No, your application ADD or RNC will be processed but it cannot be finalized until the accessors office has assigned an APN number(s).
A APN number is the counties way of acknowledging the newly created parcel. The addresses assigned by Permit Sonoma can now be assigned to the new APN and the routing letter can be provided to the applicant and assigned in the 9-1-1 System.
NOTE: Address numbers are assigned to structures requiring address number per Permit Sonoma Standards. Undeveloped parcels will have a number reserved till development permits are applied for to verify the number is in sequence.