ADU Construction

We expand your living space with exquisite ADU construction services.

Deco Construction offers top-tier Accessory Dwelling Unit (ADU) design and construction services to maximize your property's value and potential. Whether you are looking to build a detached backyard cottage, execute a garage conversion, or add an attached guest suite, our team brings a fine sense of aesthetics and expansive zoning experience to every ADU project in the South Bay area.

Fine Aesthetics

We blend contemporary design trends with smart, space-saving layouts to maximize your ADU's livability, storage, and natural light.

Premium Craftsmanship

From independent structural foundations to exquisite interior finishes, we use high-quality materials to ensure your ADU is built to last.

Seamless Process

Our step-by-step process handles everything from zoning laws to utility hookups, minimizing disruption to your primary home and completing the job on time.

Building an ADU requires more than just standard construction experience; it requires a dedicated team that understands local city setbacks, height restrictions, and utility requirements. We handle every single aspect of the build, from the initial architectural drawings and permit approvals to the final walk-through, ensuring your newly constructed ADU is exactly what you envisioned.

  • Detached ADU Construction (Backyard Cottages)
  • Garage Conversions (Attached & Detached)
  • Attached Guest House Additions
  • Junior ADU (JADU) Conversions
  • Two-Story ADU Planning & Building
  • Custom Floor Plans & Space Optimization
  • Independent Foundation & Structural Framing
  • Utility Hookups & Electrical Panel Upgrades
  • Full Kitchenette & Bathroom Layouts
  • Title 24 Energy-Efficiency Compliance
  • 3D Architectural Space Previews
  • HOA & City Permit Management

With 25 years of proven excellence, Deco Construction takes pride in delivering the most magnificent detached and attached ADUs. Trust us to increase your property’s value, rental potential, and overall functionality with a building experience that is both rewarding and stress-free.

Other Services

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Building an ADU requires specialized zoning knowledge and expert coordination. Trust Deco Construction for an exquisite and fully compliant backyard home.

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What Makes Us Stand Out?

Our top priority is customer satisfaction and we work closely with clients to understand their unique needs and goals.

Attention to Detail

Every square foot, custom utility line, and interior finish is meticulously checked for spatial efficiency and perfection by our skilled workers.

Safety First

We strictly adhere to the highest local building codes, fire separation rules, and zoning standards to protect your investment and property during the build.

25+ Years Experience

Over two decades of residential building experience allow us to effortlessly navigate the complexities of South Bay city permits and custom ADU regulations.