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

Office Locations


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.

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

Directions to our 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!Public Counter Closure

Due to the Covid-19 pandemic and public health concerns, the Assessor's Office is temporarily closing our public counters until further notice for both your and our staff's protection. It is important that we eliminate personal contact whenever possible to fight the spread of the virus. Our technicians are still available to provide assistance via telephone from 8:30AM-5:00PM Monday through Friday.

If you need to drop-off documents, please leave them in the box provided and staff will retrieve them promptly to protect confidentiality.

We sincerely appreciate your understanding and patience during this most difficult time.