
Before finalizing your ADU plans, it’s crucial to align architectural design with your budget and local building codes. This stage often involves hiring an architect/designer, interviewing contractors, and revisiting cost estimates to ensure everything stays on track.
CHECKLIST
Architectural Plans

Hire or consult an architect/designer with ADU experience.
Ensure plans comply with local building codes and fit within your budget constraints.
Contractor Interviews & Quotes

Obtain multiple bids; verify licenses, insurance, and references.
Compare timelines, material costs, and payment schedules.
Discuss sustainability goals or energy incentives with your architect/contractor.
Review or negotiate key contract clauses (e.g., change orders, dispute resolution).
Preliminary Floor Plan & Layout

Decide on room sizes, access points, and potential shared walls/utilities.
Refine Budget

Incorporate contractor quotes and updated design requirements.
Revisit contingency if design changes add costs.
Process Map

As you choose your design and contractors, revisit your goals. Does the chosen design support your long-term living arrangements or financial strategies?
Explore these tools to better understand zoning, evaluate design options, and choose a reliable builder who fits your project goals and budget.