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The Better Way to Build an ADU in Tarzana

Turn unused space into a real second home, in 90 days or less.

Build with the confidence of a design-build process refined over 10+ years to eliminate lot surprises, Tarzana permit delays, and stalled construction.

  • No-Obligation
  • Transparent Roadmap
  • Clear Timeline & Budget
Open ADU living area with a blue kitchen island and a black sofa in our Tarzana ADU
Aerial view of a home with a backyard pool and a new two-story ADU in Valley Village
Backyard with an old blue detached garage before our ADU build in West Hills
  • 200+

    Happy customers across Los Angeles

  • Family-Owned

    Eli and Donna stay involved

  • Owner-Led

    From planning through final care

  • Fully In-House

    Design through final care with one team

Planning an ADU

Your Backyard Could Be Earning Rent by Next Year

Picture the finished unit: a tenant paying rent, or family living steps away. Between you and that day sit zoning, setbacks, utilities, and permits. One in-house team carries all of it for you, including:

  • A feasibility check that shows exactly what your lot allows
  • Plans and permits handled for you, with updates at every milestone
  • A defined scope, budget, and schedule before crews start
  • Our own licensed, bonded, and insured crews doing the building
  • A legal, rent-ready finish, backed by a 3-year warranty

You choose who the space is for. We clear the path to move-in day.

Plan My ADU
Completed ADU construction at Braddock Dr. in Culver City

ADU Types We Build

Choose the ADU That Fits Your Lot and Goals

Lot shape, zoning, and budget point to the right type. We build every one of them with the same in-house team.

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Why Choose Us

Discover Why 70%+ of Our Work Comes from Word of Mouth

You want useful space. You should not have to coordinate every step alone.

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Permits, Plans, and City Coordination

Los Angeles remodeling often means permits, plan check, inspections, and coordination with city requirements. We keep those steps connected to the design and construction plan so they do not become a separate burden for you.

  • We review permit needs early.
  • We coordinate plans and documentation with the remodel scope.
  • We treat inspections as part of the process, not an afterthought.
  • We connect design decisions to build requirements through one accountable team.
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Scope Clarity Before Construction

Budget surprises usually begin with unclear scope. We help define the work, identify construction realities, and connect finish choices to the plan before the job is underway.

  • We discuss the scope before work begins.
  • We clarify material priorities early.
  • We surface potential cost drivers during planning.
  • We explain changes before moving forward.
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A Schedule Based On Real Work

We organize the schedule around the real construction sequence: planning, ordering, permits, demolition, trades, inspections, finishes, and final details.

  • We connect milestones to actual work phases.
  • We coordinate trades through one accountable team.
  • We communicate delays and decisions clearly.
  • We include the final walkthrough in the schedule.
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Communication Without Chasing

You should not have to chase a contractor to understand your own remodel. We keep decisions, milestones, and construction updates visible.

  • We provide regular updates during active work.
  • We clarify the decisions you need to make next.
  • We keep design and construction connected through one team.
  • Our owners stay involved through key project moments.
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ADU Projects

Homes Their Owners Are Proud to Show

See what the Quality First commitment looks like in practice, from garage conversions to detached backyard units.

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Compact blue ADU kitchen with a built-in washer and dryer in our Tarzana ADU

01

ADU Construction in Tarzana

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    ADU kitchen with a white island, bar stools and blue tile backsplash in our Woodland Hills ADU

    02

    ADU Construction in Woodland Hills

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      ADU kitchen with bright blue cabinets and stainless appliances in our West Hills ADU

      03

      ADU & New Construction in West Hills

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        ADU kitchen with a herringbone tile island, copper pendants and a wine fridge in Valley Village

        04

        ADU Construction in Valley Village

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          Our Story

          One Team Shapes the Plan and Builds the Space

          That connection helps the ADU feel complete, useful, and ready for daily life.

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          More about us
          Eli and Donna of Quality First Builders

          What the Connected Team Handles

          • Goals and property fit.
          • Layouts and design direction.
          • Plans and approvals.
          • Materials and key selections.
          • Construction and active-work updates.
          • Final walkthrough and care.
          • Written warranty support.

          Our Process

          A Clear Path From First Idea to Finished ADU

          One process connects fit, design, approvals, selections, construction, and final care.

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          1. Scope Review and Consultation

            We start with your lot and your goal: rental, family, or flexibility. A feasibility review shows what the property allows before anyone draws.

          2. Design, Scope, and Budget Planning

            The design squeezes real living from compact square footage: storage, light, privacy. Every choice gets priced against utilities and structure as it is made.

          3. Plans, Permits, and Schedule

            Plans, zoning review, and permits with the City of Los Angeles move as one file. We handle review comments and revisions; you decide only the real decisions.

          4. Construction and Updates

            Construction runs on our own crews with daily updates. Each inspection lands on schedule because the sequence plans for it.

          5. Final Walkthrough and Completion

            The final walkthrough covers kitchen, bath, systems, and finishes. Qualifying projects close with a 3-year warranty in writing.

          FAQ

          Clear Answers Before You Commit

          Learn about proof, timing, warranty, plans, costs, design, updates, and final care.

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          What ADU project proof can I review?

          Our Erwin Street ADU is right here in Tarzana. You can see the city, scope, and finished result for each one, on this page and in our gallery.

          What do the 90-day offer and warranty cover?

          The 90 days covers qualifying ADU construction after permits or approvals and site readiness. It excludes the design and approval period. Qualifying projects include a 3-year warranty, and we explain the written coverage before work begins.

          Do I need finished plans before I call?

          No. The property and your goals are enough to start. Owners often call us before any designer or drawings; the first conversation sets the next step.

          Who builds the ADU?

          Our own crews, under our California contractor license. We are a licensed general contractor and ADU builder in one company, so plans, permitting, inspections, and construction stay connected. No handoffs between separate contractors or a chain of subcontractors.

          Can an ADU support rental use or family housing?

          When the property and project qualify, rental use may be possible; we promise no income or returns. Just as often the unit houses parents, adult children, or a caregiver. Flexible housing is the constant either way.

          What changes the cost?

          Size, layout, utilities, access, site needs, materials, cabinetry, and approval requirements can affect cost. We give a written estimate once the scope is defined, and we explain what drives it.

          What changes the schedule?

          Approvals, site readiness, utilities, scope, materials, each inspection, and outside agencies can affect timing. Permitting with the City of Los Angeles moves at the city's pace. Compliance issues found late slow things most, so we surface them early.

          Do you convert garages too?

          Yes. A garage conversion is often the fastest ADU path, and some properties support an above-garage unit instead. The right route depends on the structure, site, and approvals.

          Do you only work in Tarzana?

          No. We build ADUs across the area, including Encino and Woodland Hills and the wider Los Angeles residential market. More than a decade of ADU and remodeling experience travels with the same crews.

          What happens after construction?

          We complete a final walkthrough, review the finished space, and explain warranty care.

          Free Consultation

          Plan the Right ADU Path for Your Tarzana Property

          Tell us who the ADU is for and what you want it to change. No finished plans are needed.

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          • No-Obligation Consultation
          • Transparent Project Roadmap
          • Clear Timeline & Budget
          • Permits Handled For You
          • Design Guidance Included
          • Direct Access to Eli & Donna
          • Fully Managed From Start to Finish