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The Alameda County Assessor is pleased to announce that the AC Property App is now available on Apple devices. You can lookup your assessed value, property taxes, and parcel map. You can even pay your property taxes right from the app. Download it from the iTunes store.

General & Ownership Information
(510) 272-3787
Business Personal Property:
(510) 272-3836
Our business hours are from 8:30AM to 5:00PM Monday through Friday except for holidays
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Directions to our Office
The County Assessor's Office is located in the County Administration Building, 1st Floor, 1221 Oak Street, Oakland.
Business Personal Property is located at 125 12th Street, Suite 320.
Parking is available in the Alcopark parking
garage at 1221 Jackson Street. Map
I-880 North from Fremont/Hayward/San Leandro
Take the Oak Street exit, turn right on Oak Street and
proceed 5 blocks toward the courthouse.
I-580 West from Livermore/Castro Valley
Take I-580 West, exit Lakeshore Drive, turn left and
proceed around Lake Merritt to 14th Street. Cross Oak Street, turn left on Madison Street, cross 13th Street, and park.
I-80 East from San Francisco/Emeryville
Take I-580 East to I-980 South to I-880 South to the
Jackson Street exit. Turn left on Jackson Street then turn right on 13th Street. Proceed 2 blocks to Oak Street.
Taking BART
Take the appropriate train to the Lake Merritt station and walk 3 blocks on Oak
Street toward the courthouse.