This is not a complete overview. These are some of the items we reviewed from the Office of the Governor’s Sept. 29, 2026 housing announcement and the official bill text on the California Legislature’s website. Details, limits and start dates vary by law. Please read the official sources for the full picture.
In late September, Gov. Gavin Newsom signed more than 30 housing bills. According to the governor’s office, the goal is to build more homes, speed up approvals and open more paths to owning a home. That’s a lot of fine print, so we picked a few of the changes and explained them in plain English.
- The governor’s office announced more than 30 new housing laws in late September.
- Some touch everyday homeowners, like backyard homes, permits, window replacements and HOA savings accounts.
- Two of the bills relate to the former Sports Arena site in San Diego’s Midway District.
- Start dates and details vary by law. Each topic below links to the official bill.
Some of what California’s new housing laws change
Tap a box to see a short summary and a link to the official bill.
More room for backyard homes
Many families build a small backyard home for a relative or a renter. Two of the new laws update the rules for these homes.
- Increases how many new detached backyard homes a city must approve on a lot with a single-family house.
- Changes how cities calculate impact fees on some larger backyard homes.
A faster path for first homes
The governor’s office says these laws aim to create more paths to owning a home.
- Creates a streamlined approval path for qualifying townhome projects.
- Updates the state’s existing starter-home law for small home projects.
Less back-and-forth at city hall
Even after a project is approved, building permits can take a long time. The governor’s office says these changes aim to cut red tape.
- Limits how many times a city can send building plans back for another review.
- Lets builders ask cities for an early estimate of required improvements, like street or utility work.
More homes near transit
One law focuses on adding housing in downtown areas of large cities near public transit.
- Requires certain large cities with transit to set aside downtown districts where taller housing is easier to approve. Check the bill to see which cities qualify.
Homes built in a factory
Some homes are built in pieces inside a factory, then put together on site. These laws aim to make that easier.
- Creates more consistent statewide building rules for qualifying factory-built housing.
- Updates inspections and limits some local fees for factory-built housing.
The Midway plan moves a step
Two of the bills relate to redeveloping the former Sports Arena site in San Diego’s Midway District. According to the governor’s office, the plan includes homes, affordable homes, an entertainment venue, open space and shops.
- Streamlines environmental review for the Sports Arena redevelopment project.
- Changes how building height alone is treated in environmental review for certain projects.
Changes for current owners
Some laws are about homes people already live in, not new construction.
- Makes it easier to replace windows with ones that meet state energy and building codes, including in HOA communities.
- Updates rules for HOA reserve (savings) accounts. Check the bill for when the changes begin.
Who might notice?
Homeowners
Some laws touch backyard homes, permits and window replacements. If you’re planning a project, ask your city how the new rules apply to you.
Buyers
Several laws aim to make townhomes and smaller starter homes easier to build. Over time, that could mean more homes to choose from.
Renters
The package as a whole aims to add more homes of every kind, including affordable homes.
Housing talk, decoded
- ADU
- Accessory dwelling unit. A small second home on a lot, like a backyard cottage or a converted garage.
- Fast-track approval
- If a project follows the written rules, the city approves it without long hearings. Laws call this “ministerial.”
- Impact fee
- Money a city charges new homes to help pay for things like roads, parks and pipes.
- Plan check
- When city staff review building drawings to make sure they’re safe and follow the code.
- CEQA
- California’s environmental review law. Reviews under it can add time to projects.
- HOA
- Homeowners association. The group that sets rules and collects dues in many condo and planned communities.
Quick answers
How many housing bills did California sign in 2026?
According to the governor’s office, Gov. Gavin Newsom signed more than 30 housing bills in late September 2026.
What do California’s new housing laws change for homeowners?
Some of the laws touch backyard homes (ADUs), building permits, window replacements and HOA reserve accounts. Details vary by law, so check the official bill text.
Do the new housing laws affect San Diego?
Two of the bills, SB 344 and SB 958, relate to redeveloping the former Sports Arena site in San Diego’s Midway District. Many of the other laws apply across California, including San Diego.
When do California’s new housing laws take effect?
Start dates vary by law. Check each bill on the California Legislature’s website for its effective date.
Where can I read the official bills?
Each bill is on the California Legislative Information website. The governor’s Sept. 29, 2026 announcement lists the bills in the package.
Buying or selling, mortgage questions, or want to learn more?
Reach out to Aaron or Lisette with TrulySD. We live here too, and we’re happy to help you sort out what these changes could mean for you.
Aaron Atencio
REALTOR® · TrulySD Atencio Group
Before real estate, Aaron worked in visual journalism and communications with the Boston Globe, Harvard Business Review and the San Diego Union-Tribune. Today he brings that same eye to listing presentations, market insight and modern marketing for buyers, sellers and investors across San Diego County.
TrulySD Atencio Group | LPT Realty, Inc.
619.573.8763 · aaron@trulysd.com
Lisette Escobar Atencio
REALTOR® · Mortgage Loan Originator
Lisette’s background spans mortgage lending with Navy Federal Credit Union, Wells Fargo and Zillow Home Loans, and earlier, financial advising. She works closely with military families and first-time buyers, with a focus on education, preparation and clear communication.
TrulySD Atencio Group | LPT Realty, Inc.MortgageMortgage Loan Originator | NMLS #450733
NEXA Mortgage LLC | Company NMLS #1660690
619.207.1503 · lisette@trulysd.com
Real estate services: TrulySD Atencio Group | LPT Realty, Inc. (CA DRE #02248983). Mortgage services: NEXA Mortgage LLC, which is separate from TrulySD.com, the TrulySD Atencio Group and LPT Realty, Inc. Equal Housing Opportunity. Equal Housing Lender.
Keep reading
- San Diego homeowners: what Newsom’s new housing laws mean for windows, ADUs and HOA condos
- San Diego’s SB 79 transit law: what it means for nearby neighborhoods
- Office of the Governor: housing bill package, Sept. 29, 2026 (main source)
- AB 956: Accessory dwelling units
- SB 1117: Accessory dwelling units
- AB 1751: Missing Middle Townhome Ownership Act
- SB 1116: Housing development projects, subdivisions
- AB 1621: Postentitlement phase permits
- SB 1014: Estimate of required improvements
- AB 2074: Regional transit hub districts
- AB 1815: Factory-built housing standards
- AB 2058: California Factory-Built Housing Law
- SB 344: City of San Diego mixed-use project
- SB 958: CEQA and building height
- SB 908: Residential window replacement
- AB 2050: HOA reserve accounts
This is a general, plain-language summary, not legal advice. It does not cover every law in the package or every detail of the laws it mentions. Each law has its own rules, limits and start date. Read the official bill text or talk with a qualified professional before making plans for your property.
