ADU Company in Granada Hills, CA
Adding an accessory dwelling unit in Granada Hills means building on some of the largest residential lots in the San Fernando Valley, where ranch homes from the 1950s through 1970s sit on parcels of 9,000 to 15,000 square feet or more. That setup creates real opportunity, but it also brings climate conditions and permit requirements that most Valley contractors never plan for. We’re Lodgewick ADU Builders, and we put the price in writing before any work starts. Call (254) 602-5618 to talk through your lot.
Why Granada Hills Homes Are Different
Granada Hills splits into two distinct building environments. South of Rinaldi Street, you’re working with classic flat-lot ranch suburbia: detached two-car garages, wide setbacks, and soil that’s generally predictable. North of Rinaldi, the hillside neighborhoods climbing toward the Santa Susana foothills fall inside Los Angeles’s Very High Fire Hazard Severity Zone, which legally triggers Chapter 7A construction standards for any new ADU. That means ember-resistant vents, ignition-resistant exterior cladding, and frequently a fire sprinkler system.
The 1994 Northridge earthquake, epicentered just a few miles away, left a mixed legacy across Granada Hills. Many homes received foundation retrofits or post-quake repairs of widely varying quality. Before we design an ADU foundation or structural tie-in, we evaluate what’s actually under the existing house. Some cripple-wall retrofits are solid. Others were rushed in the mid-1990s and need correction before new construction can safely attach. Skipping that step saves money on paper and costs far more later.
Heat is the other Granada Hills reality. Summer temperatures regularly pass 105°F, and cooling load calculations need to reflect that. A detached ADU with an undersized HVAC system will be miserable by August. We size mechanicals for inland Valley conditions, not coastal averages.
Our Main Granada Hills Services
These are the three jobs Granada Hills homeowners call us about most often. Each has its own page with pricing detail, permit specifics, and what to expect on your street.
Home Addition Contractor in Granada Hills
A home addition in Granada Hills often means expanding a mid-century ranch without disturbing the original roofline. We tie new foundations into what’s already there, which matters on lots where the 1994 earthquake left structural repairs of uneven quality. Hillside parcels north of Rinaldi may trigger Chapter 7A requirements even on a bedroom addition, not just an ADU. Russ Delmar walks every Granada Hills addition site personally before any numbers go on paper. Home Addition Contractor in Granada Hills
Garage Conversion Contractor in Granada Hills
The detached two-car garage is the most common ADU starting point in Granada Hills. These 400-square-foot structures sit on slabs poured when the house went up, usually in the 1950s or 1960s. Some slabs have held up well. Others have settled or cracked and need evaluation before we frame walls inside. Unpermitted conversions from the 1980s and 1990s are also common here, and bringing one up to current code is a different job than starting clean. Garage Conversion Contractor in Granada Hills
ADU Builders in Granada Hills
A new detached ADU on a 10,000-square-foot Granada Hills lot gives you room for a comfortable one- or two-bedroom unit without sacrificing the yard. North of Rinaldi, plan for fire-hardening costs that don’t exist south of the street. The LADBS plan check for VHFHSZ properties often routes to a specialist reviewer, adding three to six weeks to the approval timeline. We factor that into our schedule from day one rather than discovering it mid-permit. ADU Builders in Granada Hills
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 Granada Hills
We work regularly with Abodu, Cover, and Dvele for prefab ADU projects in Granada Hills. Parts and materials for these systems are regionally available, which keeps repair and service calls moving. Our brands page walks through the options and when each one fits a lot.
Pricing for ADU Company in Granada Hills, CA
| Service | Typical range in Granada Hills |
|---|---|
| Detached ADU (one-bedroom, standard finishes) | $150,000 – $225,000 |
| Detached ADU (two-bedroom) | $200,000 – $300,000 |
| Garage conversion to ADU | $90,000 – $160,000 |
| Attached ADU (conversion of existing space) | $80,000 – $140,000 |
| Prefab ADU (Abodu, Cover, Dvele) | $160,000 – $280,000 installed |
| Home addition (400 – 600 sq ft) | $180,000 – $300,000 |
| Home addition (600 – 1,000 sq ft) | $250,000 – $450,000 |
| Fire sprinkler system (required on many VHFHSZ lots) | $4,000 – $10,000 |
| Foundation repair or cripple-wall retrofit (when required) | $6,000 – $25,000 |
Hillside lots north of Rinaldi push prices up through Chapter 7A materials, fire sprinklers, and the slower permit path that comes with VHFHSZ review. Bad foundation conditions from post-quake repairs also add cost when they surface. Whatever the number ends up being, you’ll have it in writing before we start – no change orders at the door, no surprises once work begins.
Neighborhoods We Serve in Granada Hills
We work across the full Granada Hills footprint, from the flat streets along Chatsworth Street up into the hillside communities. Response time for a first site visit typically lands within a day or two of your call.
- Knollwood
- Balboa Highlands
- North of Rinaldi / VHFHSZ hillside areas
- Granada Hills South
- Zelzah corridor area
Service Area – Cities Near Granada Hills
Beyond Granada Hills, our crews serve the surrounding northwest Valley communities. If you’re in San Fernando, CA, Northridge, CA, Porter Ranch, CA, or Chatsworth, CA, the same written-price commitment and 365-Day Done Right Promise applies.
Serving Granada Hills, CA - Our Local Coverage Area
We’re based in the Granada Hills 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 Granada Hills
We typically schedule a first site visit within one to two days of your call. Russ Delmar handles most Granada Hills walk-throughs personally, which means you’re talking to the person who will actually sign your proposal, not a sales rep.
Your project will almost certainly require Chapter 7A construction standards and possibly fire sprinklers. We include that in our initial written estimate so there’s no mid-project surprise when LADBS routes the plan check to a wildfire-specialist reviewer. Call (254) 602-5618 to get a real number in writing.
If work we do on your Granada Hills project fails within 365 days, we come back and make it right. That commitment is written into every contract, not spoken as a sales line. If you’re comparing estimates, ask the other contractor to put that sentence in writing and see what happens.
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 Granada Hills Customers Say
"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"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