Resources and Insights

This resource library helps homeowners prepare for an ADU, garage conversion, addition, or major remodel. Start with the guide that matches your proposed work, then use the planning questions to organize a consultation. Published costs are planning information rather than a quote for your property. Existing conditions, design, utilities, access, finishes, and required reviews can change the scope. Bring your address and available plans so those assumptions can be examined.

Explore our 2026 ADU budget guide and interactive ADU planning checklist. Separate construction from design, agency fees, utilities, investigation, and selected finishes. A conversion also requires an assessment of the existing garage. Compare these resources with our ADU construction and garage conversion services before deciding which project to pursue.

An addition should be coordinated with the existing structure and how the household uses the home. A remodel may also require a sequence that preserves access to essential rooms. Review our home addition and whole-home remodeling pages for scope questions. For outdoor work, compare the planning factors on our swimming pool and paver installation pages. Identify which improvements need to be coordinated as one project.

Check the date, author information, and scope of each guide before applying it to your project. Agency requirements and product availability can change; general information should be confirmed for the actual address and approved design. Learn about Simon Mulla and Cali Builders, and browse the articles below for more detail. When you are ready, request a consultation with your goals, photographs, approximate budget, and preferred timing.