Design. Build. Remodel. License# 1148495
Attached ADU

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.

  • Licensed & Insured

  • Transparent Pricing

  • Design & Permits

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Attached ADU before
Attached ADU after

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.

  • 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.

  • 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.

  • 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.

  • 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.

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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.

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  • 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.

Not necessarily. We conduct a structural assessment to ensure your existing slab can support the new living space. If needed, we perform minor retrofitting or moisture barrier installation to meet modern California residential building codes.

While every project is unique, a standard Garage Conversion in Los Angeles typically takes 2 to 4 months for construction, once permits are issued. The permitting phase can take an additional 2–4 months depending on the city’s current backlog. We provide a detailed timeline before we start.

Yes — a permit from the Los Angeles Department of Building and Safety (LADBS) is required to build any ADU in Encino, CA. Encino falls under the jurisdiction of the City of Los Angeles, and all ADU construction must comply with LA’s zoning regulations, California Building Code, and current state ADU laws. Required permits typically include a building permit, electrical permit, plumbing permit, and mechanical permit.
The permitting process involves submitting architectural plans, a site plan, and supporting documentation to LADBS. Plan check review currently takes 8 to 14 weeks in most cases, depending on project complexity. Kobzev Pro handles the entire permitting process on your behalf — from preparing the drawings to responding to city corrections — so your project stays on track without you having to navigate the bureaucracy.

A garage conversion to ADU in Encino typically takes 4 to 7 months from the initial consultation to final city inspection. The timeline breaks down into three main phases: design and planning (2 to 4 weeks), LADBS permit review (8 to 14 weeks), and construction (6 to 10 weeks depending on scope).

The permitting phase is usually the longest part of the process and is largely outside the contractor’s control — LADBS plan check timelines vary by project complexity and current workload. Kobzev Pro submits complete, accurate permit packages to minimize the risk of corrections that add weeks to the review. Once permits are issued, a typical garage conversion construction phase runs 6 to 10 weeks for a standard single-car garage conversion with a bathroom and kitchen.

Yes, typically a garage conversion costs 20% to 40% less than a ground-up detached ADU. Since the foundation, walls, and roof are already in place, you save significantly on structural materials and labor, allowing you to invest more in high-end interior finishes.

ADU construction costs in Los Angeles vary based on the project type, square footage, and chosen finishes. At Kobzev Pro Contracting Group, we offer transparent, value-driven pricing to help you maximize your ROI:

  • Garage to ADU Conversions: Pricing typically starts at $250 per sq. ft. Since we leverage your existing structure, this is the most cost-effective way to add a legal living unit to your property.
  • New Ground-Up ADU Construction: For detached or attached units built from scratch, pricing starts at $300 per sq. ft. This covers complete site preparation, new foundation, framing, and full utility integration.

Please note: These are baseline investment figures for standard designs. Final pricing depends on your specific architectural choices, material selections (Standard vs. Luxury), LADBS permit fees, and the complexity of utility hookups. Contact us for a detailed, line-item estimate tailored to your lot.

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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