Coach House Permits Show 6-Month Processing Reality
A Lincoln Square ADU permit took 183 days to approve, revealing what homeowners really face with coach house projects.
Chicago homeowners dreaming of coach house income should brace for a marathon, not a sprint. A recent permit for a detached garage with ADU on Giddings Street took 183 days to process — over six months from application to approval.
The $120,000 project involves removing an existing 2-car garage and building a 3-car detached garage with coach house above. Even with an architect and expediter involved, the timeline stretched well beyond typical expectations.
Why coach house permits take longer:
Chicago's ADU ordinance requires additional review layers that express permits can't handle. New construction with living space above triggers fire safety requirements, zoning compliance checks, and often aldermanic review.
**Plan for the long haul.** If you're targeting spring construction, submit permits by October. Winter applications face slower review times as the city prioritizes simpler projects.
**Budget beyond the $120K construction cost.** This project carried $3,047 in city fees, plus architect and expediter costs that easily add another $10,000-15,000.
The Chicago Building Department online portal shows this permit is still marked "fee due" despite being issued. Factor post-approval administrative delays into your timeline.
Coach houses offer real rental income potential, but successful projects require patience with Chicago's approval process.