SB10 Services

About SB 10 Flexible Rezoning for Up to 10 Homes Plus ADUs

SB 10 is a California housing law that gives cities a voluntary, streamlined way to rezone properties for up to 10 residential units per lot in urban, transit-rich, or jobs-rich areas. The goal is to encourage small, neighborhood scale apartment buildings, often called “Missing Middle Housing.”

A key benefit of SB 10 is that the 10-unit maximum applies only to the primary units.
This means that, under California’s ADU laws, a property may still be able to add:

  • Up to 10 Accessory Dwelling Units (ADUs)
  • That do not count toward the 10-unit SB 10 limit

This opens the door to thoughtful, flexible, small scale density that blends into existing neighborhoods while significantly increasing housing supply.

Why SB10 Matters

When a city adopts SB 10 rezoning, it unlocks powerful advantages for both property owners and communities:

  • Up to 10 main units by right (once an SB 10 ordinance is passed locally)
  • Plus ADUs on top of that, using standard state ADU rules
  • Faster and simpler approvals because SB 10 allows cities to skip costly environmental reviews
  • Encourages walkable, transit oriented, and climate friendly housing patterns
  • Creates new opportunities for infill development without altering neighborhood character dramatically

Because SB 10 is optional, each city decides if and where to use it, but where adopted, it offers some of the most flexible small scale housing potential in California.

Our Expertise

We help clients fully leverage the development opportunities unlocked by SB 10, including:

  • Identifying properties in SB 10 rezoned areas
  • Evaluating potential for 10 units + ADUs
  • Guiding architectural design, planning, feasibility, and entitlement strategy
  • Ensuring compliance with both SB 10 guidelines and state ADU laws

Whether you’re a homeowner, small developer, or investor, we know how to maximize the benefits of SB 10 to create efficient, attractive, and financially strong housing projects.

Streamlined Permit Process

Our permitting service streamlines the complex process of obtaining all necessary permits for your Accessory Dwelling Unit (ADU) project. We offer comprehensive coordination and document control for a wide range of permit types, ensuring a smooth and efficient approval process. Our experienced team manages every detail, from initial application to final approval, allowing you to focus on your project with confidence.

GSADUs Advantage

Unlocking your vision begins with understanding your unique needs and aspirations. Through a collaborative and iterative design process.

ON-TIME COMPLETION RATE

0 %

PROJECTS COMPLETED

0 +

COLLECTED EXPERIENCE

0 +

Multi-Disciplinary

A one stop shop approach, we consolidate expertise, eliminating the need for multi-firm coordination.

Responsiveness

We respond quickly to calls, emails, and provide regular project updates without delays.

Design & Engineering

Our skilled team blends creative design with technical expertise to solve challenges.

Innovative Solutions

We deliver forward-thinking ideas that bring efficiency, style, and modern functionality.

Client-Centred

Every project starts with listening to your needs and turning them into tailored solutions.

Value Engineering

We maximize budgets through smart planning, efficiency, and sustainable design choices.

Project Gallery

Bridgestone

This 750 SF, 2-bedroom, 1.5-bathroom ADU blends comfort, functionality, and thoughtful design. The interior...

View Details

Amberly CT

This 500 SF, 1-bedroom, 1-bathroom ADU combines smart use of space with a clean,...

View Details

Arlington

View Details

Lodge Ct

View Details

Henrietta

View Details

Citrus Ave

View Details