ADU & Construction Contractor in Los Angeles
IBA Builders builds ADUs and remodels homes across Los Angeles
CSLB License #1074505 –
One contractor handles permits, build, and inspections.
IBA Builders is a licensed general contractor that builds ADUs, custom homes, and full remodels in Los Angeles County.
We handle every phase under one contract. Design coordination. LADBS permit submission. Construction. Final inspection sign-off.
No permit expediters hired separately. No handoff to a second contractor mid-project. One team, one license, one point of contact.
IBA Builders operates from 13743 Ventura Blvd, Suite 360, Sherman Oaks – centrally positioned to serve all of Los Angeles County.
Sherman Oaks sits at the intersection of the 101 and 405. From that location, our team reaches project sites across the Valley, the Westside, the South Bay, and the Eastside without logistical delays that affect contractors dispatching from a single edge of the county.
Itamar Assulin founded IBA Builders in 2015 as CSLB licensed contractor based in Los Angeles with a specific focus on the Los Angeles market. LA construction is its own discipline. The LADBS permit process, the city’s zoning codes, the Los Angeles County building regulations – governing permits and setbacks in unincorporated areas – require direct, ongoing experience navigating them on real projects. Our resource on Los Angeles zoning codes and ADU lot rules covers how those regulations apply across different jurisdictions in the county.
Los Angeles lots also come with specific physical constraints. Clay-heavy soil that moves seasonally. Hillside lots that require geotechnical reports before a permit is accepted – we cover the full scope of hillside lot geotechnical and permit requirements in detail for homeowners navigating those conditions. Older housing stock in neighborhoods like Boyle Heights, Van Nuys, and Inglewood where unpermitted additions from the 1970s and 1980s show up on title reports and complicate new permit applications.
Working through those conditions since 2015 is local knowledge that translates directly to fewer surprises on your project.
Here is what that looks like in practice:
IBA prepares the full permit package - architectural plans, Title 24 energy compliance coordination, site documents - and submits directly to LADBS (the Los Angeles Department of Building and Safety, the city agency that reviews plans, issues permits, and conducts inspections).
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Framing, plumbing, electrical, HVAC, tile, cabinetry - IBA sequences every trade against the same project plan. No trade arrives before the prior phase is inspected and cleared.
Every required inspection is scheduled in order. Rough-in before drywall. Framing before insulation. Each phase approved before the next begins. No walls closed before the city has seen what is inside them.
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The first site visit sets every other phase in motion – and it happens before any money is committed.
I’m Itamar Ben Asulin. I founded IBA Builders in 2015, and I’m directly involved in every project we take on. Here is how a typical engagement starts.
A homeowner calls or submits a form. They want to build a backyard ADU, or convert their garage, or add a room to an existing home. Sometimes they have architectural drawings. More often, they have a general idea and a lot of questions.
The first thing we do is visit the property. Not to close a contract. To understand what is actually on the lot.
On a recent project in North Hollywood – a homeowner wanting a detached ADU in the rear yard – the initial site visit identified that the existing sewer lateral ran along the opposite side of the lot from where the unit was planned. That single finding shifted the utility connection cost estimate significantly. The homeowner found out before any design money was spent. We rerouted the plan before it became a mid-project surprise.
That is the purpose of the first visit. Confirm setbacks. Map utility connection points. Check for open permits or existing violations in the LADBS record. Identify any soil, slope, or access conditions that will affect cost and timeline.
From that visit, we build a project scope that reflects the actual property – not a generic estimate based on square footage alone. The homeowner finishes that conversation knowing what the project involves, what IBA handles, and what the permit path looks like.
CSLB stands for Contractors State License Board - California's licensing authority for contractors. A valid, active CSLB license confirms the contractor is legally authorized to perform construction work, carries the required bond, and holds qualifying insurance. It is searchable by license number at cslb.ca.gov.
IBA Builders holds CSLB License #1074505. Active. Verifiable. You can verify CSLB License #1074505 before you call anyone.
Here is why that matters specifically in Los Angeles: only a CSLB-licensed contractor can legally pull building permits and act as contractor of record on permitted residential construction. A homeowner who hires an unlicensed contractor and allows them to perform work that requires a permit takes on the liability themselves.
An unpermitted addition, ADU, or structural modification follows the property through every future sale, refinancing, and title search.
How We Sequence Permits, Trades, and Inspections so Your Project Doesn't Stall Between Phases Proper project sequencing prevents the most common cause of construction delays in Los Angeles: one phase blocking the next.
Before construction begins, IBA reviews the full permit requirement for the project. An ADU or room addition may require a building permit, a plumbing permit, an electrical permit, and a mechanical permit – each with its own inspection sequence.
We identify every permit trigger in the initial scope review and build the project plan around them.
Construction phases are sequenced against the permit plan. Foundation first. Framing after foundation inspection. Rough-in MEP before drywall. Each phase proceeds only after the prior inspection is passed.
Utility connections for ADU projects – including LADWP (Los Angeles Department of Water and Power, the city utility that approves and connects electrical and water service to new construction) – are scheduled in parallel with the construction phase, not after it, so connection delays do not hold up occupancy.
The final inspection confirms all work matches the approved plans and meets building code. After the city signs off, LADBS issues a Certificate of Occupancy – the document that legally certifies a structure is habitable. Required before a tenant occupies an ADU or a homeowner moves into a new build.
Every phase is confirmed closed before the project is complete.
IBA Builders serves all of Los Angeles County – from the San Fernando Valley to the South Bay, from the Eastside to the Westside.
We work in neighborhoods across the county, including Sherman Oaks, Studio City, Burbank, Glendale, Pasadena, Culver City, Inglewood, Torrance, Long Beach, Silver Lake, Echo Park, Boyle Heights, East Los Angeles, North Hollywood, Van Nuys, Encino, Tarzana, Woodland Hills, Brentwood, and Santa Monica.
The first conversation with IBA Builders is a project discussion - not a sales call and not a commitment.
Call 310-490-3414 or email info@ibabuilders.com. You can also submit a form through the website at ibabuilders.com.
You do not need architectural drawings. You do not need a finalized budget. You need a property address and a general idea of what you are trying to build.
From there, we schedule a site visit. We review the lot, the existing structure, and the permit history. We tell you what the project actually involves - scope, permit path, and realistic timeline - before any design work begins.
