An attached ADU (Accessory Dwelling Unit) is a secondary living space that is seamlessly connected to your primary residence. It provides a private, self-sufficient unit with its own entrance, kitchen, bathroom, and living area, making it an ideal solution for extended family, rental income, or additional personal space.
Homeowners opt for attached ADUs for their cost-effectiveness, efficient use of space, and ability to enhance property value. Whether you’re looking for a multi-generational living arrangement or an investment opportunity, an attached ADU offers a practical and profitable solution.
Our expert team creates comprehensive house plans with attached ADU configurations tailored to your property’s unique characteristics, site conditions, and lifestyle goals. We develop detailed attached ADU floor plans that maximize space efficiency, natural light, and privacy—while ensuring full compliance with California building codes and zoning requirements.
We specialize in a variety of attached ADU design solutions, including:
Garage conversions – Transform your existing garage into a modern, livable space.
Basement apartments – Make use of lower-level square footage with smart, code-compliant layouts.
Side or rear home extensions – Expand your home seamlessly to accommodate an attached ADU.
Above-garage ADUs – Add vertical living space without sacrificing your yard.
A well-designed attached ADU should feel like a natural extension of your main residence—not an afterthought. Our design team focuses on architectural cohesion, ensuring that every new element, from the roofline to exterior finishes, complements your home’s original style.
We take into account structural alignment, window placement, and interior flow to create a unified space that feels connected yet independent. Whether the ADU is built as a side addition, over the garage, or as a rear extension, we preserve the visual and functional harmony of your property.
By blending architectural aesthetics with smart spatial planning, we help homeowners maximize both curb appeal and interior usability—so the ADU looks and feels like it’s always been part of your home.
Ataman Studio provides expert design and construction services for attached ADUs (Accessory Dwelling Units) across California. We proudly serve homeowners in Los Angeles, San Jose, Los Gatos, Santa Clara, Sunnyvale, Cupertino, Los Altos Hills, and surrounding areas.
Our experienced team guides you through every stage—from custom design to final construction—ensuring full compliance with local building codes and zoning requirements specific to your community.
Navigating attached ADU requirements in California can be complex due to varying state and local regulations. At Ataman Studio, we stay up to date with all statewide standards and municipal codes to ensure your project complies with zoning laws, setbacks, height limits, parking requirements, and utility connections. Our team handles the entire permitting process on your behalf—from preparing construction documents to coordinating with local planning departments—so you can move forward with confidence knowing your attached ADU meets all legal requirements and is approved for construction.
| Feature | Attached ADU | Detached ADU |
|---|---|---|
| Cost | Lower due to shared utilities | Higher due to standalone infrastructure |
| Privacy | Closer to main home, slightly less private | Fully separate, more independent |
| Space Usage | Utilizes existing home structure | Requires additional land space |
| Rental Income | Convenient but limited space | Higher rental potential |
We begin with an in-depth consultation to understand your goals and assess your property. Our team evaluates the available space, layout possibilities, and any site-specific challenges to determine if an attached ADU is the right fit.
We also help you explore financing options such as home equity loans, personal loans, or local ADU incentive programs.
We research your city’s zoning laws, setback requirements, height limits, and other restrictions. This step ensures your project will meet all local regulations and qualifies for permitting.
Based on your preferences and site specifics, we create a custom layout that integrates seamlessly with your existing home. We prioritize smart use of space, functionality, and aesthetics.
Our team prepares and submits all necessary plans and paperwork to your local planning department. We track the permit status and handle revisions or city requests to ensure fast approval.
We work closely with trusted attached ADU contractors who handle the construction process. While they manage the build, our team oversees progress to ensure everything stays true to the approved design and meets our quality standards.
Once construction is complete, we schedule all required inspections and walk you through the finished ADU. We ensure it meets code, looks great, and is ready for use—whether for family, guests, or tenants.
Ready to expand your home’s potential? Whether you’re creating extra room for family or investing in rental income, our team will make your Attached ADU project seamless and stress-free — from concept to final inspection.
Schedule a free consultation today and take the first step toward building your custom ADU.
