ADU Company in Avocado Heights, CA
Lodgewick ADU Builders is the ADU company Avocado Heights homeowners call when they want a real number in writing before any work starts. Avocado Heights is unincorporated Los Angeles County, which means every accessory dwelling unit, garage conversion, and home addition here routes through County permitting rather than a city building department. We handle that process daily, and we put our 365-Day Done Right Promise on every project. Call (254) 602-5618 for a free estimate.
Why Avocado Heights Homes Are Different
Avocado Heights was built out after World War II, when the avocado and citrus orchards gave way to single-story ranch homes on lots that are larger than what you’ll find in La Puente or West Covina. Many of those lots run 8,000 to 15,000 square feet or more, and a lot of them still have detached garages or old agricultural outbuildings sitting on them. That’s a big deal for ADU work: a detached garage conversion or a new detached ADU often has room to breathe here in a way it simply wouldn’t on a tighter city lot.
The climate matters too. Avocado Heights sits inland in the eastern San Gabriel Valley, where summer days regularly top 95°F. That’s 15 to 20 degrees hotter than coastal Los Angeles on the same afternoon. A new ADU here needs properly sized mini-split HVAC and real mechanical ventilation, because an under-cooled 400-square-foot unit becomes unusable by late June. We size for Avocado Heights heat, not generic LA assumptions.
One more thing that shows up on Avocado Heights jobs: older lots often have remnant concrete pads from avocado-era equipment sheds or water tanks. When we assess a site, we check those slabs early. A sound existing pad can legally anchor an ADU foundation under County standards and cut thousands off construction costs. A cracked or improperly reinforced one has to come out before permits clear. That early assessment changes the budget, and we make sure it happens before the written price goes out.
Our Main Avocado Heights Services
Most Avocado Heights homeowners call us about one of three things: adding square footage to their existing home, converting a garage into living space, or building a standalone ADU in the backyard. Each service has its own page with local details, but here’s the short version for each.
Home Addition Contractor in Avocado Heights
A home addition in Avocado Heights usually means extending a 1950s or 1960s ranch outward or upward. These older homes often have outdated electrical panels that need upgrading before a new master suite or family room can pass County inspection. We handle the full scope: foundation, framing, HVAC, electrical, and finish work, with the permit routing through LA County Building & Safety. See the full breakdown on our Home Addition Contractor in Avocado Heights page.

Garage Conversion Contractor in Avocado Heights
Garage conversions make particular sense in Avocado Heights because so many homes have detached garages set back from the house, which gives you a cleaner separation between the main home and the new living space. The conversion itself means turning the garage into a permitted dwelling unit: insulation, drywall, flooring, electrical, a bathroom where feasible, and a proper mini-split for those 95°F summers. Details are on our Garage Conversion Contractor in Avocado Heights page.

ADU Builders in Avocado Heights
A detached ADU here can be a new build in the backyard or a prefab unit placed on an existing pad. Avocado Heights lots are big enough for a real standalone unit with its own entrance and a small yard area. We work with manufacturers like Abodu and Boxabl, and we know which prefab designs clear LA County’s pre-approved plan program faster than fully custom builds. Read more on our ADU Builders in Avocado Heights 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 Avocado Heights
We build with and install ADU and addition systems from Abodu, Cover, Dvele, Mighty Buildings, and James Hardie siding products. Parts and materials for these brands are ordered through our local supply channels, not drop-shipped from out of state, which means shorter lead times on Avocado Heights builds. See our brands for the full list.
Pricing for ADU Company in Avocado Heights, CA
These are the ranges Avocado Heights homeowners can expect for the work we do most. Every project still gets a written line-item quote before anything starts, but this table gives you a real ballpark without having to call.
| Service | Typical range in Avocado Heights |
|---|---|
| Detached ADU (new construction, 400 – 800 sq ft) | $180,000 – $320,000 |
| Garage conversion to ADU (finished, permitted) | $95,000 – $160,000 |
| Home addition (single room, 200 – 400 sq ft) | $75,000 – $135,000 |
| Primary suite addition with bathroom | $120,000 – $190,000 |
| Second-story addition (per sq ft) | $280 – $420 |
| Prefab ADU installation (unit + site work) | $140,000 – $250,000 |
| Foundation and slab work (new or retrofit) | $11,000 – $28,000 |
| Mini-split HVAC for ADU or addition | $6,500 – $14,000 |
| Electrical panel upgrade (100A to 200A) | $3,500 – $6,500 |
| Full ADU project management and permits | $8,500 – $22,000 |
What pushes a number toward the high end in Avocado Heights is usually one of three things: a cracked old slab that has to be removed, an electrical panel that predates modern code, or a lot with drainage issues that need grading before the foundation goes in. We identify each of those before we give you a written price, so the number on the quote is the number you pay.
Neighborhoods We Serve in Avocado Heights
We work across all of Avocado Heights, from the streets along Don Julian Road to the neighborhoods east of Avocado Heights Park. Our crews are familiar with the lot patterns and setbacks in each area, and we’re typically able to start site assessments within a few business days of your call.
- Don Julian Road area
- Avocado Heights Park vicinity
- North Avocado Heights near Valley Boulevard
- East side near San Jose Creek
- South of the 60 Freeway corridor
Service Area – Cities Near Avocado Heights
Our Avocado Heights crews also take on ADU and addition projects in nearby communities. If you’re a little outside our core area, call and we’ll confirm coverage. We serve Los Angeles, CA, Long Beach, CA, Anaheim, CA, and Riverside, CA as part of our broader service area.
Serving Avocado Heights, CA - Our Local Coverage Area
We’re based in the Avocado Heights 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 Avocado Heights
Because Avocado Heights is unincorporated LA County, your ADU permit goes through the County’s Department of Regional Planning, not a city counter. Plan on roughly 4 to 8 months for plan review and permits, though a pre-approved County plan can shave that down substantially. Call (254) 602-5618 and we’ll give you a realistic timeline for your specific lot.
Yes. Every Avocado Heights ADU, garage conversion, or addition we build includes full permit management through LA County Building & Safety. We prepare the drawings, submit the application, respond to plan-check comments, and schedule inspections. You never sit on hold with the County unless you want to.
That’s the only way we work. After a site assessment, you get a written price for the full project scope before any contract is signed and before any work begins. If the price changes later, that’s on us, not on you. Call (254) 602-5618 to set the assessment.
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 Avocado Heights Customers Say
"Junior ADU conversion inside the house. They protected the rest of our place with plastic and daily cleanup. Done nearly on schedule and on the number they quoted."
- Sabrina Veld"Garage conversion into an office and guest room. Fair written price, finished close to on schedule, and they fixed a small drywall crack under warranty months later without any hassle."
- Diana Cho"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills