A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Maywood
ADU construction in Maywood, CA typically costs $180,000 – $420,000 for a detached unit and $90,000 – $180,000 for a JADU, with most projects taking 9 – 14 months from permit to move-in. Maywood is a fully built-out, roughly one-square-mile city with almost no vacant lots, so nearly every ADU here is either a detached unit squeezed onto an existing rear yard or a JADU carved out of the main house. That means setbacks, lot coverage, and Maywood’s own zoning rules drive the design from day one. If you’re weighing a garage conversion in Maywood, a backyard unit, or a JADU, call (361) 315-4177 and we’ll walk the lot with you before you spend a dollar on drawings.
Why Fielding ADU Builders Is Maywood’s Preferred ADU Builders Company
Fielding ADU Builders is the ADU and room-addition specialist inside the Garrison Partners family. We’re an independent local business that agreed to hold itself to The Garrison Standard: a written price before any work starts, permitted work done by the book, and a full year of written guarantee that most contractors never offer. Reed Calloway leads our crews, and every person who steps onto a Maywood property has passed a background check and wears a uniform. You know exactly who is on your site.
Our ADU Builders team has built across Maywood’s small lots and tight setbacks. We know what the city’s plan check will flag on a detached unit off Slauson Avenue, and we know how to keep a garage conversion from getting disqualified as a JADU. The Garrison Code is how we operate on every job: show up in the window, price in writing, by the book, leave it clean, stand behind it for a year. That last part is in writing. If the work fails inside 365 days, we come back and make it right at no charge.
Dispatch and scheduling are coordinated from the brand’s Los Angeles office; crews serve Maywood locally. A live person answers every call, 24 hours a day, 7 days a week. No voicemail, no callback queue.
Detached ADU in Maywood
Detached ADU work in Maywood means building a separate living unit in a rear yard that was never designed to hold one. On the small lots common here, between Slauson Avenue and the Los Angeles River, the challenge is hitting Maywood’s rear and side setback requirements while keeping enough usable yard for the main house. A detached ADU in Maywood typically runs $180,000 – $420,000 before permit fees, depending on size, foundation type, and whether you go stick-built or prefab.
Setbacks and Lot Coverage Come First
Before we draw anything, we measure the lot against Maywood’s zoning code. A unit that clears the setbacks on paper keeps the permit moving. One that doesn’t gets red-tagged or shrinks after drawings are done, and that’s the kind of surprise no homeowner wants.
Foundation and Utility Scope
Every detached ADU needs its own foundation, sewer lateral, and electrical service. On a corner lot off Slauson Avenue, our crew built a detached two-car-garage conversion and a new detached ADU sharing one rear yard, pulling a single Maywood building permit and a separate electrical service for the new unit. We set the detached unit to clear the rear and side setbacks, ran its sewer lateral to the existing wye, and used James Hardie siding to match the house.
JADU in Maywood
JADU work in Maywood is almost always a carve-out inside the primary dwelling’s existing footprint, not a separate building in the yard. That distinction matters because Maywood requires a JADU to be within the main house’s footprint. Treating a garage conversion like a JADU when the garage is detached will disqualify the permit. A JADU in Maywood typically runs $90,000 – $180,000, which is the most cost-effective way to add a rental unit or a place for family.
Conversions Inside the House
The most common JADU we build is a section of the main house converted into a studio with its own kitchenette, bath, and entrance. This works well on Maywood lots where there’s no rear yard to spare for a detached unit.
Efficiency and Code Requirements
A JADU has its own set of Maywood requirements for egress, ventilation, and separation from the main living space. We handle the full scope, from drawings through final inspection, so the permit doesn’t stall on a missed detail.
Trusted Brands We Service in Maywood
We work with leading prefab and modular ADU platforms including Cover, Dvele, and Boxabl, plus conventional builds using James Hardie siding and Tuff Shed-style structures. What that means for a Maywood homeowner is we can match the right build method to your budget and lot. Prefab units still need a proper foundation, utility hookups, and a Maywood inspection scope, and we handle all of it. We don’t carry brand parts on a shelf; we carry the know-how to get a prefab unit permitted and finished without the price moving mid-job.
Common ADU Builders Problems We See in Maywood Homes
- Plans drawn before the lot is measured. Scoping a detached ADU on a Maywood lot without checking rear and side setbacks and lot coverage first means the plan gets red-tagged or shrinks after drawings are done. We measure first, then draw.
- Garage conversion mistaken for a JADU. Maywood requires a JADU to be within the primary dwelling’s footprint. A detached garage conversion doesn’t qualify, and treating it like one will disqualify the permit.
- Prefab price surprises. Assuming a prefab like Abodu, Cover, Mighty Buildings, or Boxabl can be dropped in without a Maywood foundation, utility, and inspection scope changes the price mid-job. We scope all of that up front and put it in the written price.
- Utility runs underestimated. On the narrow lots common off Atlantic Boulevard and Randolph Street, sewer laterals and electrical service runs can get longer than expected. We verify the actual distances before the price goes in writing.
Pricing for ADU Builders in Maywood, CA
Here are the ranges we quote for Maywood’s market, before city permit and inspection fees. A detached ADU runs $180,000 – $420,000 depending on square footage, foundation, site access, and whether you choose stick-built or a prefab like Cover, Dvele, or Boxabl. A JADU within the main house runs $90,000 – $180,000. A garage conversion that qualifies as a separate dwelling unit typically falls between those two ranges. What moves the price: setbacks that force a smaller footprint, utility runs that go long, soil conditions at the foundation dig, and the finish level you choose inside. The price you approve on day one is the number on the final invoice. That’s The Garrison Standard. Call (361) 315-4177 for a free estimate and a written line-item quote.
We Also Serve Cities Near Maywood
Fielding ADU Builders serves homeowners across Bell, Huntington Park, Bell Gardens, and South Gate. If you’re in a neighboring city and researching your ADU options, our ADU Builders team can scope your lot the same way we do in Maywood: measure first, price in writing, permit by the book.
Serving Maywood, CA - Our Local Coverage Area
We’re based in the Maywood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Builders in Maywood
Yes. A JADU in Maywood must be within the primary dwelling’s existing footprint, not in a detached garage or a separate structure. If you have a detached garage you want to convert, that’s a different permit path, usually a detached ADU. Call (361) 315-4177 and we’ll tell you which one applies to your property before you spend anything on plans.
Often yes, but the unit has to clear Maywood’s rear and side setbacks and stay under the lot coverage limit. On the small lots common between Slauson Avenue and Randolph Street, that can mean a studio-sized unit instead of a one-bedroom. We measure the lot first and tell you the largest buildable footprint in writing. Call (361) 315-4177 for a free site assessment.
A building permit is required, along with separate electrical, plumbing, and mechanical scopes where applicable. Maywood inspections happen at foundation, framing, rough-in, and final stages. We pull all permits, schedule every inspection, and stand behind the work for a full year in writing. Call (361) 315-4177 and we’ll walk you through the exact list for your project.
A detached ADU in Maywood typically takes 9 – 14 months from permit submittal to final inspection, depending on plan check turnaround and the scope of utility work. A JADU inside the main house usually runs 5 – 8 months. We give you a calendar with the written price, and we don’t pad it. Call (361) 315-4177 to get a realistic timeline for your lot.
Nothing, if the scope was measured correctly up front. The price you approve before any work starts is the number on the final invoice. What would change it is if the city requires a change, you change the finish level, or we find something underground that no one could see without digging. When that happens, we document it and put the change in writing before any extra work proceeds. Call (361) 315-4177 for a written quote and you’ll see exactly what’s included.
If you’re in Maywood and serious about an ADU, start with a lot walk and a written price. Call (361) 315-4177. Reed Calloway and our Maywood crew will measure, scope, and quote it plain, with no obligation.
