Do I need a local form to file a civil complaint in Contra Costa County?

No county-specific form is required. The Civil Case Cover Sheet (CM-010), Summons (SUM-100), and complaint are the filing set.

What must be served with the summons in Contra Costa County?

The summons, complaint, and cover sheet, plus the ADR information required statewide by rule 3.221.

Filing a civil complaint in Contra Costa County, California: what the clerk requires

Where to file

Wakefield Taylor Courthouse (Martinez)725 Court Street, Martinez, CA 94553civil filings; address not verified on a page read. Interpreter form lists Martinez, Pittsburg, Richmond, Walnut Creek locations; civil filing split by location not verified

What Contra Costa County requires with the complaint

Beyond the statewide Civil Case Cover Sheet (CM-010), Summons (SUM-100), and your complaint.

No county-specific form is required with a new civil complaint in Contra Costa County. The statewide set (Civil Case Cover Sheet CM-010, Summons SUM-100, and the complaint) is what the clerk expects.

Some of this county's local rules could not be read in full when last checked (2026-10-09); confirm with the civil clerk before relying on it.

What to serve with the summons

Beyond the summons, complaint, and cover sheet, Contra Costa County does not list additional documents to serve with the summons (California Rules of Court, rule 3.221, still applies to ADR information).

What filers get caught by here

Unlimited: POS-010 due within 60 days of filing; limited collections: 180 days. ADR stipulation CV-655b must be filed at least 15 days before CMC and copy sent to ADR office. Packets revised 10/9/25 (unlimited) and 1/5/26 (limited). E-filing mandatory status not verified.

What SimpleCase generates for a Contra Costa County filing

From one uploaded complaint, reviewed on one screen before anything downloads.

CM-010 Civil Case Cover Sheet
SUM-100 Summons
POS-010 Proof of Service (Personal)

See it on a Contra Costa County case

A sample case is waiting with this county's forms. No credit card, first three cases free.

Try it with a Contra Costa County sample

SimpleCase prepares document drafts for attorney review; it is not a law firm and does not provide legal advice, and no attorney-client relationship is created by using it. Court data on this page is sourced from the 1Court Directory with the verification date shown, and statutes and court rules change: always confirm current requirements, deadlines, and fees with the clerk of the court before filing.