From Empty Garage to Rental Goldmine: One Homeowner’s ADU Journey
“From Empty Garage to Rental Goldmine: One Homeowner's ADU Journey." - Lorena Gomez
When John Nguyen bought his Highland Park home in 2011, he didn’t give much thought to the detached two-car garage in back. Like many homeowners, he used it to store holiday decorations, old furniture, and broken appliances. But in 2022, with rising costs and stagnant income, John started seeing that garage as something more.
The Decision to Convert
After attending a neighborhood workshop about ADUs, John got curious. He ran the numbers: With local rents averaging $2,000 for studios, a conversion could pay off in just a few years. So he decided to make a move.
The Rollercoaster Begins
John hired a local ADU design-build firm. The plan was simple: convert the 400-square-foot garage into a sleek studio apartment with high ceilings and a private patio. Permitting, however, dragged on for 5 months. Then halfway through framing, his contractor quit — citing staff shortages.
Rather than abandon the project, John rolled up his sleeves. He hired subs directly, learned to read plan sets, and personally coordinated inspections. He even managed to upgrade the sewer connection after watching YouTube videos explaining the process.
Smart Design Choices
- Vaulted ceilings and skylights to make the space feel larger
- A large sliding glass door opening onto a landscaped patio
- Ductless HVAC system for energy efficiency and minimal footprint
The Final Product
It took 11 months and $145,000, but the ADU turned out better than expected. Clean lines, light-filled interiors, and a vibe that felt modern and comfortable.
Now the Numbers Tell the Story
Rented at $2,300/month, the unit now covers nearly half of John’s mortgage. Better yet, his home value has increased by over $180,000 per the most recent appraisal.
Advice from Experience
“Don’t assume it’ll be smooth,” John says. “But don’t be afraid of the process. Stay engaged, show up, ask questions. It’s not easy money — but it’s real money.”
For many homeowners with unused space, John’s story is a roadmap: smart planning, determination, and a little risk can transform a neglected garage into a true asset.
