Image of the County Administration Building (home of the Alameda County Assessor’s Office) in Oakland.

Office Locations

NOTE: OUR PUBLIC COUNTERS ARE NOW OPEN. PLEASE CONSIDER CALLING OR EMAILING US INSTEAD AS MANY ISSUES CAN BE RESOLVED WITH A PHONE CALL OR EMAIL MESSAGE.

The County Assessor’s Office is located in the County Administration Building, 1221 Oak Street Room 145, Oakland.

Business Personal Property is located at 125 12th Street, Suite 320.

Our Dublin Satellite Office is located at 7600 Dublin Blvd #270, Dublin CA, 94568.

Parking is available in the Alcopark parking garage at 1221 Jackson Street. Map 

Office Hours

Our business hours are for our Oakland offices are 9:00 AM to 4:30 PM Monday through Friday except for holidays.

Business hours for our Dublin Satellite Office are 9:00 AM to 4:30 PM Tuesday through Thursday except for holidays.

Please click HERE for a list of holidays when our Office is closed.

Directions to our Oakland Office

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.

Attention!A Message to Boat Owners

Dear Alameda County Residents:

Many vessel owners will see an increase in their 2022 property tax valuations!
 
The valuation factors calculated by the State Board of Equalization and provided to California County Assessors through LTA 2022/003 indicate an increase in 2022 values between 20-24% depending on the type of vessel. The State Board of Equalization reviews average retail sale prices for new and used powerboats, sailboats, and personal watercraft annually to develop the valuation factors. Per their research, these vessels have experienced large appreciation in value compared to 2021.

For more information please click here.

Sincerely,

The Alameda County Assessor’s Office