Urbatect Development, LLC – ADU Contractor and Custom Home Builder in California
Urbatect Development, LLC is a full-service design, permitting, and construction firm serving homeowners and industry professionals across California and Washington. With over 15 years of experience and more than 3,500 completed projects, they offer an integrated approach that covers every phase of a build — from initial feasibility through to final inspection — under one roof.
Their services span custom homes, room additions, and accessory dwelling units (ADUs). As an established ADU contractor and ADU builder, Urbatect manages the entire process with fixed pricing and no hidden fees. Their permitting process is reported to move up to 30% faster than industry standards, and they use advanced 3D visualizations to help clients understand what their finished project will look like before construction begins.
Types of ADUs Urbatect Builds
Urbatect works across all major ADU categories, making them a versatile accessory dwelling unit builder for a wide range of property types and homeowner goals. The types of ADUs they handle include:
- Attached ADUs – Connected to the main home, typically as a side or rear addition, with a separate or shared entrance.
- Junior ADUs (JADUs) – Built within the existing home's footprint, up to 500 sq. ft. As a JADU contractor, Urbatect handles the design and permitting for these smaller, more affordable units.
- Detached ADUs – Fully independent structures on the same lot as the primary home. These include backyard cottages, studio units, casitas, and converted outbuildings. As a detached ADU builder, Urbatect designs these for maximum privacy and rental income potential.
- Interior ADUs – Conversions of underused interior spaces such as basements, attics, or entire floors into separate living units.
- Garage Conversions – As a garage conversion contractor, Urbatect transforms attached or detached garages into livable ADUs. Under California law, homeowners are generally not required to replace lost parking when converting a garage, making this a cost-effective option. Second-story additions above garages are also possible.
ADUs are also commonly referred to as granny flats, in-law suites, or backyard cottages. They are self-contained units with their own kitchen, bathroom, and entrance, suitable for housing family members, hosting guests, or generating rental income.
Custom ADU Design and Build-Ready Plans
Urbatect offers both fully custom ADU designs and a library of build-ready ADU floor plans. Their in-house design team works directly with homeowners to develop plans that align with site conditions, local zoning regulations, and budget requirements. For those who want a faster path to construction, their pre-designed plans can be selected as-is or modified to better suit the property.
For custom projects, the team handles everything from the initial sketch and ADU plans through permitting and construction. This eliminates the need for homeowners to coordinate between separate architects, permit expediters, and contractors. The process is designed to be straightforward, with transparent pricing from the start.
Urbatect also connects clients with vetted, ADU-experienced lending partners to help with financing. They are not a lender or financial advisor, but they can facilitate introductions to licensed lending partners and help clients understand the overall project costs before committing. Factors such as home equity, income, property details, and project readiness are all considered when helping clients prepare for the financing process.
Urbatect Development, LLC operates throughout California and Washington, serving both individual homeowners and industry professionals on projects of varying scale and complexity.