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.

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.

SB9 Lot Split Contractor Los Angeles

Short Answer

It has to be in a single-family zone, be large enough that both resulting parcels meet the minimum, and avoid certain hazard, historic and rental-history disqualifiers. We run the eligibility review before any design work.

Typical cost: Varies by parcel, unit count and site work
Typical timeline: 12–24 months including entitlement and permitting
Permits: Permits and inspections handled by us through LADBS or your city building department.
Service area: All of Los Angeles County, including the San Fernando Valley, Westside, South Bay and foothill cities.
Credentials: Licensed, bonded and insured. CSLB #1076428. Owner-operated.

What SB9 Allows

Two paths, sometimes combined: splitting one parcel into two, or building a second unit on the existing parcel. Both are ministerial approvals when the criteria are met.

Urban lot splits into two parcels
Two-unit developments on a single parcel
New duplexes and detached second homes
Combining SB9 with an ADU where allowed
Tear-down and rebuild scenarios

Eligibility Comes First

A lot has to be in a single-family zone, meet minimum size after the split, and sit outside certain hazard and historic categories. Recent rental or eviction history can also disqualify a property. We check all of it before you spend money on design.

Zoning and parcel size verification
Fire-severity, flood and hazard zone screening
Historic district and HPOZ constraints
Rental and eviction history review
Owner-occupancy and deed restriction requirements

From Parcel Map to Keys

SB9 projects involve a survey, a parcel map, utility separation, and then a full building permit for each unit. Because we design and build, one team carries it from the eligibility letter through the final inspection.

Survey and tentative parcel map
Separate utility services and meters
Architectural plans and structural engineering
Plan check corrections handled by us
Construction with our own crews

Projects We've Actually Built

SB9 Lot Splits & Two-Unit Development Jobs, With Real Numbers

Every figure below is from a permitted project we completed in Los Angeles County, not an estimate or an industry average.

SB9 Lot Split with Two New Homes, Highland Park

Cost: $1.24 million
Duration: 22 months including the split and both builds
Size: Two homes, 1,150 sq ft each
Permits: LADBS and LA Planning, urban lot split, permitted and inspected

SB9 Lot Split with Two New Homes, Fullerton

Cost: $1.38 million
Duration: 21 months including the split and both builds
Size: Two homes, 1,300 sq ft each
Permits: City of Fullerton, urban lot split, permitted and inspected

SB9 Lot Split with Two New Homes, Newbury Park

Cost: $1.29 million
Duration: 20 months including the split and both builds
Size: Two homes, 1,250 sq ft each
Permits: City of Thousand Oaks, urban lot split, permitted and inspected

Who Does This Work

Isaac Sade, Project Manager

Isaac runs sb9 lot splits & two-unit development projects at 1 Smart Build from the first site visit through final inspection: scope, plans, permit submittal, the crews on site, and the walkthrough at the end. You deal with one person who is accountable for the whole job.

Class B — General Building Contractor, CSLB #1076428. Bonded through and insured to $1,000,000 through U.S. Specialty Insurance Company. Rated 4.9 across 168 reviews.

More about Isaac

FREQUENTLY ASKED QUESTIONS

Does my lot qualify for an SB9 split?

How long does an SB9 project take?

Plan on 12 to 24 months from eligibility review to finished units, with the parcel map and plan check often taking as long as construction.

Can I build an ADU on an SB9 lot?

Sometimes, depending on the path you take and your city's implementation. We map out the maximum unit count for your parcel up front so you can compare options.

Do you handle SB9 projects near me outside the City of Los Angeles?

Yes. SB9 is state law, so it applies across California, but every city implements it differently. We handle SB9 lot splits and two-unit developments throughout the greater LA area within about 100 miles of our Woodland Hills office.

Areas We Serve

1 Smart Build provides sb9 lot splits & two-unit development services within a 100-mile radius of our Woodland Hills office, covering Los Angeles County, Ventura County, Orange County and the surrounding region. Homeowners searching for a remodeling contractor near me regularly hire us in:

Don't see your city? View all service areas or give us a call, if you're within 100 miles, we build there.

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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Also Explore

Custom New Construction18–30 months including entitlement and permitting ADU & Garage ConversionConstruction in as few as 120 working days once permits are issued; 8–14 months from first site visit to final inspection

SB9 LOT SPLIT & TWO-UNIT DEVELOPMENT IN LOS ANGELES