California design + permitting

ADU plans shaped around your property.

Detached, attached, interior, and garage-conversion ADUs need more than a floor plan. We coordinate the site, design, documentation, and consultants needed for a complete permit path.

ADU scope

From backyard idea to coordinated package.

We begin with your property, your intended use, and the reviewing jurisdiction. Then we build a plan around access, privacy, utilities, existing structures, buildability, and the documents required for review.

01

Feasibility + site fit

Review of available property information, project goals, likely constraints, and possible directions.

02

Custom design

Floor plans and exterior concepts developed for the site—not a generic one-size-fits-all promise.

03

Permit documentation

Coordinated drawings, schedules, details, and consultant inputs prepared for agency review.

What may be coordinated

  • Existing conditions and site plan
  • Floor plans, roof plan, elevations, and building sections
  • Door, window, finish, and equipment information as appropriate
  • Title 24 energy documentation through a qualified provider
  • Structural calculations and details through a licensed engineer
  • Licensed architect review or stamp where the project requires it
  • Agency comments and drawing revisions within the agreed scope
Concept imagery and sample plans on this site are illustrative. Every property and jurisdiction is different; final scope, code requirements, fees, and approvals are determined after project review.

Common questions

Do you sell permit-ready stock plans?

We show concept layouts for inspiration, but a permit package must be adapted to its property, jurisdiction, utilities, and required consultant work.

Can Forma submit the permit?

Permit coordination and submittal support are available as part of an agreed project scope. Owner signatures, fees, and jurisdiction-specific processes still apply.

Do you provide engineering and Title 24?

Forma coordinates qualified structural and energy professionals when required. Their services and deliverables are defined in the project proposal.

Start with clarity

Planning an ADU?

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.