







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Panorama City, CA
Benson ADU Builders handles ADU construction, home additions, and room additions in Panorama City, where the housing stock is almost entirely single-story ranch homes from the late 1940s and 1950s. Nearly every property here sits on a compact lot with a detached garage that was never designed to become living space, which means the real work happens before framing starts: slab evaluation, panel upgrades, and plumbing reroutes. If you’re pricing an ADU in Panorama City, call (661) 219-7906 and we’ll give you a written number, not a ballpark that shifts later.
Why Panorama City Homes Are Different

Panorama City was built as a planned post-World War II community, and that history shows up in the bones of every house. The original homes are wood-frame ranches on concrete slabs, many of which were poured without vapor barriers. That detail matters a lot when you’re converting a detached garage: moisture wicks up through the slab, and a finished floor laid directly on it will fail. We typically recommend either a raised floor assembly or extensive sealing before any finishes go in.
The electrical systems are another recurring issue. Original 100-amp panels were standard in the 1950s, and they’re usually undersized for a modern ADU with a mini-split, an induction cooktop, and a washer-dryer. Upgrading the panel is not optional in most Panorama City conversions; it’s a required step we flag on day one, in writing, with a line item you can see before you sign. The San Fernando Valley climate adds its own pressure: summer heat means cooling loads drive insulation choices, and Santa Ana wind season makes fire-resistant cladding worth the extra cost. None of this surprises us anymore, and we plan for it so you don’t absorb surprises mid-project.
Our Main Panorama City Services
Panorama City homeowners tend to call us about two things: converting an existing garage or adding square footage they can actually use. Here’s what each job involves on the ground.
ADU Builders in Panorama City
The classic Panorama City ADU project starts with a detached garage built in the 1950s. The telltale sign is the low-pitched gable roof with exposed rafter tails; if yours has that profile, it almost certainly sits on an original concrete slab with no vapor barrier. We handle the full conversion: slab remediation or raised flooring, panel upgrade, insulation, and finish work. We also build with prefab systems from Cover and Dvele, which can cut on-site framing time considerably. For a complete walkthrough of what an ADU costs and how we approach the build, see our ADU Builders in Panorama City page.

Home Addition Contractor in Panorama City
Adding square footage to a Panorama City ranch means working within the original roofline or tying in a new one cleanly. Most additions here are kitchen expansions, primary-suite additions, or a bumped-out living space. The challenge is that the existing slab and foundation were never engineered for a heavier attached structure, so we plan for new footings and a structural tie-in rather than assuming the old slab will carry the load. Prefab panel systems from Boxabl or Mighty Buildings can reduce framing time without sacrificing the look of a site-built addition. Details and pricing are on our Home Addition Contractor in Panorama City page.

Room Addition Contractor in Panorama City
A room addition in Panorama City is usually a single-purpose space: a home office, a fourth bedroom, or a den that finally has a door. These projects are smaller than a full home addition, but they hit the same infrastructure issues: slab condition, panel capacity, and HVAC. We scope each one with the same written-price discipline we use on full ADUs, so you know the cost of the panel upgrade and the plumbing tie-in before we start. One local condition we check early is whether the original slab has settled, which is common on these 70-year-old lots. See Room Addition Contractor in Panorama City for a full breakdown.

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 Panorama City
We’re authorized to build with Cover, Dvele, Mighty Buildings, and Boxabl, which means Panorama City homeowners get curated prefab options instead of a single take-it-or-leave-it product. Parts and panels are ordered to the job site, not warehoused off-site, so lead times stay predictable. Learn more about our brands and what each system is best suited for.
Pricing for ADU Company in Panorama City, CA
| Service | Typical range in Panorama City |
|---|---|
| ADU construction | $180,000 – $420,000 |
| Garage conversion ADU | $120,000 – $200,000 |
| Prefab ADU (installed) | $200,000 – $350,000 |
| JADU conversion | $80,000 – $150,000 |
| Home addition | $90,000 – $250,000 |
| Room addition | $50,000 – $120,000 |
| Electrical panel upgrade | $3,500 – $6,500 |
| Slab moisture remediation | $5,000 – $15,000 |
| Foundation / structural tie-in | $8,000 – $25,000 |
What pushes a Panorama City price up is usually what’s under the floor: original slab moisture problems and 100-amp panels that need replacing before a single wall goes up. Those costs are never hidden in our process. You get a written price before any work starts, and that number doesn’t creep after demo day.
Neighborhoods We Serve in Panorama City
We work throughout Panorama City, from the blocks north of Roscoe Boulevard to the streets south of Parthenia Street, and we’re familiar with the lot patterns and foundation quirks in each pocket. Response to this area is typically same-day for estimates, and scheduling follows the written scope you approve.
- North Panorama City
- South Panorama City
- Panorama City core (Roscoe/Van Nuys area)
- Chase Street corridor
- Blythe Street area
Service Area – Cities Near Panorama City
Besides Panorama City, our crews regularly take on projects in Mission Hills, CA, San Fernando, CA, Granada Hills, CA, and Sylmar, CA. If you’re in one of those areas and planning an ADU or addition, the same written-price process applies.
Serving Panorama City, CA - Our Local Coverage Area
We’re based in the Panorama 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 Company in Panorama City

We schedule estimates in Panorama City within a day or two, and a live person answers the phone around the clock if you call (661) 219-7906. Start dates depend on permit timing and material lead times, which we lay out in the written scope before you commit.
Panorama City falls under Los Angeles city permitting rules for ADUs and additions, which govern setbacks, lot coverage, and parking requirements. HOA rules are rare in this area given the age of the housing stock, but if your street has one, we’ll flag it before you sign anything.
No. Every Panorama City project gets a written price before any work begins, and we don’t bill scope creep after the fact. If something changes mid-project, you approve a written change order first. Call (661) 219-7906 for an exact quote, not a range.
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 Panorama City Customers Say
"Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W."Garage conversion into a guest suite. I could see the permit status in the app, which made it painless."
- Rick F."Home addition blends in with the original house."
- Vic S.





