Property Info

Press Enter to show all options, press Tab go to next option


CommunityView™ is a mapping and data information website, which provides details 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 view the following types of information:

Road Map

Aerial Color Photography

Click “print” to print a copy of the map

Parcel Information


City Boundary

Click “view” to change the map view, e.g. aerials only




Click “help” to see more detailed help information

Bike and Trail Facilities


Search Instructions

  • Enter the property address (including number) in the space next to "Street/Address:" (ex. 34009 Alvarado-Niles Rd)
  • Zoom to a Scale where parcel lines are visible
  • Place cursor inside of the parcel and click the left mouse button
  • A “Bubble” displays 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 our 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 the City of Union City at (510) 675-5319 or visit City Hall, located at 34009 Alvarado-Niles Road. Department specific information should be directed to the following numbers:

Economic and Community Development

(510) 675-5319

Public Works

(510) 675-5308


(510) 471-1365


(510) 675-5470

Leisure Services

(510) 675-5265

Technical Requirements

System Requirements

Internet Connection – minimum DSL

RAM – minimum 512 MB

System Windows Web Browsers

Internet Explorer versions 7,8, 9

Google Chrome and Firefox

Supported Operating Systems

Windows: 2000, XP, Vista 2007


Supported MAC Web Browsers



Terms of Use

Before you may access the following information and graphical representations available, you are required to read and accept the following disclaimer. After reading, please click the Agree button at the bottom of the page. If you accept, the introductory Community View™ 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. The City of 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.