A Quick Introduction to AB 1335

What is AB 1335?

AB 1335 is Abundant Housing LA’s bill to align California’s statewide housing and transportation processes. You can read our full fact sheet on the bill here, or keep reading for an overview of the basics.

Why does it matter?

Transportation and housing are inextricably linked, and we should plan them together to reach our housing-affordability and climate goals.

Background:

California requires regional governments plan for growth in two ways:

Regional Transportation Plans (RTPs) are how regions plan to meet their transportation needs. Their associated Sustainable Communities Strategies (SCSs) show how they’ll align housing and transportation to reduce traffic and greenhouse gas emissions. The Regional Housing Needs Assessment (RHNA) and Housing Element process has cities show how they are going to plan for housing growth.

These two planning processes use different population growth projections:

City SCS Projected Change in Households 2016-2045 RTP/SCS Annual Household Growth Projection Regional Housing Needs Allocation (housing units), 2021-2029 RHNA Annual Household Growth Projection
Los Angeles 426,000 14,690 456,643 57,080
Anaheim 21,600 745 17,453 2,182
Riverside 20,600 710 18,458 2,307
San Bernardino 9,100 314 8,123 1,015
Ventura 5,600 193 5,312 664
The Problem:

The mis-alignment in population projections means that transportation investments that would support infill housing development are not prioritized as highly as they should be. The discrepancy also increases the risk that affordable housing developments won’t be able to take advantage of state funding and permit streamlining.

Further, we do not know how well the Sustainable Communities Strategies process is working because cities are not required to report on progress toward implementing their SCSs.

AB 1335 solves these problems in two ways:
  • AB 1335 requires local governments to report annually on what actions, if any, they are taking to align their land use regulations with the applicable Sustainable Communities Strategy (SCS).
  • It also requires the population change estimates in the SCS to be prepared in a similar manner to those prepared for the Regional Housing Needs Allocation.
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