Design Center & Showroom · 614 S Euclid St, Fullerton · Mon–Fri 9am–5pm

#1 ADU Contractor in Culver City
Custom Builds by Horizon Remodeling

Horizon Construction & Remodeling Inc. builds accessory dwelling units and home additions in Culver City, managing design, budgeting, permits, and material selection from start to finish. Many properties here are compact single-story homes built between the 1920s and 1950s, and we work within those site conditions to add detached backyard units, attached suites, or converted spaces that meet current building requirements. Permit applications go through the Culver City Building and Safety Division, and we coordinate that process on your behalf so nothing falls through the cracks.

Services We Offer

Room Additions​

Sunroom Additions​

Garages & Conversions​

Extensions​

How Our ADU Process Works

When it comes to enhancing your living space, room additions combined with Accessory Dwelling Unit (ADU) construction offer unparalleled versatility and value. These projects not only increase square footage but also provide additional living accommodations, whether for extended family, rental income, or work-from-home setups, making them a popular choice for homeowners seeking to maximize their property’s potential. According to California’s Department of Housing and Community Development, ADUs are a key solution to expanding housing options in urban and suburban neighborhoods.

Finding the right adu contractor in Culver City starts with understanding that California’s ADU law, now codified in Government Code sections 66310 through 66342, changed again on January 1, 2026, and the rules matter from the first day you plan. Square footage is measured as interior livable space under the updated statute. Once you submit an application, the local agency has 15 business days to determine whether it is complete, then 60 days to approve or deny it. Approval is ministerial, meaning no hearing and no discretionary design review.

In Culver City, that application goes to the Culver City Building and Safety Division. One thing worth knowing before you submit: the Historic Preservation Program, adopted by ordinance in 1991 and codified at Municipal Code Chapter 15.05, designates Landmark, Significant and Recognized properties as well as historic districts. If your home carries one of those designations, exterior alterations go through a separate review. That step sits alongside the ADU process, not inside it, and it is worth confirming your property’s status early.

Los Angeles County contains 88 incorporated cities, and the counter and the agency change from one to the next even where the underlying state rules do not. The county’s own ADU ordinance, amended in July 2025, was found non-compliant with state law by the California Department of Housing and Community Development in December 2025. Among other findings, it caps detached ADUs on a multifamily lot at two where state law allows up to eight. That ordinance covers unincorporated territory, not incorporated cities like Culver City, but it is a plain reminder that a local handout may not reflect the current statute.

Culver City grew up quickly after incorporation on September 20, 1917. MGM arrived in 1924, Hughes Aircraft opened in 1941, and Culver Center was completed in 1950, and most of the residential lots were built out across those same decades. The typical home is a modest single-story house on a compact lot, and that lot shape drives nearly every ADU decision: where a detached unit can sit, how far utilities have to run, and whether a garage conversion makes more sense than a new detached build. We walk the parcel and check setbacks, grade, equipment access, and utility routes before drawing anything.

State law sets a floor that applies regardless of where the parcel sits. A local agency cannot cap an ADU below 850 square feet of interior livable space, or below 1,000 square feet for a unit with more than one bedroom. Side and rear setbacks cannot exceed four feet. Owner-occupancy cannot be required. Building an ADU cannot trigger a fire sprinkler retrofit of the main house. And there are no impact fees on a unit of 750 square feet or less. Those protections hold in Culver City the same as anywhere else in California.

Other Remodeling Services We Offer

Why Choose Horizon Remodeling As Your ADU Contractor in Culver City ?

Horizon Construction and Remodeling builds ADUs in Culver City as a licensed Class B general building contractor, bonded, and in business since 2009. Culver City’s housing stock is mostly modest single-story homes built between the 1920s and 1950s, and those compact lots require careful site review before a single drawing is started. Grade, utility routing, and equipment access get worked out first, because discovering a problem mid-plan means starting over.

Permits for ADU work in Culver City go through the Culver City Building and Safety Division. If your property carries a Landmark or Significant designation under the city’s Historic Preservation Program, exterior work is subject to additional review, and we factor that into the submittal from the beginning. One team handles the plans, the agency coordination, and the build itself.

We are familiar with the neighborhoods across Culver City, including Downtown Culver City, Fox Hills, Sunkist Park, and Blair Hills. Where state ADU law and a local ordinance point in different directions, we identify which governs and address it directly in the permit documents. Specialty trade portions of each project are performed by appropriately licensed subcontractors we coordinate.

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ADU Contractor Services in Culver City

ADU Contractor in Culver City FAQ

What is an ADU and why should I build one?

An accessory dwelling unit is a secondary home on your existing property, built as a backyard cottage, garage conversion, or in-law suite. Working with Horizon Construction & Remodeling Inc. on an ADU in Culver City lets you add rental income, house extended family, or gain extra living space on the compact lots typical of the city’s post-1920s neighborhoods.

ADU costs in Culver City depend on details no contractor can assess from a distance: whether you are adding a detached unit or converting an existing structure, what site and utility work your specific lot requires, and the finish level you want inside. The compact lots that characterize much of the city’s post-incorporation housing stock, built out from the 1920s through the 1950s, can affect setback clearances and utility run lengths in ways that shift the budget meaningfully. We walk the property first, confirm those conditions, and then give you a fixed scope and price you can hold us to. Anyone quoting a firm number before seeing the parcel is guessing.

State law does provide real cost protections worth knowing. An ADU under 750 square feet of livable space is exempt from impact fees, school fees apply only above 500 square feet, and connection fees for a conversion or junior ADU are limited because the state does not treat those as a new residential use. Adding an ADU also cannot trigger a fire sprinkler retrofit on your existing home. Permits for ADU work in Culver City go through the Culver City Building and Safety Division, and if your property carries a Landmark or Significant designation under the city’s Historic Preservation Program, exterior alterations will require additional review before permits move forward. One final caution: the CalHFA ADU grant program is closed and fully allocated, and the agency itself warns that any offer to help you obtain that grant is a scam.

Yes, an ADU always requires a building permit, though approval is ministerial rather than discretionary, meaning there is no hearing and no design review board to satisfy. In Culver City, applications go to the Building and Safety Division. Under state law, the agency has 15 business days to confirm the application is complete and 60 days to approve or deny it, and any denial must spell out the specific deficiency and how to fix it. Submitting a pre-approved plan shortens that review window to 30 days. We prepare and submit the full permit package for your project and carry it through every required inspection, so you are not left managing the process on your own.

Most ADU construction projects take between 4 to 8 months from design to completion, depending on scope and permit approvals. Horizon Remodeling prioritizes efficient timelines while maintaining quality workmanship.

We specialize in building detached ADUs, attached ADUs, garage conversions, backyard cottages, and junior ADUs (JADUs). Our team can help you choose the right ADU style for your property and goals.

Yes, if your property meets California zoning and space requirements. Horizon Remodeling will assess your site, secure the necessary permits, and build a fully detached ADU tailored to your preferences.

Yes, Horizon Remodeling is fully licensed, bonded, and insured to build ADUs throughout Orange County and surrounding areas. We have over 18 years of experience delivering high-quality ADU projects.

Horizon Construction & Remodeling Inc. manages ADU projects in Culver City from design through final inspection, coordinating permitting with the Culver City Building and Safety Division and keeping the work on budget and code-compliant throughout.

Absolutely! Horizon Remodeling provides complete ADU design services, including architectural plans and 3D renderings. We also handle city permits and inspections, streamlining your project and reducing stress.

Call us at (714) 449-9035 to schedule a free consultation, where we assess your Culver City property, discuss your goals, and deliver a detailed estimate covering every phase of your ADU project.