Frequently Asked Questions - ADU
Straight answers on ADU pricing, permitting, timelines, and how Fielding ADU Builders works in Los Angeles. If your question isn't here, call (361) 315-4177 and our coordinator will route you to the local team that covers your address.
Pricing & Cost FAQs
An ADU in Los Angeles typically runs $180,000 to $450,000 depending on size, site conditions, and finish level. A detached 500-square-foot one-bedroom unit usually lands between $180,000 and $280,000, while an 800-to-1,000-square-foot two-bedroom commonly falls in the $300,000 to $450,000 range. Garage conversions sit toward the lower end because the shell already exists. Hillside lots, retaining walls, utility trenching, and older homes with outdated electrical panels all push costs higher. Los Angeles specifically adds considerations like soil conditions in hillside neighborhoods, coastal zone setbacks in areas like San Pedro, and DWP utility connection fees. The Garrison Code includes a written price before any work starts, so you'll know your exact number before committing. Call (361) 315-4177 for a free estimate built around your specific lot and plans.
A garage conversion is the least expensive ADU path in Los Angeles, typically $100,000 to $180,000 when the existing structure is sound. The foundation, framing, and roof are already in place, so the budget goes toward insulation, drywall, electrical, plumbing, and finishes. Junior ADUs (JADUs) carved out of existing interior space like a spare bedroom or den run even lower, often $60,000 to $100,000, because they use the home's existing systems and require only a small kitchenette and separate entry. Both avoid the site work, foundation, and utility trenching that drive up new-construction costs. Los Angeles-specific factors like DWP panel upgrades ($3,000 to $6,000) and seismic reinforcement of older garages do add line items that catch some homeowners off guard. We'll price those in writing before any work begins.
The spread comes from a few variables that change job by job: site access, soil type, utility distances, and finish level. A level lot with easy street access and a nearby electrical panel costs far less to build on than a hillside parcel in Echo Park that needs a crane or pier drilling. Finish selection moves the needle too: basic laminate counters and stock cabinets versus custom millwork and stone. Los Angeles also layers on city-specific inspections, school district fees in some areas, and DWP service upgrades. At Fielding ADU Builders, we give you a written line-item price before any work starts, so you see exactly where the money goes. No change orders, no price that moves at the door. Call (361) 315-4177 to get your specific number.
Garage conversions in Long Beach generally run $120,000 to $220,000, with most finished one-bedroom units landing around $140,000 to $180,000. Long Beach's older housing stock, much of it built before 1970, often needs electrical service upgrades and foundation work before conversion can start. The city's parking requirements are more lenient than Los Angeles for ADUs near transit corridors, which helps keep costs down. Long Beach also has its own permit process through the city's Development Services department, and inspection timelines differ from LA's. We handle the permits as part of the job. The Garrison Standard means your price is in writing first, and the work is guaranteed for a full year. Call (361) 315-4177 and our coordinator will connect you with the team covering Long Beach.
No. The Garrison Code requires a written line-item price before any work starts, and we build to that number. Fixed pricing means you won't get a call three weeks in asking for more money because of something we saw on day one. The only scenarios where a price changes are ones you initiate: you add square footage mid-project, you upgrade finishes, or an inspection uncovers a site condition that no pre-construction walkthrough could have caught. In those cases, we write up the change before we do the work, and you approve it first. Most of our projects finish at the original written price. Call (361) 315-4177 for an estimate that holds.
Service & Process FAQs
The process moves through five stages: feasibility and site assessment, design and engineering, permitting, construction, and final inspection. First, we walk your lot and check setbacks, access, utility locations, and existing structures. Then we work through drawings and structural engineering, which Los Angeles requires as part of the permit package. Once the city approves, construction starts: foundation or garage retrofit, framing, mechanical, drywall, finishes. Los Angeles inspections happen at multiple points before the final occupancy sign-off. The whole thing typically takes 9 to 14 months from first walkthrough to move-in, with permitting time being the biggest variable. Fielding ADU Builders manages the permits and inspections for you. Call (361) 315-4177 to start with a site assessment.
Most ADU projects in Los Angeles take 9 to 14 months from initial site walk to final inspection. Construction alone typically runs 5 to 8 months for a detached unit and 3 to 5 months for a garage conversion. The rest is design, engineering, and city permitting, which in Los Angeles can take 3 to 6 months depending on the scope and whether your property triggers any special reviews like hillside or historic-district overlays. The Garrison Code says we finish on schedule, and we manage the permit process ourselves so the timeline doesn't drift from chasing paperwork. Weather rarely slows Los Angeles construction, but inspection scheduling can add weeks. Call (361) 315-4177 and we'll give you an honest timeline for your specific project.
Yes. Fielding ADU Builders pulls the permits and schedules every inspection as part of the job. Los Angeles ADU permits go through the Department of Building and Safety, and the submittal package includes architectural drawings, structural calculations, Title 24 energy compliance, and site plans. We prepare and submit that package, respond to plan-check comments, and coordinate the required inspections: foundation, framing, electrical, plumbing, mechanical, and final. You never have to stand in line at a city office or decode a correction letter. Do it by the book, the first time is part of The Garrison Code, and it's why our projects pass inspection without rework drama. Call (361) 315-4177 to talk through your property's permitting path.
Fielding ADU Builders covers Los Angeles and surrounding cities through our network of independently owned locations, including Long Beach, Anaheim, Riverside, Irvine, Santa Ana, Santa Clarita, San Bernardino, Fontana, Moreno Valley, Oxnard, and Huntington Beach. Every location is an independent local business held to The Garrison Standard: written pricing before work starts, permitted work done to code, clean job sites, and a one-year written guarantee. When you call (361) 315-4177, our coordinator routes you to the local team that covers your address. You'll get a local crew that knows your city's permit process, not a remote call center guessing at it.
Most Los Angeles single-family lots qualify for at least one ADU under California state law, which overrides many local restrictions. State law (AB 68, AB 881, and subsequent bills) requires cities to approve ADUs that meet basic standards, including lots zoned for single-family or multi-family use. Los Angeles allows one detached ADU plus one junior ADU on most single-family properties. Setbacks of 4 feet for detached units, height limits of 16 feet (or more near transit), and a minimum lot size exemption all apply. Some lots have constraints: hillside grading, historic overlay zones, coastal zone boundaries, and utility easements. We check all of this during the site assessment. Call (361) 315-4177 to find out what your specific lot allows.
An ADU is a full independent living unit with its own kitchen, bathroom, and entrance, either attached to the home, detached, or converted from a garage. A JADU (junior accessory dwelling unit) is a smaller unit, max 500 square feet, created entirely within the existing walls of the home with a separate entrance and a small efficiency kitchen. JADUs can share the home's bathroom, which dramatically lowers cost, and they don't require additional parking. Los Angeles allows one of each on a single-family lot. JADUs are often the best return for homeowners who want rental income without the cost of new construction. Call (361) 315-4177 and we'll help you decide which fits your property and budget.
No. You don't need to be home while we work. If your ADU is attached to the house or you're doing a garage conversion, you'll be living alongside the project, and we work around that: clean job site at the end of every day, contained work areas, and a schedule you'll know in advance. For detached ADUs, many of our Los Angeles clients carry on with normal life while the build happens in the backyard. We coordinate access and keep you updated on milestones and inspection dates. The Garrison Code includes "Leave the site clean and squared away," and that's a daily practice, not a final-day promise. Call (361) 315-4177 to discuss how your project would fit your life.
Brands & Parts FAQs
We build to California code and use materials that hold up in Southern California's climate, which means sun exposure, dry heat, and the occasional heavy rain year. For siding we've used James Hardie fiber cement on many Los Angeles projects because it stands up to UV and doesn't warp in coastal air the way wood siding can. Framing is standard dimensional lumber and engineered beams spec'd by the structural engineer. Roofing is typically composition shingle or standing seam metal depending on the site. We don't lock you into a single brand; we spec what the plans call for and what your budget dictates. Every choice gets priced in writing before work starts. Call (361) 315-4177 to review material options for your build.
Prefab manufacturers like Abodu, Cover, and Dvele produce factory-built modules that can speed up construction in some Los Angeles neighborhoods, particularly where site access or HOA rules complicate traditional stick framing. At Fielding ADU Builders, we build stick-framed and site-built ADUs, which gives us full control over site adaptation, grading, and finish quality. Prefab units require the same foundation, utility, and permit work as site-built, so the savings come mainly in framing time, not total cost. Some Los Angeles lots with tight access or challenging terrain make prefab delivery impractical. If a prefab approach genuinely fits your site, we'll tell you. Call (361) 315-4177 for a straight answer on what your lot supports.
Los Angeles ADUs require a concrete foundation engineered for seismic loads, and the type depends on your soil and site. Crawl space foundations are common for garage conversions where the existing slab and footings can be reused or reinforced. New detached units typically sit on a slab-on-grade or a raised foundation with concrete perimeter footings, and hillside lots in neighborhoods like Mount Washington or Baldwin Hills may need pier or caisson systems drilled into bedrock. Every foundation is designed by a structural engineer based on soil reports, not guesswork. The permit package includes those calculations. Built square means the foundation is right before framing starts. Call (361) 315-4177 and we'll walk your lot before you spend a dollar on design.
Licensing & Insurance FAQs
Every pro working under the Fielding ADU Builders name is required to hold the license and insurance their state requires. That means a current California contractor's license for the class of work being performed, general liability coverage, and workers' compensation for any crew on your property. Ask any contractor you're considering for their license number and verify it with the Contractors State License Board before signing. It takes two minutes and protects you from unlicensed operators who are common in the Los Angeles ADU market. Our standard is simple: licensed, insured, and doing the job by the book. Call (361) 315-4177 and our coordinator can walk you through what credentials apply to your project.
Check four things: license status with the California Contractors State License Board, general liability insurance in their name, a written price before work starts, and a written warranty on the work. A license verifies the contractor passed trade and law exams and maintains a bond. Insurance protects you if something goes wrong on site. A written price keeps the number from moving after demo starts. And a written warranty tells you what they'll fix, and for how long, if the work fails. The Garrison Code covers the last two: price in writing before any work starts, and a one-year written guarantee on every Fielding ADU Builders project. Call (361) 315-4177 and we'll show you both before you sign anything.
Fielding ADU Builders locations use local trade partners for specialty work like electrical, plumbing, and HVAC, which is standard practice in Los Angeles construction. What matters is that every trade partner working under our name is required to hold the license and insurance their state requires for their trade, and their work falls under the same written scope and one-year guarantee as everything else on the job. You'll know who is on site and what they're doing. We don't hide behind layers of unfamiliar crews. One point of contact, one written price, one guarantee. Call (361) 315-4177 to discuss how we staff projects in your area.
Emergency & Response FAQs
During construction we respond to urgent issues on active projects, like a water intrusion discovered during framing or a failed inspection item that needs immediate correction. For completed ADUs, workmanship failures covered under the one-year written guarantee get scheduled and fixed, and if something is actively leaking or unsafe we prioritize it. Our office hours are Monday through Friday 7:00 AM to 7:00 PM and Sunday 7:00 AM to 7:00 PM. When you call during those hours, a live coordinator answers and connects you with the local team that covers your address. Call (361) 315-4177 and describe the issue. We'll tell you honestly how soon we can get someone there.
Start time depends on where you are in the process. If you already have approved plans and permits from Los Angeles or your local city, construction can often begin within 2 to 4 weeks. If you're starting from scratch, expect design and permitting to take 3 to 6 months before construction begins. Some cities in the region, like Santa Clarita or parts of Orange County, move permits faster than Los Angeles proper. We'll give you a realistic start date during the site assessment, then we'll hit it. That's the Garrison Code: show up inside the window we gave. Call (361) 315-4177 to lock in your timeline.
You can handle some finish work on your ADU in Los Angeles if the city allows owner-builder participation and you pull the right permits for it, but we don't recommend doing it during our construction window. Coordination gets messy when a homeowner is painting while inspectors are scheduled, and any work you do that fails a framing or electrical inspection creates delays. The biggest savings come from the design choices, not the labor: keep the footprint modest, choose stock cabinets, and convert an existing garage rather than building new. For anything structural, electrical, plumbing, or gas-related, hire a licensed pro. Those systems failing means serious danger or a teardown. Call (361) 315-4177 and we'll find the savings inside a build we manage start to finish.
Warranty & Guarantees FAQs
The Garrison Standard is the promise every Fielding ADU Builders location works to, and it's the reason the brand exists. It means we arrive inside the window we gave you, put the price in writing before any work starts, do the job by the book the first time, leave the site clean and squared away, and stand behind the work for a full year. The Garrison Code, the five-value set behind the standard, is the operating rule for every independently owned location in the network. Garrison Partners doesn't pretend to be from every town. Each location is a local business that agreed to work to the standard. That's the deal, in writing, before you pay a dollar. Call (361) 315-4177 to see it on paper.
The work is guaranteed in writing for a full year after completion. If anything we built fails during that year, we come back and make it right at no charge. That covers workmanship on framing, drywall, roofing, flooring, cabinetry, and finishes, as well as the systems our trade partners installed. It does not cover damage from misuse, neglect, natural disasters, or normal wear and tear. Appliance and fixture manufacturer warranties apply separately and run their own timelines. If a failure happens at month eleven, you call, we schedule, and we fix it. The guarantee is part of The Garrison Standard and it's in writing on every Fielding ADU Builders contract. Call (361) 315-4177 and we'll show you the exact language before you sign.
The one-year Fielding ADU Builders guarantee stays with the property for the remainder of the term, so a buyer who closes at month six gets the remaining six months of coverage. This matters in Los Angeles because so many homeowners build ADUs specifically to increase resale value, and a transferable workmanship warranty is a genuine selling point. In fact, a newly built permitted ADU is one of the highest-ROI improvements a Los Angeles homeowner can make, and buyers increasingly ask about the build quality and permit history before making an offer. We'll put the guarantee in writing on your contract. Call (361) 315-4177 to discuss your project and what it means for resale.
Written by Reed Calloway, Owner at Fielding ADU Builders, serving Los Angeles since 2006.
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