Expert One-Story Detached ADU Builders in Los Angeles
In the dense urban landscape of Los Angeles, space is the ultimate luxury. For many homeowners, the solution to cramping lifestyles or the need for multi-generational housing lies right in their own backyard. At Ground Up Builders, we specialize in designing and constructing high-quality One-Story Detached Accessory Dwelling Units (ADUs).
Unlike a garage conversion or an attached addition, a detached single-story ADU is a truly independent home. It stands alone, providing maximum privacy for tenants or aging parents while significantly increasing the overall value of your property. As a premier general contractor in Southern California, we manage the entire lifecycle of your project, from the initial soil test and architectural design to the final coat of paint, ensuring your new unit is built on a solid foundation of trust and expertise.
The Advantages of Single-Story Detached Living
While two-story units have their place, the single-story detached ADU remains the gold standard for versatility and long-term utility in Los Angeles.
Universal Design and Aging in Place
Preservation of Privacy
Streamlined Construction and Permitting
Navigating Los Angeles Zoning and Regulations
Building a “ground-up” structure requires navigating a complex web of state and local codes. Ground Up Builders acts as your expert liaison with the Los Angeles Department of Building and Safety (LADBS) and local planning divisions.
Key Standards for Detached ADUs:
- Setbacks: Under current California state law, a detached ADU generally requires side and rear setbacks of only 4 feet. This allows us to tuck the unit into tight backyard corners while maximizing the remaining yard space.
- Size Limits: Most jurisdictions allow detached ADUs up to 1,200 square feet, regardless of the size of the primary dwelling, provided standard setbacks are met.
- Height Restrictions: Generally, a single-story detached ADU is limited to a height of 16 feet. However, recent updates allow up to 18 feet if the property is within a half-mile of major transit stops or on a multi-family lot with a multi-story building.
For the most current information on state ADU laws, you can reference the California Department of Housing and Community Development (HCD).
Custom Design Features for Modern Living
We don’t believe in “cookie-cutter” boxes. Your ADU should complement the architectural style of your main house, whether it is a Spanish Colonial in Mid-City or a Mid-Century Modern in the Valley.
Popular Design Inclusions:
- Vaulted Ceilings: Since there is no second floor above, we can open up the ceilings to create volume and airiness.
- Large Slider Doors: We frequently install multi-panel sliding glass doors that open onto a private patio, creating an indoor-outdoor flow that effectively doubles the living area.
- Full-Size Kitchens: Unlike a kitchenette, our custom ADUs feature full-sized appliances, quartz countertops, and custom cabinetry, making them fully functional for long-term tenants or family members.
STUNNING ONE-STORY DETACHED ADUs
Transform your property from underutilized space to a distinctively charming retreat with our detached one-story ADU services. Whether it’s a need for more living space or a desire for a private backyard sanctuary, we take your vision and turn it into reality. From the initial site planning to the final custom construction, we create stunning, functional living spaces that perfectly blend modern comfort and seamless architectural integration. Experience the incredible depth and character as we revitalize your landscape into a warm, inviting masterpiece.
Get a Free Beadboard Kitchen Cabinets Estimate
The "Ground Up" Construction Process
The name Ground Up Builders reflects our philosophy: we control every phase of construction to ensure structural integrity and aesthetic beauty. Building a detached home is a major construction project that involves trenching, pouring new foundations, and running new utility lines.
1. Feasibility and Site Prep
We begin by assessing your lot’s soil conditions and utility access. Since a detached ADU requires its own sewer, water, and electrical connections (often tying into the main lateral), we identify the most efficient trenching routes early to minimize disruption to your landscaping.
2. Foundation and Framing
A durable home starts with a solid foundation. We typically pour a reinforced concrete slab-on-grade foundation that meets rigorous seismic standards for Southern California. Once the concrete cures, we frame the structure using high-grade lumber, defining the vaulted ceilings and open layouts that make 1,000 square feet feel like 1,500.
3. Title 24 and Energy Efficiency
California’s Title 24 energy standards are among the strictest in the nation. New detached ADUs are generally required to have solar panels installed. We integrate these systems into the roof design seamlessly. Additionally, we install high-performance insulation, cool roofs, and energy-efficient windows to ensure the unit stays cool during LA heatwaves without racking up massive utility bills.
You can learn more about energy efficiency standards for new residential construction at the California Energy Commission.
Start Your Backyard Transformation
A detached ADU is more than just extra square footage; it is an investment in your family’s future and your property’s financial potential. At Ground Up Builders, we combine decades of Los Angeles construction experience with a personalized approach to design-build. We handle the heavy lifting, zoning, permits, and construction, so you can focus on how you will use your beautiful new space.
Ready to break ground on your new backyard cottage? Contact us today for a complimentary site consultation and feasibility estimate.
100% Financing Now Available
Ground Up is an approved contractor for a number of financing programs, many that the competition isn’t qualified to offer — meaning, we’re able to help you find the best rate in town.
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