Maui County, HI Home Business: Signage Rules (2026)

040, spells out nine conditions a home-based enterprise must meet to qualify as a permitted "home occupation" accessory use anywhere in the county, and condition five is absolute: no sign, display, or change in the exterior appearance of the dwelling to advertise the business is allowed, so a home occupation cannot post so much as a small nameplate, awning graphic, or window sign visible from the street. The same section restricts a qualifying home occupation to no more than 25 percent of the dwelling unit's floor area, bars anyone other than a family member residing on the premises from being employed, and prohibits group instruction or sales meetings on-site.

Deliveries and pickups are limited to vehicles the residents themselves own, capped at vans seating nine passengers or trucks carrying up to three-quarter ton, closing off large commercial delivery use. Clients and customers generally cannot visit the property, with a narrow carve-out for one-on-one tutoring capped at eight students per day. Certain trades never qualify as a home occupation regardless of scale, including auto and body-fender repair and the boarding, training, or raising of dogs, cats, birds, or horses. The Department of Planning administers this title, and a business owner who exceeds these limits, including the no-sign rule, risks losing the home occupation's accessory-use status and being cited for an unpermitted commercial use in a residential zone. 020 and does not extend to home occupations sited anywhere else in the county.