- hgarcia@hgdesignbuild.com
- (323) 317-4828
Our Services
Garage Conversion & JADU Construction
Turn Underutilized Storage Into High-Yield Living Space
Expand Your Living Space, Enhance Your Property Value
Transforming an attached or detached garage into an Accessory Dwelling Unit (ADU) or Junior ADU (JADU) is one of the smartest, fastest, and most cost-effective ways to add premium livable square footage to your Southern California property.
Instead of sacrificing your yard or breaking ground on an entirely new foundation, a garage conversion leverages your home’s existing structural footprint. Whether your goal is to generate reliable monthly rental income, design a private suite for multi-generational family living, or build a high-end detached home office, our team specializes in turning dark, underutilized concrete spaces into bright, modern, and fully compliant luxury residences.
Understanding the Difference: Garage Conversion ADU vs. JADU
Depending on your structural goals, budget, and how you plan to use the space, your project will fall into one of two categories under California law:
| Feature | Full Garage ADU (Detached or Attached) | Junior ADU (JADU) (Attached Only) |
| Max Size | Typically up to 1,200 sq. ft. (can expand past garage footprint). | Maximum of 500 sq. ft. (must stay within existing walls). |
| Kitchen | Requires a full kitchen (stove, oven, sink, refrigerator). | Requires an efficiency kitchen (counter space, sink, plug-in appliances). |
| Bathroom | Must have its own private, full bathroom. | Can have a private bathroom or share one with the main house. |
| Owner Occupancy | Not required by state law (you can rent out both units). | The owner must live in either the main house or the JADU. |
| Parking Replacement | No replacement parking required if within 1/2 mile of public transit. | No replacement parking required under state law. |
The Advantages of a Garage Conversion
Significant Budget Savings: By utilizing the existing foundation, framing, and roof structure, you save substantially on raw framing, structural engineering, and concrete costs compared to building from scratch.
Accelerated Permitting Timelines: Because the exterior building envelope is already established, local Southern California building departments can often review and approve conversion plans much faster than ground-up builds.
Preservation of Outdoor Space: You won’t have to sacrifice your pool, patio, or backyard landscaping. The conversion takes place entirely within an area your property has already dedicated to structural use.
High ROI and Passive Income: Turn a space used for storing old boxes into a premium asset that commands top-tier rental rates in Southern California’s high-demand housing market.