Garage-to-ADU Conversions in Clackamas County
Convert your garage into a legal, rental-ready ADU. Gencon handles garage-to-ADU conversions across Clackamas County: utilities, egress, and county permitting from start to finish.
Free estimate: 503-825-0123Converting an existing garage is the fastest, most affordable path to a legal ADU. You already have the foundation, walls, and roof. Gencon turns garages into rental-ready, code-compliant ADUs across Clackamas County.
Why a garage conversion is the budget path
Because the structure already exists, a conversion skips the biggest costs of a ground-up build. You're mainly adding what makes a garage livable: insulation, egress, plumbing, electrical, heating, and finishes. That's why conversions typically come in well under the cost of a detached unit.
What's required to make it legal
- Insulation and weatherproofing brought up to residential code
- Egress windows for safe exit from sleeping areas
- Plumbing for a kitchen and bathroom, tied into the home's system
- Electrical and a permanent heat source
- Adequate ceiling height and a sound existing slab and structure
- Any required parking replacement, depending on local rules
Attached vs. detached garages
Both convert well. A detached garage becomes, in effect, a detached ADU with a head start on structure. An attached garage conversion is often simpler for running utilities from the house but needs careful fire-separation and entry planning. We'll assess which you have and what it takes.
Frequently asked questions
- Will I lose my garage and parking?
- You'll convert the garage's interior to living space, so yes, that bay is no longer for cars. Some jurisdictions require you to replace the off-street parking elsewhere on the lot; we confirm whether that applies to your address.
- Can any garage be converted?
- Most can, but the slab, structure, and ceiling height have to be adequate. We inspect the existing garage first and tell you plainly whether it's a good candidate before you commit.
- How much cheaper is a conversion than a detached ADU?
- It varies with the garage's condition and finishes, but reusing the existing foundation, walls, and roof typically makes a conversion meaningfully less expensive than building a detached unit from scratch.
Garage ADU Conversions is part of Gencon's adu construction work across Clackamas County. Explore related services:
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