ADU plans for San Diego properties.

Forma helps San Diego property owners turn an ADU idea into a coordinated design and permit-plan scope shaped around the site, intended use, and local review process.

Property review

Start with the San Diego address, available records, existing structures, access, utilities, and your goals.

Site-specific design

Develop a layout and exterior direction around privacy, usability, lot fit, and buildability.

Permit coordination

Coordinate drawings, energy documentation, engineering, and responses needed for the agreed City of San Diego process.

Planning an ADU in San Diego

The City of San Diego publishes an ADU toolkit and development guidance. Properties in another incorporated city or an unincorporated part of San Diego County may be reviewed by a different agency. Forma verifies the applicable jurisdiction and current project requirements during scope development rather than relying on a generic checklist.

Visit the City of San Diego resource →

What to send first

The property address
Your preferred ADU type and intended use
Any existing plans, surveys, permits, or utility information
Desired room count and approximate size
Known access, easement, or existing-building issues

Local and state requirements change. This page is general information, not legal or code advice. Current requirements, fees, and feasibility must be verified for the specific property.

Start with clarity

Start an ADU in San Diego.

Tell us the property location, project type, and what you want the space to accomplish. We’ll review the basics and outline the right next step.

Request a consultation