| Primary address | 4243 Comet Circle, Union City |
| Zip code | 94587 |
| County | Alameda |
| Parcel ID | 483-102-81 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 03/20/2026 |
| Sale price | $759,000 |
| Arm's length | Register |
| Current property tax | $3,145 |
| Building sqft | 1,255 |
| Building class | Townhouse - Planned Development (1500) |
| Acreage | 0.04 |
| Units | 1 |
| Year built | 1972 |
| Stories | 2 |
| Bedrooms | 3 |
| Bathrooms | 2 |
| Zoning district | Muliti-Family Residential (RM 2500) |
| School district | New Haven SCH |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
4243 Comet Circle, Union City, CA 94587 was built in 1972 and has a total of 1,255 square feet.
What is the assessed value of 4243 Comet Circle, Union City, CA 94587 and the property tax paid?Assessed at $256,220, the tax amount paid for 4243 Comet Circle, Union City, CA 94587 is $3,233.
When was 4243 Comet Circle, Union City, CA 94587 last sold and what was the last sale price?4243 Comet Circle, Union City, CA 94587 was last sold in 03/20/2026 for $759,000.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 4243 Comet Circle, Union City, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 4243 Comet Circle, Union City, CA 94587. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Base tax | $3,234 |
| Current property tax | $3,145 |
| Market value | $256,220 |
Here's the assessment & property tax history for 4243 Comet Circle, Union City, including the evolution of the total tax rate and corresponding property tax.
| Year | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|
| 2025-2026 | $256,220 | 1.2621 | $3,234 | +4.15% |
| 2024-2025 | $251,197 | 1.236 | $3,105 | -21.54% |
| 2023-2024 | $246,273 | 1.6069 | $3,957 | +31.95% |
| 2022-2023 | $241,445 | 1.2422 | $2,999 | +2.26% |
| 2021-2022 | $236,711 | 1.2392 | $2,933 | +2.85% |
The complete history of permits filed for 4243 Comet Circle, Union City, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
Access a detailed real estate market overview of Union City so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Union City and compare it to other neighborhoods in Alameda County.
Check out recently sold homes in Union-City and see how their prices compare.
Create a free account to unlock extended information for 4243 Comet Circle, Union City, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
| Fire hazard zone | See more on map |
| Faults and tsunami inundation zone map | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 4243 Comet Circle, Union City to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Peace Terrace Academy | NR | Private | PK-8 | 178 | 0.71 |
| Peace Terrace Academy | NR | Private | PK-8 | 178 | 0.71 |
| Alvarado Elementary School | 4 | Public | K-5 | 660 | 0.79 |
| Pioneer Elementary School | 5 | Public | K-5 | 628 | 0.93 |
| Ardenwood Elementary School | 8 | Public | TK-5 | 778 | 1.13 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Peace Terrace Academy | NR | Private | PK-8 | 178 | 0.71 |
| Itliong-Vera Cruz Middle School | 6 | Public | 6-8 | 1,102 | 0.76 |
| Cesar Chavez Middle School | 4 | Public | 6-8 | 1,012 | 1.07 |
| Union City Christian School | NR | Private | K-12 | 71 | 1.80 |
| New Haven Adult | NR | Public | 0 | 2.19 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Union City Christian School | NR | Private | K-12 | 71 | 1.80 |
| New Haven Adult | NR | Public | 0 | 2.19 | |
| James Logan high school | 7 | Public | 9-12 | 3,315 | 2.19 |
| Spectrum Center-Mission Valley Campus | NR | Private | K-12 | 0 | 2.59 |
| Connecting Waters Charter - East Bay | 7 | Charter | K-12 | 494 | 2.59 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 4243 Comet Circle, Union City.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 4263 Comet Cir, Union City | 1,583 | 11/13/2024 | |
| 4262 Comet Cir, Union City | 2,676 | 01/14/1994 | $127,000 |
| 4223 Comet Cir, Union City | 1,342 | 02/06/2018 | |
| 4258 Comet Cir, Union City | 1,137 | 11/25/2019 | |
| 4221 Comet Cir, Union City | 1,137 | 07/15/2013 | |
| 4227 Comet Cir, Union City | 1,137 | 08/27/2024 | |
| 4205 Comet Cir, Union City | 1,255 | 03/29/2021 | |
| 4291 Comet Cir, Union City | 1,255 | 04/29/2005 | $451,000 |
| 4132 Asimuth Cir, Union City | 1,390 | ||
| 4134 Asimuth Cir, Union City | 1,584 | 06/06/2023 | |
| 4289 Comet Cir, Union City | 1,583 | 02/26/2019 | |
| 4275 Comet Cir, Union City | 1,137 | 11/22/2016 | |
| 4264 Comet Cir, Union City | 1,583 | 04/27/2007 | |
| 4126 Asimuth Cir, Union City | 1,584 | 01/21/2025 | |
| 4241 Comet Cir, Union City | 1,255 | 10/31/2023 | |
| 4273 Comet Cir, Union City | 1,342 | 05/07/2010 | $221,000 |
| 4261 Comet Cir, Union City | 1,255 | 07/31/2017 | $510,000 |
| 4260 Comet Cir, Union City | 1,255 | 01/17/2019 | |
| 4129 Asimuth Cir, Union City | 1,280 | 06/21/2022 | $810,000 |
| 4225 Comet Cir, Union City | 1,342 | 04/16/1997 | $25,000 |