At Perfecto Remodeling, we have been delivering garage conversion and ADU construction services across Los Angeles County and Orange County for over 10 years. Our licensed design-build team manages every phase of your project from site evaluation and architectural design through permitting, construction and final inspection under one roof, with a clear process and defined timeline at every step. Below you will find everything you need to know about ADU types, our services, and how our process works from site evaluation to final inspection. Learn more about who we are on our about page.
What Is a Garage Conversion and ADU?
Before starting any project it helps to understand exactly what you are building and what regulations apply to your property. The terms garage conversion, ADU and JADU are often used interchangeably but they refer to different types of structures with different rules, costs and permitted uses.
Garage Conversion vs ADU: What Is the Difference?
A garage conversion transforms an existing attached or detached garage into a finished living space. The structure is already built, which means you are working with an existing foundation, framing and roof, making it generally more affordable than building from scratch. A traditional garage conversion creates a bonus room, home office, gym or guest space but cannot include a full kitchen under standard zoning rules. An ADU or accessory dwelling unit goes further. It functions as a fully independent living unit with its own kitchen, bathroom, bedroom and living area on the same lot as the primary residence. When a garage is converted to include a full independent living space it is classified as a garage conversion ADU and must meet all California ADU regulations and local building codes. Both attached and detached garages can be converted into ADUs across Los Angeles and Orange County, and both require permits regardless of the scope of work.
What Is a JADU?
A Junior ADU, commonly referred to as a JADU, is a smaller accessory dwelling unit of up to 500 square feet created within the existing walls of a single-family home or attached garage. Unlike a standard ADU, a JADU shares a wall with the primary residence and may share a bathroom with the main home, though it must have its own separate entrance and an efficient kitchen. JADUs are subject to slightly different regulations than standard ADUs under California state law and can be a cost-effective option for homeowners who want to create a rentable or multi-generational living space without a full addition or ground-up build. In Los Angeles and Orange County, JADUs are permitted on single-family residential lots and do not require the same parking replacement rules that sometimes apply to standard ADUs.
Our ADU and Garage Conversion Services
Perfecto Remodeling offers a full scope of ADU construction services tailored to your property, goals and budget. Whether you are converting an existing garage, building a new detached unit from the ground up or adding a second story above an existing structure, our team handles every trade in-house under one project. We work across Los Angeles County and Orange County and tailor the scope, layout and design to the specific conditions of your lot and the regulations of your city or municipality.
Garage Conversions: Attached and Detached
Converting your garage into a fully permitted living space is one of the most cost-effective ways to add square footage and value to your property in Los Angeles. Because the primary structure already exists, a garage conversion typically costs less per square foot than new construction and can be completed in a shorter timeline. We handle both attached garage conversions, where the garage shares a wall with the main home, and detached garage conversions, which offer more privacy and are often preferred for rental use. Every garage conversion we deliver includes structural modifications where needed, insulation, electrical, plumbing, HVAC, interior finishes and a full interior fit-out if the project is classified as an ADU. We manage the permitting process with the relevant city or county building department from start to finish.
New Construction Detached ADUs
A new construction detached ADU is built from the ground up on your existing lot as a fully independent living unit. This option offers the most design flexibility since you are not working within the constraints of an existing structure. We design and build detached ADUs as studios, one-bedroom and two-bedroom units in compliance with zoning setbacks, height limits and lot coverage requirements specific to your city in Los Angeles or Orange County. New detached ADUs are popular for homeowners who want to maximize rental income, create a guest house or provide independent living space for a family member while maintaining privacy from the main residence.
Two-Story ADUs Over Existing Garages
For properties where lot coverage limits or setback requirements make a ground-level addition difficult, building a two-story ADU above an existing garage can be an effective solution. This approach adds a full living unit on the upper floor while keeping the garage function intact on the ground level, meaning no parking is lost. We handle all structural reinforcement required to support the additional load, framing, stair access, exterior finishing and full interior build-out of the upper unit. This type of ADU requires careful structural engineering and permitting coordination, both of which our team manages internally.
Junior ADUs and JADU Construction
For homeowners who want to add a rentable or multi-generational living space within their existing home footprint, a JADU is often the most cost-efficient path. We design and build junior ADUs of up to 500 square feet within the existing walls of a single-family home or attached garage, including a separate entrance, efficiency kitchen and bathroom access. Our JADU construction scope covers all interior work, electrical, plumbing and finish installation required to create a fully functional and code-compliant unit. JADUs are particularly attractive in Los Angeles and Orange County because they are subject to streamlined permitting under California state law and do not carry the same impact fees as standard ADUs in most jurisdictions. If you are unsure whether a JADU or standard ADU is the right choice for your property, our team will assess your lot during the initial consultation and give you a clear recommendation based on your goals and your city's specific regulations.
ADU Design Services in Los Angeles and Orange County
A well-designed ADU starts long before construction. The decisions made during the design phase determine how functional the space will be, how quickly it will move through plan check and how well it will hold up over time. Our in-house architects and designers create ADU floor plans optimized for your lot size, lifestyle and the specific requirements of your city or county. We work across both Los Angeles County and Orange County and understand the differences in regulations, setback requirements and permitting processes between individual cities within each county.
Custom ADU Floor Plans and Elevations
We develop custom ADU floor plans from scratch based on your property's existing conditions, your goals and the allowable building envelope on your lot. Every plan we produce is designed for flow, function and legal approval. We coordinate structural engineering, Title 24 energy compliance documentation, HOA coordination where applicable and zoning analysis as part of the design package. The result is a permit-ready plan set that moves through the city plan check process efficiently rather than coming back with revisions that delay your project. Explore our architectural and engineering services for a full picture of what our design team offers.
AI 3D Design and Virtual Walkthrough
Before any construction begins, we develop a full 3D visualization of your ADU using our AI 3D Design tool. You can see exactly how the finished unit will look including the overall layout, room placement, flooring and interior finishes before committing to a single design decision. This is a capability that no ADU specialist competitor currently offers and it is one of the most valuable parts of our process. Seeing the space in realistic 3D detail before construction starts eliminates the guesswork that leads to mid-project changes, which are expensive and time-consuming on any ADU project. Virtual walkthroughs are particularly useful for two-story ADUs and detached units where spatial relationships between rooms can be difficult to assess from floor plans alone.
Permits, Title 24 and Engineering
Permitting is consistently the most stressful part of any ADU or garage conversion in Los Angeles for homeowners who try to navigate it without professional help. Los Angeles County and Orange County operate under separate building departments and each city within both counties has its own plan check process, fee schedule and typical review timeline. A garage conversion ADU in Woodland Hills falls under the City of Los Angeles Department of Building and Safety, while the same project in Irvine or Newport Beach follows a completely different submission process. We manage all permit submissions, plan checks and engineering coordination on your behalf regardless of which city your property is in. This includes Title 24 energy compliance calculations, structural engineering documentation, HOA submissions where required and all follow-up communications with the building department through to permit issuance. We also prepare California ADU-compliant plan sets that align with the LADBS Standard Plan Program where applicable, which can reduce plan check time significantly.
.jpeg)
Our ADU Construction Process
We follow a proven, transparent process that removes the uncertainty most homeowners associate with ADU projects. Every stage has a defined output and timeline so you always know what is happening, what comes next and what decisions need to be made.
Site Evaluation and Feasibility
Every project starts with a site evaluation of your property. We assess your lot size, existing structures, setback requirements, utility access and any zoning restrictions specific to your city. This step determines what type of ADU is possible on your property, the approximate allowable square footage and whether a garage conversion, new construction or second-story addition is the right approach given your goals and budget. We also identify any site-specific challenges such as slope, soil conditions or utility locations that will affect the construction scope and cost. By the end of this phase you have a clear picture of what is buildable on your lot before any design work begins.
Construction and Final Inspection
Construction begins once permits are issued. Our licensed ADU construction crew handles all trades including demolition where required, foundation work, framing, roofing, MEP systems, interior finishes and utility connections on a defined schedule. We protect the main residence during construction and maintain a clean worksite throughout the project. Because our design and construction teams are the same organization, field decisions stay aligned with the approved plans and the original design intent. The project closes with a final inspection by the relevant building department, after which we walk through the completed ADU with you together before handing over the keys.
.jpeg)
.jpeg)
Why Choose Perfecto as Your ADU Contractor in Los Angeles?
There are many ADU contractors operating across Los Angeles and Orange County but the quality of experience varies significantly. The most common complaints homeowners have about ADU projects are delays caused by poor permitting management, mid-project cost increases and contractors who lack genuine knowledge of California ADU regulations. At Perfecto Remodeling we have built our entire ADU construction process around solving exactly those problems. We are a fully licensed design-build contractor operating under California license number 1073777 with over 10 years of experience and more than 50 completed projects across Los Angeles and Orange County. Every project comes with a custom 3D design before construction begins, transparent pricing with no mid-project surprises, full permitting management and a defined timeline managed by one dedicated team from site evaluation through final inspection.
Licensed and Experienced ADU Contractor
Perfecto Remodeling holds California contractor license number 1073777 and has been delivering ADU construction services across Los Angeles and Orange County for over 10 years. We have genuine experience navigating the permitting requirements of multiple cities within both counties, including the City of Los Angeles building department which manages projects in Woodland Hills and the San Fernando Valley, and the individual city departments across Orange County including Newport Beach, Irvine and Huntington Beach. We maintain two office locations, one in Woodland Hills serving the San Fernando Valley and surrounding communities, and one in Newport Beach serving Orange County homeowners directly. We are not a remote contractor managing your project from a distance. We are local, we know the building departments and we understand the home styles and lot configurations common to each area we serve. Explore our full range of home construction services to see everything we offer.
Design-Build Under One Roof
Most ADU projects that go wrong do so because design and construction are managed by separate parties. When an architect produces plans and hands them to a contractor who was not involved in the design, information gets lost, scope gets reinterpreted and the finished unit does not always match what was originally intended. Our design-build model keeps the entire project within one team from the first concept through the final inspection. Your architect and your construction crew are the same organization, working from the same plans and accountable to the same outcome. This produces a faster, cleaner project with fewer mid-construction decisions that require revisiting the design and is why we can offer realistic timelines and accurate pricing at the start of each project.
See Our ADU Projects
Explore our gallery of completed ADU homes across Los Angeles and Orange County. From sleek detached guest houses to modern annex buildings, our portfolio speaks for itself.
.jpeg)
Areas We Serve in Los Angeles and Orange County
Perfecto Remodeling serves homeowners across Los Angeles County and Orange County from our offices in Woodland Hills and Newport Beach. In Los Angeles County we deliver garage conversion and ADU construction across the San Fernando Valley including Woodland Hills, Calabasas, Encino, Sherman Oaks, Studio City and Tarzana, as well as Westside communities including Santa Monica, Brentwood and West Hollywood, and areas including Pasadena, Glendale and the South Bay.
In Orange County we serve Newport Beach, Irvine, Huntington Beach, Anaheim, Fullerton and surrounding cities with the same licensed team and design-build process. The San Fernando Valley including Woodland Hills consistently has some of the highest concentrations of ADU permits in the City of Los Angeles due to larger lot sizes and strong rental demand, making it one of our most active service areas. If you are planning a garage conversion or ADU project anywhere across Los Angeles or Orange County, contact us to confirm we serve your specific neighborhood and to discuss what is buildable on your lot.
.jpeg)
Start Your Garage Conversion or ADU Project Today
A garage conversion or new ADU is one of the highest-return investments available to homeowners in Los Angeles and Orange County. Beyond rental income potential, an ADU adds measurable value to your property and creates flexible space that can serve different purposes as your household needs change over time. Whether you are planning a garage to ADU conversion, a new detached unit or a junior ADU within your existing home, Perfecto Remodeling has the licensed team, the design-build process and the local expertise to deliver it properly across Los Angeles and Orange County. Book a free consultation today and we will assess your property, explain your options and give you a clear picture of what your project will involve.
ADU & Garage Conversion FAQs
1. What is the difference between a garage conversion and an ADU?
A garage conversion turns an existing garage into finished living space using the existing structure. Without a full kitchen it is a bonus room or office. When it includes a full independent living space with kitchen and bathroom it becomes a garage conversion ADU and must meet California ADU regulations. An ADU built from the ground up as a new detached structure is a separate category altogether. Both require permits in Los Angeles and Orange County regardless of scope.
2. Do I need a permit for a garage conversion in Los Angeles?
Yes. All garage conversions and ADU projects require permits in Los Angeles and Orange County. This includes structural changes, electrical, plumbing and any modifications to the building envelope. Los Angeles County and Orange County operate under separate building departments. Perfecto Remodeling manages all permit submissions, Title 24 compliance and engineering coordination on your behalf from start to finish.
3. How long does an ADU project take from start to finish?
A straightforward garage conversion typically takes 2 to 4 months from permit submission to completion. A new detached ADU generally runs 4 to 8 months depending on plan check processing times and site conditions. We give you a realistic timeline at the start based on current processing times in your specific city.
4. What is a JADU and how is it different from a standard ADU?
A JADU is a Junior ADU of up to 500 square feet created within the existing walls of a single-family home or attached garage. Unlike a standard ADU it shares a wall with the main residence and may share a bathroom, but must have its own entrance and efficient kitchen. JADUs carry lower impact fees and move through permitting faster than standard ADUs under California state law, making them one of the most cost-efficient options for adding rentable or multi-generational space.
5. Can I add a second story ADU above my existing garage?
Yes, in many cases. A two-story ADU above an existing garage adds a full living unit on the upper floor while keeping the garage below intact, meaning no parking is lost. It requires structural reinforcement and careful permitting coordination. Whether this is feasible on your property depends on your lot, existing structure and local zoning rules. Our team assesses this during the initial site evaluation.
6. Does building an ADU or garage conversion increase my property value?
Yes. An ADU adds a legal, rentable living unit to your property which increases both its market value and income potential. In Los Angeles and Orange County where housing demand is consistently high, a well-finished ADU adds meaningful equity and can generate rental income that offsets construction costs over time. The exact value added depends on the ADU type, size, finish level and your specific neighborhood.
7. Do you handle ADU projects in Woodland Hills and Orange County?
Yes. Perfecto Remodeling is based in Woodland Hills, one of our most active ADU service areas in the San Fernando Valley, and maintains an office in Newport Beach serving Orange County. We are familiar with the permitting processes, building departments and local zoning rules across both counties including cities like Irvine, Huntington Beach, Encino, Calabasas and Sherman Oaks. Contact us to arrange a free site evaluation at your property.
