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Compare cost, timeline, and ROI between converting your existing garage and building a brand-new detached ADU.

Cost & timeline

A garage conversion in Los Angeles costs roughly half as much as new construction and finishes in 3–4 months. A new detached ADU averages 6–9 months including permitting.

Resale and rental value

New detached ADUs generally appraise higher and command 15–25% more in monthly rent than converted garages of the same square footage, thanks to better natural light and modern layouts.

Which to choose

If you already have a sound, dry garage and want quick rental income, conversion wins. If your lot has the room and you want maximum long-term value, new construction is the better investment.

Ready to start your ADU project?

Get a free quote from EZ ADU Builders CA — Los Angeles' trusted ADU specialists.

Call 213-816-6012

Keep reading

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Request your free ADU consultation

Tell us about your lot and goals. We'll respond within one business day with next steps and a rough budget range.

  • 213-816-6012
  • Mon–Sat 8:00 AM – 7:00 PM
  • 527 W 7th St, Los Angeles, CA 90014

Or call 213-816-6012