Service

ADU & Multi-Family Construction

ADU & Multi-Family Construction

Modern detached guest house with large glass doors and landscaped backyard seating area at dusk

About the service

Accessory dwelling units and multi-family residences can provide greater flexibility for families, guests, independent living, or rental use where permitted by local regulations. Casali Companies guides each project from early feasibility and site planning through design, approvals, and construction. We carefully consider privacy, access, parking, utilities, architectural compatibility, and long-term functionality to create a residence that feels thoughtfully integrated with the property rather than added as an afterthought.

Learn more about your property’s potential for an ADU or explore our custom ADUs and in-law suites.

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What’s include in the services?

  • Feasibility & Zoning Review — Evaluating property conditions, setbacks, access, parking, utilities, and local requirements.

  • Site & Space Planning — Determining the most practical location, layout, circulation, and relationship to existing structures.

  • Architectural Design — Developing thoughtful plans that balance privacy, functionality, efficiency, and architectural character.

  • Engineering & Consultant Coordination — Working with structural engineers, civil professionals, and other specialists when required.

  • Permitting & Approval Coordination — Preparing documentation and coordinating applicable municipal reviews.

  • Site, Structural & Building-System Construction — Managing foundations, framing, roofing, utilities, mechanical systems, and the building envelope.

  • Interior Finish Coordination — Guiding cabinetry, fixtures, flooring, lighting, and other selections for a complete living space.

  • Construction Management & Closeout — Overseeing trades, scheduling, quality control, inspections, and final completion.

Luxury bathroom with freestanding soaking tub, glass walk-in shower, marble tile walls, and elegant chandelier lighting

Let’s Work Together

We're here to help you bring your construction project to life! Whether you have questions, want to discuss your ideas.