







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 Temple City
Building an ADU in Temple City is rarely a question of whether you can. The post-2017 state statutes cleared that path. The real question is whether your specific lot, with its mid-century footprint and rear setback, can hold the unit you’re picturing without a variance fight or a surprise utility bill. Fielding ADU Builders handles that question first, before you spend a dime on design. We scope the site, check the setbacks against Temple City’s municipal code, verify your service panel, and put the full price in writing. Call Reed Calloway’s team at (361) 315-4177 and we’ll walk the property with you.
Why Fielding ADU Builders Is Temple City’s Preferred ADU Builders Company

Temple City homeowners tend to be specific. They’ve lived here long enough to know their lot lines, their panel capacity, and their planning department’s hours. What they want from an ADU Builders team is not a sales pitch. They want a crew that reads the municipal code the same way they do, line by line, and prices the work for what it actually is.
That’s the role we fill. Fielding ADU Builders is part of the Garrison Partners family, building to The Garrison Standard since 2006. Every Temple City project gets a written price before any work starts, and a written one-year guarantee after it’s done. If something fails inside that year, we return and fix it at no charge. That’s not a promise we hedge on. It’s on paper.
Our crews are background-checked and uniformed. They show up in a marked truck, not an unmarked van. Every call to our office is answered by a live person, any hour of any day, including the one you make at 10pm after the planning department emails back. Coordination for scheduling is handled from the brand’s Los Angeles office. The work itself is done by crews serving Temple City directly.
ADU Contractor in Temple City
An ADU Contractor in Temple City is the licensed builder who carries the project from the first site visit through final inspection: plan drawings, permit submittal, foundation or slab work, framing or prefab set, utility connections, drywall, finishes, and the sign-off that lets you legally rent or occupy the unit. A typical detached ADU here runs $220,000 – $310,000 for a finished, permitted unit, before permit fees. Garage conversions typically land at $110,000 – $165,000. Those numbers reflect Temple City’s actual labor, material, and planning costs, not a national average.
Written Scope Before Any Work Starts
We don’t start with an estimate and call it a contract. We start with a written scope: the square footage, the foundation type, the electrical panel work, the trenching route from the meter, the siding, the interior finishes. Every line is priced. You approve the document. That document is the price.
Permit Coordination, Not Hand-Waving
Temple City plan check reviews the drawings, not the brochure. We prepare submittals that answer setback questions, floor-area ratio calculations, and utility upgrade requirements in the language the planner expects. Then we attend to the comments until the permit is issued. That’s the unglamorous middle of the job that separates a completed ADU from a foundation left waiting.
ADU Design in Temple City

ADU Design in Temple City is where most projects succeed or stall. The city’s small residential lots and mid-century street grid mean most detached units are constrained by the existing home’s footprint and rear setback. So feasibility hinges on how the unit is sited relative to the primary structure and property lines, not lot size alone. A design that ignores this gets bounced in plan check. A design that respects it moves.
Our design process begins with a site walk. We measure the real setback from the alley to the rear wall, from the side fence to the proposed unit, and from the existing service panel to the future sub-panel. We confirm what the city will allow, then we draw to that, not to a generic template. Design fees for a Temple City ADU typically run $4,500 – $9,000 depending on whether the unit is prefab or custom, and whether a structural engineer is required. We work in-house where we can and pull in licensed local engineers when the soil or the existing structure demands it.
Prefab Design and Siting
Prefab platforms like Abodu, Cover, and Dvele have good-looking product. But delivery is not a permit. The design still has to pass Temple City plan check, and the site still has to take the crane or panel set. We’ll match the right prefab system to your lot and budget, and run the drawings through the same review we’d run a stick-built unit through.
Custom Detached and Garage Conversions
A custom detached ADU gives you more control over setback fit, window placement, and roofline. A garage conversion gives you the cheapest square footage, if the slab and the walls are sound. We’ll price both honestly. Some Temple City garages are too narrow or too far gone to convert at a rational number, and we’ll tell you that before you spend on design.
Trusted Brands We Service in Temple City
We coordinate regularly with prefab and modular platforms including Abodu, Cover, and Dvele, and we build conventionally with James Hardie siding where the design calls for it. That’s not a list we rattle off. It means when a Temple City homeowner has already been researching a specific brand, we can speak to it fluently, check it against the local code, and price the foundation, panel, trenching, and finish work accurately. Delivery is the easy part. Making it legal here is the work.
Common ADU Builders Problems We See in Temple City Homes
- Assuming any rear-yard space works without first verifying setbacks and floor-area ratios against Temple City’s municipal code and the existing home’s footprint. We see this constantly. A yard looks big until the setback math removes ten feet on two sides.
- Treating prefab panels from brands like Abodu, Cover, or Boxabl as a shortcut past local plan check and utility coordination. The panels arrive fast. The permit doesn’t. Delivery does not equal a legal unit.
- Underestimating utility trenching and panel upgrades when the existing service panel cannot support a new ADU load, especially on older mid-century Temple City homes. A 100-amp panel from 1958 will not feed a new kitchen and mini-split. That’s a $3,500 – $6,500 line item that shows up too late on bad bids.
- Siting the ADU without considering the existing home’s roofline and window placement. On Temple City’s tight mid-century lots, a unit placed three feet from the primary bedroom window creates a future privacy problem and sometimes a code review comment. A little design care prevents both.
Pricing for ADU Builders in Temple City, CA
Here are the honest ranges for Temple City, as of this writing. A detached custom ADU of 500 – 750 square feet runs $240,000 – $310,000, all in, before permit fees. A prefab ADU of similar size typically lands at $220,000 – $270,000. A garage conversion runs $110,000 – $165,000, and a junior ADU inside the existing footprint runs $85,000 – $130,000. The biggest cost drivers in Temple City are panel upgrades, trenching distance from the meter, foundation type, and whether the city requires any setback variance. We’ll walk your specific lot, price every line, and hand you the document. The number you approve is the number on the final invoice. Call (361) 315-4177 for a free site visit and a written quote.
We Also Serve Cities Near Temple City
Alongside Temple City, we run ADU projects in El Monte, San Gabriel, Arcadia, and Rosemead. The code differences are real but manageable, and our crews know the planning desks in each. If you’re reading this from a neighboring community, the same team behind Temple City projects can help you scope yours.
Serving Temple City, CA - Our Local Coverage Area
We’re based in the Temple City 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 Temple City
Yes, in nearly every case you need a foundation or slab, even for a prefab unit. The prefab panel or module sits on a prepared foundation that we design and pour to match the unit’s point loads and your soil. Temple City’s plan check will not waive a foundation just because the unit was built in a factory, and on the older mid-century lots around Freer Street, the slab often has to be engineered. Expect foundation and site prep to add $18,000 – $32,000 depending on access and soil. Call (361) 315-4177 for a line-item quote on your specific lot.
Plan for 4 to 8 months from submittal to permit issuance on a typical Temple City ADU, assuming no major plan-check comments. Simpler garage conversions can move faster; custom detached units with a variance can stretch past 10 months. The municipality has a reputation for thorough reviews, and that is not a complaint. It’s the process. We manage the submittal, respond to comments, and keep the schedule visible. Call (361) 315-4177 and we’ll give you a realistic calendar for your project after one site visit.
Yes, and it’s often the most cost-effective option on a Temple City lot, because the slab and two or three walls already exist. The catch is the condition. If the garage slab is cracked, the roof is failing, or the walls are out of square beyond repair, the “cheap” conversion becomes a teardown with a new foundation, and your cost climbs toward detached-new numbers. We’ll inspect it and tell you honestly. A typical Temple City garage conversion runs $110,000 – $165,000. Call (361) 315-4177 for a free garage assessment.
We have working relationships with Abodu, Cover, and Dvele, among others. That means we can receive their drawings, run them through Temple City plan check, spec the foundation and panel, and finish the unit to match the existing house. It also means we can tell you when a given brand’s stock model will not fit your setbacks, before you pay a deposit. Call (361) 315-4177 and we’ll walk the options with you on site.
Sometimes. State law allows both a detached ADU and a JADU in many scenarios, but Temple City’s setback rules and floor-area ratio limits decide whether both can actually fit on your specific lot. On smaller mid-century parcels, the existing garage’s footprint may leave insufficient rear yard for a second detached structure without a variance. We check this before design. Call (361) 315-4177 and we’ll measure it on the first visit.
Written by Reed Calloway, Owner at Fielding ADU Builders, serving Temple City under The Garrison Standard.



