ADU Company in Garden Grove — Design, Permits and Build Under One Contract

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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ADU Company in Garden Grove, CA

Kitchen remodeling in Garden Grove usually means working inside a 1950s or 60s ranch home that was never designed for how families cook today. We spend a lot of time in these single-story stucco houses opening walls, upgrading undersized electrical panels, and replacing aging plumbing before a single cabinet goes in. Foundry ADU Builders handles the full kitchen remodel, from layout and permits to finished cabinets and countertops. If you’re planning an ADU with a full kitchen, we build that too. Call (866) 251-7857 for a free estimate.

Call (866) 251-7857

Why Garden Grove Homes Are Different

Garden Grove’s housing stock is mostly post-war tract ranch homes: wood-frame, stucco exterior, slab or low crawlspace foundation. They were built quickly and affordably, which means the bones are simple but the systems are old. We regularly find 100-amp electrical panels that can’t support a modern kitchen with induction cooktops and double ovens. Galvanized plumbing from the 50s and 60s is common, and it’s usually at the end of its life by the time homeowners call us. The mild coastal-influenced climate means kitchens don’t need heavy heating, but the dry Santa Ana season and long sun exposure mean window placement, venting, and shade detailing matter more than insulation. Garden Grove kitchens also reflect the city’s cultural mix: large Vietnamese-American and Korean-American households cook differently than the original floor plans anticipated. Wok cooking, family-sized meals, and multigenerational use all shape how we design these spaces.

Our Main Garden Grove Services

Garden Grove homeowners call Foundry most often for two projects: building a detached ADU in the backyard, and remodeling the bathroom in the main house or the new unit. Here’s what each looks like in this city.

ADU Builders in Garden Grove

Garden Grove is one of the most active ADU cities in Orange County because the wide, deep lots and alley access make detached units genuinely workable. Per the city’s state-aligned rules, detached ADUs can go up to 800 square feet with 16-foot height and 4-foot rear and side setbacks, with no owner-occupancy requirement. That means a lot of our Garden Grove work is placing a stand-alone unit behind a single-story ranch home, with its own entry off the side yard so the alley stays clear. Foundry builds across the full spectrum: site-built, prefab from Abodu or Cover, factory-built modular from Mighty Buildings or Boxabl, or a Tuff Shed conversion for a tighter budget. We handle permits, foundation, utilities, and interior finish as one contractor. ADU Builders in Garden Grove covers the full process.

ADU Builders in Garden Grove

Bathroom Remodeling in Garden Grove

Bathrooms in Garden Grove’s older ranch homes tend to be small, compartmentalized, and starved for storage. The slab foundations make moving drains expensive, so a lot of our work here is reconfiguring within the existing footprint: swapping a tub for a walk-in shower, adding a double vanity, improving ventilation to handle moisture in the marine-layer months. When we remodel a bathroom inside an ADU, the job usually includes separate utility metering and accessible layout for an older parent or adult child. The permitting path in Garden Grove is straightforward for like-for-like bathroom work, but any drain line relocation triggers plan review. Bathroom Remodeling in Garden Grove walks through scope and pricing for both main-house and ADU bathrooms.

Bathroom Remodeling in Garden Grove
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What happens when you call

  1. 1
    A real person answersNo phone trees — you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Kitchen Remodeling in Garden Grove

Kitchen remodeling in Garden Grove is about fixing what 60 years of use and undersized systems left behind. The typical 1950s ranch kitchen has one narrow galley layout, a 100-amp panel that can’t support modern appliances, galvanized supply lines with low flow to the sink, and zero ventilation for serious cooking. We open the space, upgrade the electrical and plumbing, and rebuild the kitchen around how your household actually cooks, whether that’s an in-law suite with a wok-ready range or a rental ADU kitchen built for tenants who expect a full-size refrigerator and dishwasher. Foundry carries the entire job from demolition to finished trim, and we can pair the kitchen work with an ADU build under one contract. If you want to see how this fits a larger plan, our Kitchen Remodeling hub covers the full approach.

Galley Kitchen Opening

Signs you need it

A 1950s Garden Grove galley kitchen traps one cook between two walls, blocks any sightline to the dining room, and forces a family of four to eat in shifts.

What it costs in Garden Grove

Removing the wall between kitchen and dining room, adding a header beam, and opening the galley typically runs $15,000 to $28,000 here, plus countertop and cabinet work if you’re doing a full rebuild.

How we do it

We check whether the wall is load-bearing, engineer a header if needed, reroute any plumbing or electrical in the wall, and finish the opening with matching flooring and drywall.

Full Kitchen Rebuild

Signs you need it

Your cabinets are delaminating, the layout can’t fit a standard refrigerator, and the range sits on a circuit that trips whenever the toaster is on.

What it costs in Garden Grove

A complete garden-grove kitchen rebuild with new cabinets, counters, appliances, plumbing, and electrical typically falls between $30,000 and $65,000 depending on finish level and how much the main house’s infrastructure needs upgrading first.

How we do it

We demo to the studs, upgrade the panel and supply lines, relocate drains where the slab allows, then install new cabinets, stone or quartz counters, appliances, lighting, and ventilation in sequence.

What Kitchen Remodeling Costs in Garden Grove

Item Typical range in Garden Grove
Galley kitchen opening (wall removal, header, refinish) $15,000 – $28,000
Full kitchen rebuild with mid-range finishes $30,000 – $65,000
Kitchen inside a new ADU $20,000 – $45,000

How long does a kitchen remodel take in Garden Grove?

A galley opening typically takes 2 to 3 weeks; a full rebuild runs 6 to 10 weeks depending on whether the panel and plumbing need upgrades before cabinets go in. One contractor from demolition to finished kitchen keeps the schedule realistic. Call (866) 251-7857 for an exact timeline.

Do you handle the permits for a Garden Grove kitchen remodel?

Yes, we pull every permit the city requires, including electrical and plumbing, and we schedule inspections ourselves. Any wall removal or drain relocation in Garden Grove triggers plan review, and we handle that paperwork. Call (866) 251-7857 to get the process started.

Brands We Service in Garden Grove

We work with Boxabl, Plant Prefab, and Tuff Shed, and we use James Hardie fiber cement for exterior cladding on many Garden Grove garage-to-ADU conversions and detached units. Durable, low-maintenance, and engineered for the dry Santa Ana season. See our brands for the full lineup.

Pricing for ADU Company in Garden Grove, CA

Service Typical range in Garden Grove
Galley kitchen opening $15,000 – $28,000
Full kitchen rebuild $30,000 – $65,000
Kitchen inside a new ADU $20,000 – $45,000
Bathroom remodel (main house or ADU) $12,000 – $30,000
Detached site-built ADU (400 – 800 sq ft) $180,000 – $350,000
Prefab ADU (Abodu, Cover) $150,000 – $280,000
Factory-built modular ADU (Boxabl, Mighty Buildings) $120,000 – $250,000
Tuff Shed conversion to livable ADU $80,000 – $150,000

What pushes a Garden Grove job higher than expected is usually the main house: a 100-amp panel that needs swapping for 200 amps, galvanized supply lines that have to be replaced, and shallow lot drainage that needs a new catch basin before the city signs off final inspection. We write fixed-price, line-item quotes before work starts, so those infrastructure costs are on paper from day one, not discovered mid-project.

Neighborhoods We Serve in Garden Grove

Foundry ADU Builders has served Garden Grove since 2018, and we work across the full city footprint, from the alley-loaded blocks near the downtown core to the wide-lot ranch tracts further out. The older 92840 and 92841 neighborhoods are where we see the most garage-to-ADU and alley-access detached unit work. Most of our crews are in Garden Grove at least three days a week, so site visits and estimates are easy to schedule.

  • West Garden Grove (92845)
  • Eastgate (92845)
  • Little Saigon edge neighborhoods (92844)
  • Chapman-West (92840)
  • Garden Park (92843)

Service Area – Cities Near Garden Grove

Foundry ADU Builders works across northern Orange County from our base in Brea. The same Garden Grove-style ranch housing and alley lots extend through several neighboring cities, and we regularly build in Stanton, CA and Westminster, CA. We also cover Midway City, CA and Cypress, CA for homeowners who want a contractor that already knows this housing era and these permit departments. If you’re in one of these cities, your estimate still comes with the same fixed pricing and permit handling.

Serving Garden Grove, CA — Our Local Coverage Area

We’re based in the Garden Grove 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 Garden Grove

Ready to get started? Free estimates · Free written quotes response in Garden Grove
Call (866) 251-7857

What happens when you call

  1. 1
    A real person answersNo phone trees — talk to a local adu pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Garden Grove Customers Say

★★★★★ 4.8 from 4+ reviews

"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."

— Shannon Gallagher

"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."

— Marisol Delgado

"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."

— Brandon Wong

How It Works in Garden Grove

Getting your adu handled is simple and fast.

1

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2

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A background-checked, certified technician arrives in Garden Grove — typically within 30–60 minutes, with parts stocked on the truck.

3

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