal Section | 05 |
| Legal Subdivision | BISCAYNE KEY ESTS |
| Legal Block | 13 |
| Legal Lot Number | 4 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 3 |
| Census Block | 3035 |
| Census Tract | 4602 |
740 Allendale Rd is owned and occupied by two individuals who bought it in October 2015.
Source: Miami-Dade County records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 740 ALLENDALE RD, KEY BISCAYNE, FL 33149-2403 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 6, 2015 · Amount on File |
| Deed Sale | Oct 6, 2015 · Amount on File |
| Prior Sale | Nov 19, 1996 · Amount on File |
| Deed Document Number | 2015640049 |
| Deed Book / Page | 29804 / 509 |
| Prior Transfer Date | Dec 24, 2009 |
| Prior Transfer Doc | 0000055279 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 740 Allendale Rd was $24,454 with a homeowner's exemption.
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 | $24,454.00 Homeowner's exemption | $1,513,993 | $2,533,362 Land $2,095,340 Building $438,022 |
| 2023 | $23,572.00 (+4.6%) Homeowner's exemption | $1,428,471 (+3%) | $2,298,420 (+22.97%) Land $1,853,570 Building $444,850 |
| 2022 | $22,535.00 Homeowner's exemption | $1,386,866 | $1,869,148 Land $1,422,414 Building $446,734 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 740 Allendale Rd 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 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.
Wildfire risk around 740 Allendale Rd 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 98% of the US · lower than 97.6% 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.
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 247 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 | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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