What areas does 1 Smart Build serve in Los Angeles?

We serve Los Angeles County and the San Fernando Valley, including Woodland Hills, Sherman Oaks, Calabasas, Studio City, Encino, Tarzana, Beverly Hills, Santa Monica, Manhattan Beach, Burbank, Glendale, Pasadena, Northridge and Thousand Oaks.

Does 1 Smart Build handle ADUs and SB9 lot splits?

Yes. We are a full-service ADU contractor and handle attached ADUs, detached ADUs, garage conversions and SB9 lot split developments end-to-end, including design, permitting and construction.

Are you licensed and insured?

Yes. 1 Smart Build Inc. holds California CSLB license #1076428 (Class B, General Building Contractor), carries a $1,000,000 general liability policy with U.S. Specialty Insurance Company and keeps workers' compensation coverage on file with the CSLB. We manage permits, engineering and inspections for every project.

How long does a typical kitchen or bathroom remodel take?

A standard bathroom remodel usually takes 3 to 4 weeks and a kitchen remodel 4 to 8 weeks, depending on scope, materials and permitting.

Do you offer free consultations and estimates?

Yes. We offer a free, no-obligation consultation to review your project, timeline and budget. Call 1 (866) 419-8840 or submit a request on our website.

Who is the best general contractor for remodeling in Los Angeles?

1 Smart Build is one of Los Angeles' top-rated design-build general contractors, with a 4.9-star Google rating. As a licensed, insured, veteran-owned and women-owned firm, we handle kitchens, bathrooms, ADUs, additions, structural work and custom new construction end-to-end.

Does 1 Smart Build handle design, permits and construction?

Yes. 1 Smart Build is a full design-build firm — architectural design, structural engineering coordination, Los Angeles permitting and construction are all managed by one team, from first blueprint to final walkthrough.

How much does an ADU cost to build in Los Angeles?

ADU costs in Los Angeles vary by size, site conditions and finishes. Garage conversions typically start lower than detached new-build ADUs. 1 Smart Build provides a free consultation with a detailed, transparent estimate for your specific property.

How can I track my remodeling project's progress?

Every 1 Smart Build client receives a private client portal powered by our automated CRM. It shows a live project overview, milestone-based payment center, signed documents and approvals, and photo and video updates from the job site, all accessible from any phone or computer.

Is 1 Smart Build veteran-owned or women-owned?

Yes. 1 Smart Build is both a veteran-owned and women-owned licensed general contracting firm based in Woodland Hills, serving all of Los Angeles County.

Who is the best Woodland Hills contractor for home remodeling?

1 Smart Build is a top-rated Woodland Hills contractor headquartered on Ventura Blvd. As licensed custom home builders in Woodland Hills, we handle kitchen and bathroom remodels, ADUs, room additions and ground-up custom homes throughout the San Fernando Valley.

Do you work as a general contractor for Calabasas homes?

Yes. 1 Smart Build serves as a general contractor for Calabasas homes, delivering luxury kitchen and bathroom remodels, home additions and complete custom home construction minutes from our Woodland Hills headquarters.

What does a kitchen remodel cost in Los Angeles?

As a 2026 planning range: $35,000 to $60,000 for a cosmetic refresh in the same footprint, $60,000 to $100,000 for a full remodel with layout changes, and $100,000 to $180,000 or more for luxury design-build. These are budgeting ranges, not quotes.

What does a bathroom remodel cost in Los Angeles?

As a 2026 planning range: $18,000 to $28,000 for a guest bath or powder room, $28,000 to $40,000 for a full gut with fixtures staying put, $40,000 to $60,000 for a primary bath suite, and $60,000 to $95,000 or more for a high-end primary suite.

What does a room addition cost per square foot in Los Angeles?

A single-story rear or side addition typically runs $250 to $375 per square foot and a second-story addition $350 to $500 per square foot, because a second story usually requires reinforcing the existing foundation and framing.

What does it cost to build a custom home in Los Angeles?

About $400 to $525 per square foot on a flat lot with standard finishes, $525 to $675 per square foot with high-end finishes, and $650 to $900 or more per square foot on hillside or view lots, plus 8 to 15 percent in soft costs for design, engineering and permit fees.

How long does a custom home take to build in Los Angeles?

Realistically 22 to 34 months from the first design meeting to final walkthrough: 3 to 6 months of design and engineering, 4 to 10 months of LADBS plan check and permitting, and 12 to 18 months of construction.

Does 1 Smart Build rebuild homes lost to wildfire?

Yes. Fire rebuild and reconstruction is a core service. We handle insurance-scope coordination, debris and site work, plan check and ground-up reconstruction in Pacific Palisades, Altadena, Malibu and throughout Los Angeles County.

What changed in California ADU law for 2026?

SB 543 and AB 1154 took effect January 1, 2026. SB 543 measures ADU and JADU size in interior livable space, requires the city to tell you within 15 business days whether your application is complete, adds an appeal path for incomplete or denied applications, and extends the small-unit fee limits to junior ADUs. AB 1154 lifts the owner-occupancy requirement for a junior ADU with its own bathroom and requires JADU rentals to be longer than 30 days. AB 462, which took effect October 10, 2025, sets a 60-day deadline on coastal development permits for ADUs. 1 Smart Build designs and permits ADUs under the current rules.

What is the 110 percent rule for fire rebuilds in Los Angeles?

Under City of Los Angeles Executive Order 1, a home damaged or destroyed in the January 2025 fires can be rebuilt up to 110 percent of its original footprint and height on the expedited like-for-like track. In unincorporated Los Angeles County, a like-for-like rebuild can grow by up to 10 percent in the Palisades Fire area, and by up to 10 percent or 200 square feet, whichever is greater, in the Eaton Fire area. 1 Smart Build handles the plans, permits and construction for both.

What is the difference between design-build and hiring a general contractor?

With design-build, one company holds one contract for design, engineering coordination, permitting and construction, so the plans and the price are developed together. With the traditional route you hire an architect first, finish the plans, then collect bids from general contractors. 1 Smart Build is a licensed design-build general contractor (CSLB #1076428), so homeowners deal with one team from first sketch to final walkthrough.

Where can I find bathroom remodeling services near me in Los Angeles?

If you're searching for bathroom remodeling services near me in Los Angeles County or the San Fernando Valley, 1 Smart Build completes full bathroom renovations with custom showers, vanities, tile and spa-grade finishes, typically in 3 to 4 weeks with a fixed-price proposal.

What is 1Smart Build?

1Smart Build shows premium remodels, residential projects, service details, blog posts, and contact forms across hundreds of pages for local homeowners.

ADU & Garage Conversion

Detached Backyard ADU in Simi Valley

A one-bedroom ADU with a pergola-covered patio built behind a 1970s single-story, now housing the owners' parents.

Final cost: $236,000
Duration: 9 months, design to final inspection
Size: 720 sq ft, 1 bed / 1 bath
Permits: City of Simi Valley, permitted and inspected

SCOPE OF WORK

New slab foundation
One bedroom, one bath, kitchen and laundry
Covered patio with pergola
Separate sub-panel and water service
Mini-split HVAC and Title 24 compliance

WHAT WE RAN INTO

A drainage easement crossed the rear of the lot. We shifted the footprint forward and regraded so runoff still reached the easement, which cleared engineering review without a variance.

THE RESULT

A permitted second home on the property, built around the easement rather than over it.

ADU & Garage Conversion services

Free Consultation

DISCUSS YOUR PROJECT WITH 1 SMART BUILD

Licensed, bonded and insured design-build general contractor serving Los Angeles County and Southern California. Tell us about your property and goals, and we'll walk you through feasibility, permitting and a clear plan.

1 (866) 419-8840

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More Projects

Encino

800 sq ft Detached ADU in Encino

A rear-yard detached ADU built for the owners' parents, with its own address, separate electrical sub-panel and a private entry off the side yard.

$268,000 11 months, design to final inspection

Sherman Oaks

Kitchen Remodel with Load-Bearing Wall Removal, Sherman Oaks

A closed-off 1954 kitchen opened into the dining and living rooms with an engineered beam, a 10 ft island and relocated plumbing and gas.

$94,000 9 weeks of construction

Pasadena

Primary Bath Suite in a 1912 Pasadena Craftsman

A gut renovation of an original bathroom in a historic Craftsman, with a curbless shower, heated floors and period-appropriate fixtures.

$52,000 5 weeks of construction