Modern California kitchen remodel with travertine waterfall island by Master in Design, Tarzana CA

Spa master bathroom remodel with brass fixtures by Master in Design, Tarzana CA

Open-plan whole-home remodel in modern California style by Master in Design, Tarzana CA

Room addition with steel-frame windows by Master in Design, Tarzana CA

Backyard remodel with indoor-outdoor flow by Master in Design, Tarzana CA

Master in Design: design + build since 2012

Custom Homes, ADUs, Additions & Remodeling in Tarzana

Custom homes, ADUs and room additions, plus the kitchens, bathrooms and full-home renovations we have built since 2012. One family-owned design-build team across Tarzana, Encino, Woodland Hills and the greater Los Angeles area.

When you remodel with Master in Design, one accountable team handles design, permits, build and finish, so nothing falls between trades. We have been transforming homes across Tarzana and the greater Los Angeles area since 2012, and our CSLB-licensed (#979219), bonded and insured team brings both a designer’s eye and a builder’s hands to every project.

Whether you are building a new custom home, adding a permitted ADU, putting on a room addition or rebuilding the entire house, we deliver work that holds up: beautifully designed, properly permitted, finished to spec, on time and on budget.

New construction

Custom Homes

Ground-up custom homes, tear-down rebuilds and wildfire rebuilds, from plans and permits to final inspection.

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ADUs

ADU Construction

Detached ADUs, garage conversions and junior ADUs, each with its own kitchen, bath and entry.

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Additions

Room Additions

Primary suites, family rooms, bump-outs and second-story additions, built to match your home.

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Kitchen

Kitchen Remodeling

Layouts, cabinetry, countertops and lighting tailored to how you cook and host.

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Bathroom

Bathroom Remodeling

From spa-style master baths to functional everyday upgrades, designed and built end to end.

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Whole-home

Complete Home Remodeling

Whole-home renovations with one trusted team: design, permits, build, finish.

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Windows & doors

Windows & Doors

Replacement windows and entry doors that improve curb appeal and energy efficiency.

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Outdoor

Backyard Remodeling

Outdoor kitchens, pavers, turf, pools and cement work for the backyard you actually use.

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General

General Remodeling

Flooring, plaster, carpentry, electrical and plumbing, with one accountable team for any room.

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Exterior

Exterior Painting

Full exterior repaints, from pressure washing and surface prep to the final coat.

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Curb appeal

Front Facade Remodeling

Siding, entry doors, windows and porch updates that change how your home meets the street.

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What we build in Tarzana and Los Angeles

The biggest projects start from the ground. Our custom home builders take a new house from plans and permits to final inspection, including tear-down and wildfire rebuilds. For a second home on the same lot, an accessory dwelling unit adds a rentable unit with its own kitchen, bath and entry. When the floor plan itself is the problem, a room addition buys square footage without a move.

Inside the house, a kitchen remodel is where families spend the most time and the largest share of the budget. Close behind it, a bathroom renovation returns the most comfort per square foot, especially a primary bath. Owners who would rather do it once book a whole home remodel and take every trade at once.

Not every job is a gut renovation. Flooring, plaster and carpentry fall to our general remodeling crew. Daylight, security and energy bills all improve with new windows and doors. Outside, a backyard remodel turns unused yard into usable rooms. Fresh exterior painting protects stucco and trim from Valley sun. To change how the house reads from the street, start with a front facade remodel.

Recent Work

Built. Finished. Loved.

A look at recent kitchen, bathroom, room-addition and whole-home transformations from our Tarzana design-build team.

Designer Visualizations

Why homeowners choose us

A Tarzana design-build team that finishes what it starts.

For more than a decade, Master in Design has been the remodeling partner Tarzana homeowners call when the project actually has to land, with permits, schedule and finish quality all handled. Read more about why our clients hire us or see how our six-step process works.

Frequently Asked Questions

What does it mean to be a design-build contractor?

A design-build contractor handles both the design and the construction of a project under one contract. At Master in Design, one in-house team plans, permits and builds custom homes, ADUs, room additions and full remodels across Tarzana and Los Angeles. You work with one project manager from the first walkthrough to the final inspection. Because the designers and builders work together, cost and code questions get answered during design, before construction starts. Master in Design has worked this way since 2012.

What does ADU mean in construction?

ADU means accessory dwelling unit in construction. It is a second, smaller home on the same lot as a main house, with its own kitchen, bathroom and entrance. An ADU can be a detached backyard unit, an attached unit, a garage conversion or a junior ADU inside the house. In Los Angeles, Master in Design builds ADUs from about $75,000 to $400,000. Most take 12 to 20 weeks to build once the permits are issued.

How long does a typical home renovation take?

A typical home renovation takes a few weeks to more than a year, depending on the scope. Once permits are issued, a single-story room addition takes 8 to 14 weeks and a new ADU takes 12 to 20 weeks. A whole-home remodel runs 6 to 12 months from demolition to the final walkthrough. A custom home in Los Angeles takes about 18 months to 2.5 years from the first design meeting to move-in, because design and permits alone take 6 to 12 months.

What is the best way to find a general contractor?

The best way to find a general contractor is to check the license first, then read reviews and compare written estimates. In California, look up the contractor on the CSLB website and confirm the license is active. Master in Design holds CSLB license #979219, a Class B General Building license, and is bonded and insured. Next, read recent Google reviews and ask to see finished projects like yours. Get the full scope and a line-item price in writing before you sign.

Do contractors usually charge for estimates?

Many contractors give estimates for free, and Master in Design does not charge for one. You can request a free estimate online or call (855) 741-3167, and we respond within one business day. The Tarzana office is open Monday through Thursday from 8:30 AM to 4:00 PM and Friday from 8:30 AM to 3:00 PM. Every estimate is broken out line by line, so you can see what the cabinets, tile and labor cost before any work starts.

Ready to start your project?

Tell us about it. No obligation, no pressure. We respond within one business day.

Master in Design has been transforming homes across the San Fernando Valley since 2012. We are a licensed general contractor (CSLB #979219) based in Tarzana, California, specializing in full-service residential remodeling, from concept and permitting through construction and finish carpentry. Unlike firms that subcontract every trade to the lowest bidder, we maintain a core crew of in-house craftsmen supported by a vetted network of electricians, plumbers, and structural engineers we have worked alongside for over a decade.

Homeowners in Tarzana, Encino, Woodland Hills, Sherman Oaks, Studio City, Calabasas, and Hidden Hills choose us because we deliver one thing that is surprisingly rare in remodeling: a single point of accountability. When you call with a question, the person who answers knows your project, your timeline, and your budget. No call centers. No runaround.

What We Build

We handle every room in the home, at any scale, from a single-bathroom refresh to a whole-home gut renovation:

Kitchen Remodeling: Custom cabinetry, island fabrication, countertop installation (quartz, granite, porcelain), appliance integration, plumbing and electrical reconfiguration, lighting design, and backsplash tile work.

Bathroom Remodeling: Full gut or cosmetic update. Shower pans, waterproofing systems (Schluter-Kerdi), freestanding tubs, custom vanities, niche framing, heated flooring, and ventilation upgrades that meet California Title 24 energy code.

Room Additions: Ground-up ADUs, primary suite expansions, second-story additions, and bump-outs. We handle architectural plans, structural engineering, foundation work, roofing tie-ins, and HVAC extension.

Whole-Home Remodeling: Complete interior transformations. Walls moved, ceilings raised, floors leveled, electrical panels upgraded, plumbing re-piped.

General Remodeling: Flooring, drywall, painting, trim carpentry, door and window replacement, built-in shelving, fireplace refacing, staircase renovation.

Windows & Doors: Retrofit and new-construction replacement. Vinyl, fiberglass, wood-clad, and aluminum. We handle flashing, waterproofing, and trim-out.

Backyard & Outdoor Living: Hardscape, outdoor kitchens, pergolas, patio covers, decking, retaining walls, and landscape lighting.

Why 200+ Homeowners Have Chosen Us

Remodeling is one of the largest investments a homeowner makes, and the contractor you choose determines whether that investment adds value or creates headaches.

Real license, real insurance. CSLB #979219. General liability and workers' compensation coverage active.

Design-build under one roof. You do not need to hire an architect separately, then bid the plans to contractors, then manage the GC, then find an interior designer. Our design-build model puts everything under one roof.

Transparent pricing. We provide detailed line-item estimates, not a single lump-sum number. Change orders are documented in writing before any extra work begins.

We answer the phone. During your project you will have the cell number of your project lead. Calls get returned the same day.