Skip to main content
LEE & COMPANYCONSTRUCTION
← All services

ADUs & Additions

Transform your property with a custom ADU or seamless home addition. Create new living areas, guest quarters, or income-generating space without leaving the home you love. From design coordination to final finishes, we manage every detail.

Read our guide to what California lets you build →
  1. 01

    Planning & feasibility

    We review your property, goals, access, utilities, and layout options to find the right path: detached ADU, garage conversion, addition, or attached unit.

  2. 02

    Design, plans & permitting

    We coordinate plan development and city submittal, working with designers, engineers, and city departments through corrections, approvals, and permit issuance.

  3. 03

    Full construction

    Site prep, foundation, framing, roofing, windows, doors, electrical, plumbing, HVAC, insulation, drywall, and stucco, managed start to finish.

  4. 04

    Finishes & final inspection

    Cabinets, countertops, flooring, tile, paint, fixtures, final utility connections, and inspection coordination, delivered clean and code-compliant.

Get a quote for your ADUs & additions.

Start your quote

What this covers.

Detached ADUs

Detached ADUs

A standalone unit in the yard: full kitchen, bath, and its own entrance, sized to what your lot and the city allow.

Garage Conversions & Attached Units

Garage Conversions & Attached Units

Converting existing square footage or building off the house, usually the faster and cheaper route to a permitted unit.

Home Additions

Home Additions

Adding on to the house itself: bedrooms, suites, and second stories, tied into the existing structure and systems.