ADU Company in Montebello, CA
Lodgewick ADU Builders handles accessory dwelling units, garage conversions, and home additions across Montebello, CA. This page is the starting point for understanding what makes an ADU project here different from one in Pico Rivera or Monterey Park. Montebello’s post-war tract housing, slab foundations, and inland heat shape nearly every job we bid. And the city’s legacy oil-field history can add a permitting step most homeowners never see coming. Call (254) 602-5618 for a free estimate and a written price before any work starts.
Why Montebello Homes Are Different
Montebello sits directly atop the historic Montebello Oil Field, one of Southern California’s longest-continuously-producing oil fields. Scattered active and abandoned wells across residential parcels create a permitting wrinkle that’s almost unheard of in neighboring Monterey Park or Pico Rivera: ADU projects flagged as near a well in the city’s records may require a CalGEM well-proximity review before a building permit issues. Catch it late, and your schedule shifts by weeks. Experienced local permit expediters run every older Montebello parcel against the California Department of Conservation’s well-finder tool before plan-check submission, especially near the east-side hills, where a surprising number of lots carry legacy well notations.
Layered on top of that is the housing stock itself. Montebello’s residential grid is overwhelmingly post-war single-family ranch and bungalow-style tract homes built between the late 1940s and early 1970s, typically 1,000 to 1,500 square feet on 5,000 to 7,500 square foot lots. Detached one-car garages are the dominant ADU conversion target. Slab-on-grade foundations from that era and original single-wall stucco construction frequently require structural upgrades before a garage conversion can meet current energy and habitability codes. This is not a city where you can assume the existing shell is ready.
The climate shapes decisions too. Montebello runs 8 to 12°F hotter than the westside on summer afternoons. Passive-ventilation-only ADU designs don’t hold up here, so nearly every project we price includes a ductless mini-split system, a cost line that surprises homeowners who think of Montebello as mild-climate territory.
Our Main Montebello Services
Montebello homeowners call us most about three things: adding square footage to an existing home, converting a detached garage into livable space, and building a new ADU from the ground up. Each has its own dedicated page with local pricing and detail.
Home Addition Contractor in Montebello
A home addition in Montebello usually means extending off the back of a 1940s or 1950s ranch, and that starts with a foundation that was never engineered for the load. We handle structural upgrades, roofline tie-ins, and the same CalGEM awareness that applies to every project here. The inland heat also means we spec insulation and glazing above code minimums so the new square footage stays usable in August. For full scope and pricing, see our Home Addition Contractor in Montebello page.

Garage Conversion Contractor in Montebello
Montebello’s detached one-car garages, many of them single-wall stucco on slab, are the most common ADU starting point in the city. The conversion typically requires structural reinforcement, a new insulated envelope, and a mini-split for cooling, because the original garage was never meant to be lived in. We also check for legacy well notations before plan-check so the permit process doesn’t reset on you. Full pricing and process are on the Garage Conversion Contractor in Montebello page.

ADU Builders in Montebello
New detached ADUs in Montebello have to work within smaller rear yards and a hot summer climate. We match prefab and panelized systems from brands like Abodu and Dvele to each lot, then handle the city’s oil-field review step before it becomes a delay. Multigenerational households here are among the most ADU-motivated in the San Gabriel Valley, and most of our builds are designed as long-term in-law units, not rentals. Details start on the ADU Builders in Montebello page.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Montebello
We work hands-on with Abodu, Cover, and Dvele systems, which covers most of what Montebello homeowners choose for prefab and panelized ADUs. Our familiarity with these brands means less back-and-forth on structural requirements and faster plan review. See our brands for the full lineup.
Pricing for ADU Company in Montebello, CA
| Service | Typical range in Montebello |
|---|---|
| Garage conversion to ADU | $90,000 – $160,000 |
| Detached new ADU (1 bed / 1 bath) | $180,000 – $280,000 |
| Detached new ADU (2 bed / 2 bath) | $280,000 – $420,000 |
| Home addition (400 – 800 sq ft) | $120,000 – $260,000 |
| Home addition (800 – 1,200 sq ft) | $260,000 – $450,000 |
| Site prep and foundation work | $15,000 – $45,000 |
| HVAC (ductless mini-split install) | $6,000 – $14,000 |
| Structural upgrades for post-war slab homes | $8,000 – $30,000 |
| CalGEM well-proximity review coordination | $400 – $1,200 |
| Permit package and expediting | $4,000 – $10,000 |
What pushes a Montebello job toward the top of those ranges is the foundation: post-war slab homes often need structural work before walls go up, and that’s site-specific. The other variable is the oil-field review, which adds time and a coordination line. Every estimate we give is a written, line-item price before work starts, and it doesn’t change at the door.
Neighborhoods We Serve in Montebello
We cover all of Montebello, and the neighborhoods below give a sense of the range, from the east-side hills to the flatter tracts near the 60. Response time for quotes is typically within a few business days anywhere in the city.
- East Montebello Hills
- La Merced
- South Montebello
- North Montebello near Grant Rea Park
- Whittier Boulevard corridor
Service Area – Cities Near Montebello
Most of our Montebello homeowners come from the city itself, but we regularly bid projects in the surrounding communities. If you’re in Pico Rivera, CA, Monterey Park, CA, Rosemead, CA, or Bell Gardens, CA, the same written-price and guarantee standards apply.
Serving Montebello, CA - Our Local Coverage Area
We’re based in the Montebello 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 Company in Montebello
CalGEM reviews projects near recorded oil wells, and many older Montebello parcels have legacy well notations. If your lot is flagged, it adds a review step before the building permit issues. We run the well-finder check on every older parcel before submitting plans, so it rarely becomes a late-stage surprise. Call (254) 602-5618 for a free estimate.
Yes, often. Slab-on-grade foundations from the late 1940s through early 1970s were not engineered for habitable space. Most conversions include structural reinforcement before framing and insulation begin, and we’ll scope it in your written price up front, not as a mid-project add-on.
Most homeowners start 3 to 6 months before they want the project to begin. The oil-field review, permit plan-check, and structural scope all take time. We’ll lay out a real timeline during the estimate, and the price stays the same regardless of how long the city takes. Call (254) 602-5618 to schedule a free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Montebello Customers Say
"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild"Garage conversion into a studio for our teenager. Honest about what was realistic and what wasn't, finished close to schedule, and cleaned up the site daily."
- Marcus Beaumont