Our mapping and data website, CommunityView™, provides information on properties, city services, and local features. Enter a street address or an Assessor's Parcel Number (APN) in the search window to locate a particular property and see the following types of information:
Aerial Color Photography
Bike and Trail Facilities
Enter the property address (including number) in the space next to "Street/Address:" (ex. 34009 Alvarado-Niles Road)
Zoom to a scale where parcel lines are visible.
Place cursor inside of the parcel and left click.
A "Bubble" will appear with the property address and APN, as well as several links/commands including "Driving Directions," "Photo," "Summary," "Details," and "Clear Selection."
Incremental Zoom: Left mouse clicking the "+" or "-" sign
Dynamic Zoom: If you have a mouse with a wheel, you can move the wheel forward or backward to quickly zoom in or out
Zoom to Rectangle: Press and hold the Ctrl key as you draw a selected area to zoom in
If you cannot access the GIS system and need information about a property, contact Union City at 510-675-5319 or visit City Hall, located at 34009 Alvarado-Niles Road. For department-specific information, use the following phone numbers:
Community and Recreation Services
Economic and Community Development
Internet Connection - minimum DSL
RAM - minimum 512 MB
Supported Operating Systems
Windows: 2000, XP, Vista 2007
System Windows Web Browsers
Internet Explorer versions 7,8, 9
Google Chrome and Firefox
Supported MAC Web Browsers
Before you can access the following information, you must read and accept the following disclaimer. After reading, please click the Agree button at the bottom of the page. If you accept, the introductory CommunityView™ page will be available to make selections.
The GIS information provided by the City of Union City is a public resource providing a visual display of general information for your convenience. Union City makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness or completeness of any of the information provided herein. All information contained herein should be verified directly with the City of Union City before relying on its accuracy. The City of Union City expressly disclaims any representations and warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose.
The City of Union City shall assume no liability for:
Any errors, omissions, or inaccuracies in the information provided regardless of how caused; or
Any decision made or action taken or not taken by user in reliance upon any information or data furnished hereunder.
Permission to use this application is expressly conditioned upon your unconditional acceptance of and consent to the terms of this disclaimer.