Miami-Dade County property record for 645 Sunset Cir, Key Biscayne, FL 33149
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,769 sqft · built 1970 |
| Lot Size | 0.275 acres (12,020 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $5,500,000 (Mar 2016) |
| Tax Bill | $88,705 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 24-5205-013-0050 |
| Primary APN | 24-5205-013-0050 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 1 Story |
| Building Area | 1,769 sqft Living Area |
| Gross Area | 3,262 sqft |
| Flooring | Vinyl/Resilient |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Concrete Block |
| Construction Type | Concrete |
| Lot Area | 12,020 sqft (0.275 acres) |
| Patio Area | 100 sqft |
| Fence | Fence |
| Boat Access | Boat Access |
| Street Address | 645 SUNSET CIR |
|---|---|
| City | KEY BISCAYNE |
| State | FL |
| Zip | 33149-1726 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 2000:ESTATES,GENERAL |
| Legal Description | HARBOR COVE REV PLAT PB 76-12 PORT OF LOT 4 DESC BEG 165.17FT SWLY OF NE COR OF LOT 4 CONT SWLY 55.91FT S1.17FT ELY 59.19FT N |
| Legal Range | 42 |
| Legal Township | 55 |
| Legal Section | 05 |
| Legal Subdivision | HARBOR COVE REV |
| Legal Lot Number | 4,5 |
| Jurisdiction | DADE FL |
| Township / Civil Division | KEY BISCAYNE |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 4602 |
Source: Miami-Dade County records · APN 24-5205-013-0050
Assessment roll updated July 1, 2025 · Last verified February 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 | 635 SUNSET CIR, KEY BISCAYNE, FL 33149-1726 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 18, 2016 · Amount on Record |
| Deed Sale | Mar 18, 2016 · Amount on Record |
| Prior Sale | Dec 19, 2011 · Amount on Record |
| Deed Document Number | 2016R0164484 |
| Deed Book / Page | 30004 / 0744 |
| Record Updated | Jun 08, 2026 |
Source: Miami-Dade County records · Assessment roll updated July 1, 2025 · Last verified February 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 | $88,705.00 (+22.95%) | $6,898,308 (+30.89%) Land $6,611,000 Building $287,308 | $6,898,308 (+30.89%) Land $6,611,000 Building $287,308 |
| 2023 | $72,148.00 (+26.64%) | $5,270,479 (+49.98%) Land $4,997,916 Building $272,563 | $5,270,479 (+49.98%) Land $4,997,916 Building $272,563 |
| 2022 | $56,973.00 | $3,514,127 Land $3,239,390 Building $274,737 | $3,514,127 Land $3,239,390 Building $274,737 |
Source: FEMA National Flood Hazard Layer as of January 25, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 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 201 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 201 in force |
| Nearby Flood Claims | 312 (1979–2024) |
| Claims Outside the SFHA | 1 of 312 |
| Most Recent Claim | Jun 2024 · rainfall accumulation |
| Claims by Event |
|
| Wildfire Risk | Low lower than 99.1% of the US · lower than 98.7% of Florida |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 84 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | MDWASA - MAIN SYSTEM serves 2,377,460 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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