Turn an Unused Garage Into Real Rental Income

In most cases, no. California law (AB 68 and later amendments) prohibits cities and counties from requiring replacement parking when a garage is converted to an ADU, even if the garage was originally required parking for the primary residence. Some jurisdictions still require replacement parking in specific cases — for example, if your property is in a historic district or subject to an HOA restriction. We confirm the exact rules for your address during feasibility.

Yes. If your garage is large enough, we can partition it — a portion becomes the ADU, and a smaller enclosed section remains as storage or a workshop. The ADU must still meet minimum size requirements for a legal dwelling, typically 300 sq ft in most California jurisdictions. Splitting a two-car garage into a 400 sq ft ADU plus a 100 sq ft storage bay is common.

The garage door is removed and the opening is framed in. A standard residential entry door is installed, often with a window or side panel to bring in natural light. In larger conversions, we sometimes install a sliding glass door or French doors to create a more open feel and provide direct access to the yard. The garage door opening is one of the biggest opportunities to improve the light and livability of the unit.

In most cases, the existing garage slab can be reused, which is a major cost savings. The slab is inspected for cracks, moisture issues, and thickness. Where needed, we pour a new topping slab, install a moisture barrier, and add localized footings for structural loads. In the rare case where the existing slab is unusable, we break it out and pour a new one — this adds cost but is uncommon.

Yes, if the garage is large enough and there is room for proper ventilation, appliance placement, and code-required clearances. Full kitchens include a range or cooktop with ventilation hood, refrigerator, sink, and dishwasher. In smaller conversions, a kitchenette is more common — a compact counter with sink, cooktop, and space for a small refrigerator. We will recommend the right configuration based on your garage dimensions.

From the day we start demolition to the day you get the keys: 3–5 months for most garage conversions. Permit approval adds 30–60 days upfront depending on jurisdiction. Total time from first call to move-in is typically 5–7 months. If you have an urgent timeline, we can often compress the schedule by running design and permitting in parallel — ask about expedited options during feasibility.

In most California jurisdictions, no. Fire sprinkler requirements for ADUs are generally tied to whether the primary residence already has sprinklers. If your home has them, the ADU must as well. If your home does not, a garage conversion typically does not trigger a sprinkler requirement — but fire separation between the ADU and the main house is required. We confirm the exact requirements with your local building department during permitting.