Opens in a new tab
Design. Build. Remodel. License# 1148495
Detached ADU

Custom Detached ADU Construction in Los Angeles

Design and build a standalone, fully independent guest house that maximizes your property’s potential. From custom architectural plans to premium construction and city permits, we deliver turnkey backyard homes tailored to your lifestyle. Schedule a Site Consultation.

  • Licensed & Insured

  • Transparent Pricing

  • Design & Permits

Call Us (747) 350-3315

Get a Free Estimate

Service Quote Form
Backyard Cottage before
Adu interior

Ground-Up Construction Excellence

OUR PROVEN SYSTEM

Building a detached ADU is a major investment that requires expert orchestration of multiple trades. At Kobzev Pro Contracting Group, we’ve refined the ground-up construction process into a transparent, phase-based system that eliminates guesswork and minimizes stress. From the initial soil evaluation to the final coat of paint, we provide a predictable roadmap for your new backyard home.

We specialize in the complex technical requirements unique to standalone structures in Los Angeles—including site grading, new foundation pouring, and independent utility connections. Our dedicated project managers handle every detail: custom architectural drafting, the entire LADBS permitting cycle, and full-scale construction management. We are committed to delivering a high-performance, energy-efficient living unit that seamlessly integrates into your property while meeting the highest industry standards for quality and safety.

  • Site Feasibility & Utility Planning

    We begin with a deep dive into your property’s lot lines, setbacks, and utility access. Our experts evaluate the ground conditions and plan the most efficient route for new sewer, water, and electrical lines to ensure a solid foundation for your standalone ADU.

  • Custom Design & Permit Approval

    Our architects design a custom floor plan that maximizes your available space and sunlight. We manage the full bureaucratic cycle with the City of Los Angeles, securing all structural and zoning permits so your project remains 100% legal and compliant.

  • Full Ground-Up Construction

    This phase covers everything from foundation pouring and framing to roofing and exterior finishes. Our licensed crews build your new ADU with precision, following strict California building codes and ensuring every structural element is built to last for generations.

  • Interior Finishing & Final Sign-Off

    The final stage brings your vision to life with premium cabinetry, flooring, and modern fixtures. After passing all final city inspections, we perform a detailed walkthrough to ensure every detail is perfect before handing you the keys to your new backyard home.

Kobzev Aleksey

Why Homeowners Choose Us for Custom ADU Builds

Building a standalone home from the ground up requires a contractor who understands the full complexity of modern residential engineering. At Kobzev Pro Contracting Group, we specialize in high-performance detached ADUs that offer uncompromising quality and architectural synergy with your primary residence. As a fully licensed B-General Contractor based in Van Nuys, we take pride in serving our neighbors across the San Fernando Valley and Los Angeles with integrity and precision. When you choose us, you are partnering with a team dedicated to transparency, safety, and superior craftsmanship, ensuring your new backyard home is built to the highest standards.

Request a Quote
  • Design & Permit Mastery

    Navigating the architectural and permitting phase for new construction is complex. We manage every detail—from soil reports to LADBS setbacks and zoning compliance—ensuring your standalone project stays on schedule and meets all California residential codes.
  • Guaranteed Fixed Estimates

    New ground-up builds shouldn't come with financial surprises. We provide comprehensive, line-item estimates after a thorough site evaluation. By value-engineering your project from the start, we eliminate hidden costs and ensure your investment is protected.
  • Engineered for Longevity

    We build homes, not just units. From reinforced foundations to high-efficiency climate control and premium insulation, we stand behind our structural integrity with a comprehensive warranty. We ensure your ADU remains a valuable, low-maintenance asset for decades.

Frequently Asked Questions

Planning an ADU, kitchen, or bathroom in LA? Get expert answers to start your project right.

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 — in most cases, Encino homeowners can legally convert an attached or detached garage into a fully permitted ADU. California state law (effective since 2020 and strengthened by subsequent legislation) requires the City of Los Angeles to approve garage conversion ADUs on single-family lots that meet basic requirements. Under current LA regulations, you are generally not required to replace the parking space you remove when converting a garage to an ADU, which makes this one of the most accessible ADU options available.

To qualify, the garage typically needs to meet minimum ceiling height requirements, be connected to the property’s utility systems, and comply with setback rules. Interior upgrades — insulation, drywall, HVAC, plumbing if a bathroom is added, and electrical — are standard parts of the conversion. Kobzev Pro specializes in garage-to-ADU conversions throughout Encino and handles every phase: structural assessment, architectural plans, LADBS permits, and full construction.

No — Santa Monica is an independent city with its own Building & Safety Division under the Community Development Department (CDD). ADU permits in Santa Monica are submitted to the City of Santa Monica, not to the Los Angeles Department of Building and Safety (LADBS). Santa Monica’s ADU regulations are governed by the Santa Monica Municipal Code (SMMC § 9.31.025) and California state ADU law. Additionally, most properties in Santa Monica — particularly those south of the I-10 freeway — are located within the California Coastal Zone and require a Coastal Development Permit (CDP) in addition to standard building permits. This adds a layer of review not required for ADU projects in other Los Angeles neighborhoods. Kobzev Pro manages the full permit process with the City of Santa Monica, including CDP applications where applicable.

Building an ADU in Encino, CA typically costs between $150,000 and $400,000 or more, depending on the type of unit, size, and level of finishes. A garage conversion is the most affordable option, generally ranging from $80,000 to $150,000, since the existing structure eliminates foundation and framing costs. A detached ADU built from the ground up on an Encino lot typically runs $200,000 to $400,000+, depending on square footage and design complexity. Attached ADUs fall somewhere in between.
Several factors affect the final cost: lot conditions, utility connections, architectural design, permit fees, and material selections. In Encino — where average home values exceed $1.5 million — a well-built ADU commonly adds $300,000 to $500,000 in property value, making the investment especially strong. Use our ADU Cost Calculator to get a quick ballpark estimate based on your specific project type and size. For a precise, fixed-price proposal, Kobzev Pro offers free in-home consultations with no obligation.

We trench new lines for sewer, water, and electricity directly to the main house or a separate meter. We manage all coordination with LADWP and the city.

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.

Start Your Ground-Up ADU Project Today

Stop dreaming about a guest house and start building your property’s legacy. Whether you need a high-yield rental or a private luxury retreat, Kobzev Pro Contracting Group team provide the engineering expertise and design vision to make it happen. From site grading to the final walkthrough, we handle the entire ground-up journey for you.

Alex

Project estimator
with years of
experience.

Alex vesa photo
Quote Form

OUR SPECIALIZATIONS

Explore Our Additional ADU & Remodeling Services