Arlington Heights, IL Accessory Structures: Tiny Homes (2026)

The Village of Arlington Heights zoning ordinance does not specifically address tiny homes but effectively prohibits them through minimum dwelling size requirements and restrictions on accessory dwelling units. Single-family homes in Arlington Heights must meet minimum floor area requirements established in the zoning code, which vary by district but generally require at least 1,000 square feet for the principal dwelling. Tiny homes on wheels are classified as recreational vehicles, not permanent dwellings, and cannot be used as primary residences on residential lots. Parking a tiny home on wheels in a driveway or yard for use as a dwelling would violate both zoning and building codes. A tiny home built on a permanent foundation would need to comply with all applicable building codes, including the International Residential Code as adopted by Illinois, and meet the minimum square footage requirements for the zoning district. Because Arlington Heights does not broadly permit ADUs, placing a tiny home as a secondary dwelling on a lot with an existing house is not allowed. The Village has not adopted any tiny home-specific ordinances or pilot programs.