Senate Bill 9 (SB-9) requires local entities to streamline the approval of certain housing projects by providing a ministerial approval process, removing the requirement for CEQA analysis, and removing the requirement for Conditional Use Authorization or other similar discretionary entitlements granted by the Planning Commission or Historic Preservation Commission. This is a voluntary program that the homeowner may elect to pursue, provided that certain eligibility criteria are met.


At CityStructure, our vision is a world where every homeowner has a clear understanding of the development potential of their property. This is why we give you free access to the Untapped Development Potential for any property.


A ministerial decision involves only the use of fixed standards or objective measurements, and the city cannot use personal, subjective judgment in deciding whether or how the project should be carried out.  An SB-9 project is a project that proposes no more than two new units, or that proposes to add one new unit to one existing unit.

There are three options under SB-9:

  • Lot Split (40% and 60% split; min. 1,200 sqft either one)
  • Duplex  (two units)
  • Lot Split and Duplex (split the lot and have two units on each one)

Is my project eligible for streamlined approval using SB-9?

The lot must be located in an RH-1, RH-1(D), and RH-1(S) zoning districts. If there is an existing home on the this lot, it must have been owner-occupied or vacant for the past three (3) years.

The remaining eligibility criteria The Planning Department will review to confirm eligibility for the program within 30 days of submittal to the Planning Department.

As exciting as it sounds, getting your permits fast by using the streamlined permitting process, could be tricky because the eligibility conditions have to follow strict rules. We put together a quick quiz to make it easy for you to check eligibility.

How much could you build on your property?

Get an instant free estimate if there is any untapped potential for your property based on the city zoning and state regulations.