Tudor style garage conversion ADU in a historic neighborhood: garage conversion by J.O. Construction in Chino, CA

Garage Conversion ADU in Chino, CA

A garage conversion turns space you already have into a permitted living unit. J.O. Construction converts garages into ADUs for owners around Chino. Call (951) 436-6568 to have yours looked at.

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Finished ADU kitchen with gray cabinets and quartz counters
New kitchen
ADU bathroom with a glass corner shower and black fixtures
New bathroom
White stucco ADU with a wood front door
Separate entry

Recent garage conversion projects

Real jobs, newest first. Dates are the month we posted each stage on our Instagram.

What is included

  • The garage door opening framed in
  • New windows
  • Insulation
  • Plumbing for a kitchen and a bath
  • Electrical and HVAC
  • Moisture barrier and slab leveling where needed
  • Drywall and finishes

The job, in three frames

How the job runs with J.O. Construction, in the order it happens.

  1. Inside an emptied two-car garage, the garage door opening framed in with new wood studs and a window header

    Step 1: Frame in the door

    The garage door comes out and the opening is framed in with a wall and a window.

  2. Garage conversion in progress: new drain lines cut into the concrete slab, electrical boxes on studs, insulation batts in the walls

    Step 2: Slab and rough trades

    Drain lines cut into the slab, electrical and insulation in the walls, then the inspection.

  3. Finished garage conversion studio with a new window where the garage door used to be, a kitchenette and vinyl plank floor

    Step 3: Finish the unit

    Drywall, flooring, kitchen and bath, and a separate entry.

What a conversion includes

Framing in the garage door opening, new windows, insulation, plumbing for a kitchen and bath, electrical, HVAC, drywall and finishes. The slab often needs a moisture barrier and leveling.

Garage conversions we have done near Chino

In Santa Ana we converted a garage in a historic neighborhood, coordinating with the city's historic department so the Tudor exterior matched the house. Another is underway in Pasadena.

What Chino owners ask first: parking

State law says a city cannot require you to replace the parking when a garage becomes an ADU, and Chino's code says the same. That removes the biggest worry most owners have. The rest of the rules are on our Chino ADU rules page.

Is this the right call for your project?

Call us for this when

  • You have a garage full of boxes and want a permitted unit
  • You want the fastest way to add a unit, using the slab, walls and roof you have
  • You worry about parking: state law says the city cannot make you replace it

Pick something else when

After the final inspection: keeping it in shape

  1. Keep the conversion permit

    An unpermitted conversion causes trouble at sale. Yours is finaled; keep the card.

  2. Watch the old slab edge

    Where the garage door used to sit is the low point. Keep landscape water off that wall.

  3. Run the bath fan

    A converted garage is a tight room. The fan after every shower keeps moisture off the new walls.

Recent work from our crews

ADU kitchen with white oak cabinets, quartz counters and stainless appliances
ADU kitchen, Riverside
Arched wrought-iron entry on a new Spanish-style custom home
Custom home, Whittier
Pool house ADU with sliding doors beside a backyard pool
Pool house ADU, Fontana
New room in an addition with black-framed windows and wood floors
Home addition, Fontana

More on our Instagram, where we post each stage as it happens.

Part of our ADU builder work. Related: detached ADU, above-garage ADU, multi-family ADU. Back to the J.O. Construction home page.

What clients sayReal words from Google, unedited.
P
Patrice Peterson
★★★★★9 months ago

We hired Jimmy for a garage to ADU conversion project. The project was completed quickly, with diligent work from Jimmy's team, resulting in a finished product that exceeded our expectations!

C
Coe Michaelson
★★★★★3 years ago

We hired Jimmy to convert an 1100 sf garage to a 2 bed, 2 bath casita (ADU). He provided everything, from design to the final finishes. … While we waited quite some time for the city, Jimmy and his crews moved quickly with things once we had the green light.

Garage Conversion questions from Chino owners

Is a garage conversion cheaper than building a new ADU?

A garage conversion usually costs less than a new detached ADU of the same size, because the foundation, walls and roof already exist.

Do I need a permit to convert my garage in Chino?

Yes. A garage conversion in Chino needs a building permit. An unpermitted conversion can cause trouble when you sell or rent the home.

How long does a garage conversion take?

A garage conversion usually takes less time than a new unit. One client wrote that their garage-to-ADU project was completed quickly.

Garage full of boxes? Make it a unit.

We will look at the garage and tell you what it takes.

Mon to Fri, 7 AM to 5 PM

Large custom kitchen with a wood ceiling and long island, built by J.O. Construction
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Thinking about a project? Let's talk.

Answer a few quick questions and Jimmy will call you back to talk it through. No pressure and no obligation.

  • Jimmy runs your job from the first call to the final inspection
  • Licensed and bonded, CA #1057456
  • Design, permits and construction under one roof
★★★★★ 4.8 on Google · 21 reviews

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Mon to Fri, 7 AM to 5 PM

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