ADU Permit Coordination for New Construction
Understanding and coordinating the permit process for a new ADU — before any construction has started.
Coordinating Permits for a New ADU
Planning and permitting a new ADU generally involves a different starting point than legalizing existing work — there's no existing structure or permit history to research, and the sequence starts with plans rather than documentation of what was already built.
Legal ADU Pro helps homeowners understand the general new-construction permit sequence and helps coordinate the preparation and submittal of permit applications to the appropriate city or county department.
General New-Construction Permit Sequence
- Initial project review — understanding your property, goals, and what type of ADU may fit
- Plans and documentation — coordinating the site plan, floor plan, and any required professional drawings
- Permit submittal — submitting completed plans and documentation to the reviewing jurisdiction
- Plan check and corrections — responding to any questions or correction requests from the building department
- Permit issuance and construction — once approved, construction can begin under the issued permit
- Inspections and final sign-off — inspections during and after construction, leading to final approval
Coordination With Other Professionals
Depending on your project, a new ADU can involve several parties working together — you, the reviewing building department, and often a licensed architect, engineer, surveyor, or contractor. Legal ADU Pro helps identify who is likely needed for your specific project and helps coordinate that process.
Coordinate Your ADU Permit
Legal ADU Pro can help you understand what permit coordination looks like for your new ADU project.
Request a Property Review →Explore planning options for detached, attached, and garage conversion ADU projects.
View New ADU Services →Permit coordination generally follows plans and drafting — see what's typically involved before you submit.
ADU Plans, Drafting & Design →Before coordinating permits, some homeowners want to confirm a new ADU is realistic on their property.
New ADU Feasibility Review →If work is already built without permits, this isn't the right page — see Permit Submittal Coordination for legalization instead.
Legalization Permit Coordination →Questions About New ADU Permit Coordination
In general, it starts with an initial project review and plans, followed by submitting your application to the reviewing city or county building department, responding to any plan check corrections, and completing inspections through final approval. See our ADU plans, drafting & design coordination guide for the step before this one.
New-construction permit coordination starts from plans for work that hasn't been built yet. Legalization permit coordination addresses work that's already built without permits, which can involve additional documentation of existing conditions. If your ADU or structure is already built without permits, see our Permit Submittal Coordination service for legalization instead.
Timelines vary significantly based on the project, the reviewing jurisdiction's current workload, and how complete the plans and documentation are at submittal. An individual review helps set realistic expectations for your specific project.
Legal ADU Pro helps coordinate the preparation and submittal of permit applications and helps you understand the process. Depending on the project, submittal may need to be completed by you, a licensed professional, or another authorized party as required by the reviewing jurisdiction.
Ready to Coordinate Your New ADU Permit?
Request an initial property review and understand what permit coordination typically involves for a new ADU on your property.
Request a Property Review → Call 310-570-2885