Custom Attached ADU Construction in Los Angeles
Expand your home’s footprint and value with a professionally integrated living unit. From Junior ADUs (JADU) to full-scale additions, we design and build permitted attached spaces that perfectly match your home’s existing architecture and style. Request a Feasibility Study.
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The Benefits of Attached ADU Additions
HOME EXPANSION EXPERTS
An attached ADU is the ultimate solution for homeowners looking to expand their living space without sacrificing backyard acreage. Unlike standalone units, an attached addition becomes a physical part of your primary residence, offering a seamless transition between the two spaces. This approach is ideal for multi-generational living, providing a private, fully permitted suite for family members while keeping them close. Our team specializes in architectural integration, ensuring that every addition — whether it’s a new wing or a Junior ADU (JADU) — perfectly matches your home’s original style, roofline, and exterior finishes for a cohesive, high-end look.
Featured Attached ADU & Home Addition Projects
Right Here in Los Angeles
Browse our gallery of seamless home expansions and attached guest houses across Los Angeles. We specialize in architectural integration, ensuring every addition matches your home's original style while adding modern, fully permitted living space.
Seamless Home Expansion Process
OUR PROVEN SYSTEM
Adding an attached ADU to your primary residence is a sophisticated engineering task that requires a deep respect for your existing home. At Kobzev Pro Contracting Group, we’ve refined our home addition workflow into a precise, transparent system designed to minimize disruption to your daily life while maximizing your property’s potential. We don’t just build a room; we expand your home’s story.
Our expertise lies in the “surgical” connection of new structures to old ones — ensuring that foundation ties, roofline transitions, and utility integrations are flawless and long-lasting. Our project managers oversee every phase, from custom architectural drafting that matches your home’s character to securing specific LADBS permits for residential additions. We ensure a clean job site and a predictable timeline, giving you the confidence that your new living space will be delivered with the highest levels of integrity and craftsmanship.
Step 01:
Structural & Connection Audit
We start by evaluating your home’s existing foundation, roofline, and load-bearing walls. Our engineers plan the most secure way to tie the new ADU into your current structure, ensuring a seamless transition and long-term stability for the entire building.
Step 02:
Architectural Matching & Permits
Our architects design an addition that looks like it was always part of your home. We handle all the complex permitting paperwork with the City of Los Angeles, focusing on zoning, setbacks, and fire safety codes specific to attached residential units.
Step 03:
Precision Framing & Integration
This is the critical phase where the addition meets the main house. Our licensed crews perform high-precision framing and structural tie-ins, ensuring weather-tight seals and perfectly matched exterior finishes that blend with your home’s original aesthetic.
Step 04:
Interior Finishing & Delivery
The final stage focuses on creating a move-in-ready living space. From electrical sub-panels to premium interior finishes, we ensure your new attached ADU is fully functional. After the final city inspection, we hand over the keys to your beautifully expanded home.
Why Homeowners Choose Us for Home Additions
Building an addition is a highly personal project that requires a contractor who respects your home’s history and structural integrity. At Kobzev Pro Contracting Group, we specialize in seamless attached ADUs that offer perfect architectural harmony with your primary residence. As a fully licensed B-General Contractor based in Van Nuys, we understand the specific engineering challenges of residential expansions in the San Fernando Valley. When you choose us, you are partnering with a team dedicated to clean job sites, transparent communication, and superior craftsmanship, ensuring your new living space feels like it was always part of your home.
Seamless Architectural Design
Matching an addition to an existing home is an art. We manage every detail—from matching rooflines and siding to interior trim and window styles — ensuring your attached ADU is 100% compliant with LADBS residential and fire safety codes.Transparent Fixed Pricing
Home additions shouldn't be a financial guessing game. We provide detailed, line-item estimates after a comprehensive structural audit of your primary residence. We value-engineer your project to prevent surprise change orders and protect your investment.Structural Integration Guarantee
We prioritize the long-term health of your home. Using surgical structural ties and high-performance weatherproofing, we ensure your addition is energy-efficient and built to last. We stand behind our work with a comprehensive warranty for your peace of mind.
Frequently Asked Questions
Planning an ADU, kitchen, or bathroom in LA? Get expert answers to start your project right.
In most Los Angeles areas, especially those near public transit, current California law (SB 9 and ADU mandates) eliminates the requirement to replace covered parking when converting an existing garage. This makes the process much more affordable and feasible for most homeowners.
Yes! State laws encourage ADUs for rental housing. You can rent it out long-term to generate passive income immediately.
In Los Angeles, the permitting process usually takes 2 to 4 months, depending on the city’s backlog. Once permits are issued, construction takes another 3–4 months.
While your property taxes will be reassessed based on the value of the new improvements, your primary home’s tax base remains protected. Under Proposition 13, only the value of the new ADU is added to your tax bill, not the entire property’s market value.
Absolutely. We are a full-service design-build company. This means we handle the entire process, including architectural drawings, engineering, and navigating the Los Angeles Department of Building and Safety (LADBS) to secure all necessary permits for your ADU or remodel.
Yes, Kobzev Pro Contracting Group is a fully licensed B-General Building Contractor in the State of California. We carry full General Liability insurance and Worker’s Compensation coverage to protect your property and our team throughout the entire project.
Seamlessly Integrate Your New Living Space
family’s needs. Whether you’re planning a private suite for parents or a high-end Junior ADU (JADU) for rental income, Kobzev Pro Contracting Group team are here to handle the entire journey. From matching your current architecture to securing complex structural permits, we ensure a stress-free expansion that adds lasting value to your Los Angeles property.
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