Blaine, MN Building Safety: Door Locking Hardware (2026)

Section 18-289(g) states plainly that no owner shall occupy or let to another for occupancy any dwelling or dwelling unit unless all exterior doors are equipped with safe, functioning locking devices. That rule sits inside article IV, the Residential Maintenance Code, but section 18-232 limits how far the city can push most of that article against a homeowner living in their own house: it names section 18-290 as the only section of the article the city can enforce against owner-occupied homes. That leaves the door-lock rule in section 18-289(g) fully enforceable against rental dwellings, licensed under article V, and other non-owner-occupied structures, where the city inspector already checks compliance during licensing inspections under section 18-260.

A missing exterior door is treated even more seriously: section 18-290(9)(b) lists 'missing exterior doors or broken windows' among the immediate hazards to health, safety, and welfare that can trigger faster enforcement under section 18-262(c) and, in severe cases, a declaration that the unit is unfit for human habitation under section 18-262(d). Owners who receive a compliance order over missing or non-functioning door hardware get a written notice under section 18-262(a) describing the defect and setting a reasonable deadline to install compliant locking devices, served on the owner or agent personally, by registered mail, or by posting at the property if those methods fail.