Accessory Structures in Blaine, MN (2026)
5 verified accessory structures rules for Blaine, Minnesota, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Blaine allows accessory dwelling units under its own zoning ordinance (Section 33.25 / recodified Section 129-23), but with tight standards: owner-occupancy, shared utilities, three off-street parking spaces, one ADU per lot, and a two-bedroom cap. Attached ADUs need an administrative permit; the City has moved to ban detached units.
Blaine Accessory Dwelling Unit (ADU) Rules
Heavy RestrictionsShed Rules
Blaine regulates sheds as accessory buildings under its zoning ordinance. Sheds over 120 sq ft (or any shed with a slab or footings) need a $75 zoning permit. Setbacks scale with size, a 3-foot separation from other structures is required, and the shed cannot sit in a drainage or utility easement.
Blaine Shed Rules
Some RestrictionsGarage Conversions
Blaine does not have a single 'garage conversion' ordinance, but converting a garage into living space is treated as a building/zoning change. Converting it into a second dwelling falls under the ADU standards (Section 33.25 / 129-23), and converting away parking can run afoul of off-street parking requirements.
Blaine Garage Conversion Rules
Some RestrictionsCarport Rules
Blaine has no standalone carport ordinance; a carport is regulated as an accessory building/structure under the zoning code. Like other accessory buildings it requires a zoning permit when over 120 sq ft or set on a slab/footings, must meet setbacks, and counts toward the combined accessory-building square footage cap.
Blaine Carport Rules
Some RestrictionsTiny Homes
Blaine has no separate 'tiny home' category. A tiny house on a permanent foundation used as a second residence is treated as an accessory dwelling unit under Section 33.25 / 129-23, and a detached backyard tiny home is being banned. Movable tiny houses on wheels are not an allowed permanent residence.
Blaine Tiny Home Rules
Heavy RestrictionsLooking for Anoka County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Blaine city rules.
Accessory Structures in Anoka County →