Alameda County property record for 4623 Maritime Loop, Union City, CA 94587 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,551 sqft · built 1996 |
| Lot Size | 0.162 acres (7,071 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $615,000 (Nov 2001) |
| Tax Bill | $12,322 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 482-44-42 |
| Primary APN | 482-44-42 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,551 sqft Living Area |
| Year Built | Built 1996 |
|---|---|
| Effective Year Built | Effective 2002 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,071 sqft (0.162 acres) |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 4623 MARITIME LOOP |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-6006 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00042 BLK: TR: 6616 |
| Legal Subdivision | TR 6616 |
| Legal Tract | 6616 |
| Legal Lot Number | 42 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 440332 |
Source: Alameda County records · APN 482-44-42
Assessment roll updated August 5, 2026 · 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 Company Names on File |
|---|---|
| Mailing Address | 4623 MARITIME LOOP, UNION CITY, CA 94587-6006 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Revocable Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 09, 2001 · Amount on Record |
| Deed Sale | Nov 09, 2001 · Amount on Record |
| Prior Sale | May 30, 1996 · Amount on Record |
| Deed Document Number | 2001440179 |
| Last Transfer Date | Nov 22, 2024 |
| Transfer Doc | 0000001289 |
| Record Updated | Sep 20, 2026 |
Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Union City |
| Unified School District | New Haven Unified School District (KG - 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 |
|---|---|---|---|
| 2026 | $919,653 (+1.23%) Land $277,993 Building $648,660 | ||
| 2025 | $12,322.00 (+1.24%) Homeowner's exemption | $908,484 (+4.04%) Land $272,543 Building $635,941 | |
| 2023 | $12,171.00 Homeowner's exemption | $873,217 Land $261,962 Building $611,255 | $1,604,070 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014403322, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Nearby Flood Policies | 4 in force |
| Wildfire Risk | Low above 20% of the US · above 11% of California |
|---|---|
| Wildfire Likelihood | About 1 in 8,333 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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, availability as of December 31, 2025 · Published October 2026 · based on 72 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 1,200 / 35 |
| Robinson Hardware and Software Solutions | Fixed Wireless (unlicensed) | 1,000 / 1,000 |
| Tekify | Fixed Wireless (unlicensed) | 570 / 120 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
May also be available at this address: T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.
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