Before You Build in Blaine, MN: Permit & Rule Checklist (2026)

Blaine's Zoning Ordinance (BZO 33.08) limits fences to 4 feet in front yards and 6 feet in side and rear yards. A front corner side yard fence may reach 6 feet only with a 1-foot setback. Rear yards fronting a public right-of-way are limited to 4 feet at the line or 6 feet set back 1 foot.

Blaine requires a permit to build a new yard fence or substantially alter an existing one (BZO 33.08). Seasonal snow or garden fences are exempt. Fences up to 7 feet need a zoning/engineering permit; fences over 7 feet require a building permit and a Conditional Use Permit from the Planning Department. Owners must locate property corner markers first.

Blaine requires that fence post framework sit within the owner's own property line, with the finished (good) side facing the street or adjacent property (BZO 33.08). The City does not adjudicate boundary disputes. Minnesota law (Statutes 561.02) treats a fence maliciously erected to annoy a neighbor as a private nuisance.

In Blaine, a retaining wall not over 4 feet (measured from the bottom of the footing to the top of the wall) does not require a permit unless it supports a surcharge. Walls over 4 feet, or any wall supporting a surcharge such as a building, pool, driveway, or parking area, require a permit. This follows Minnesota Rules 1300.0120.

Blaine permits standard fence materials and requires the finished side (lumber, pickets) to face the street or adjacent property, with workmanlike construction and reasonable upkeep (BZO 33.08). The city code reviewed does not enumerate approved materials, and some developments and HOAs add material rules or prohibit fences.

Blaine requires a building permit for almost every pool. The only exception is a prefabricated, entirely above-ground residential pool that does not exceed both 5,000 gallons and 24 inches of depth. Even exempt pools must still meet the city's barrier requirements before use.

Blaine requires every outdoor residential pool to be enclosed by a non-climbable barrier at least 48 inches (4 feet) high, with no more than a 2-inch gap at the bottom. The barrier must be substantial enough to resist a 200-pound lateral load and must be installed when the pool is installed.

Blaine's pool safety rules center on keeping pools inaccessible when not in use through a compliant non-climbable barrier, completing all required safety inspections, and following Minnesota building and electrical code. The barrier must be in place before the pool is used.

Small prefabricated above-ground pools under both 5,000 gallons and 24 inches deep are exempt from Blaine's building permit, but all other above-ground pools need a permit. Either way, the city requires a compliant non-climbable barrier at least 48 inches high.

Blaine treats hot tubs and spas as pools, but a hot tub or spa equipped with a lockable safety cover is exempt from the barrier/fencing requirement. The cover must be kept locked whenever the tub is not in use. Electrical work follows Minnesota state code.

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 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 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 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 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 allows backyard recreational fires without a fire department permit if the fire is in a manufactured pit/ring or a pit no larger than three feet in diameter, flames stay under 36 inches, and it sits at least 25 feet from structures (10 feet for a manufactured pit with screen and cover). Only natural firewood may be burned.

Open burning of leaves, yard waste, lumber, pallets, scrap wood, cardboard, paper, and garbage is prohibited in Blaine. Burning brush and tree trimmings is allowed only with an open pile burn permit from the Fire Inspection Division. Recreational fires of natural firewood are handled separately.

The City of Blaine maintains boulevard trees in the public right-of-way, typically within 15 feet of the back of curb, pruning on a seven-year rotation at no cost to homeowners. Property owners are responsible for general upkeep of their boulevard. The city advises against pruning elm, oak, or honey locust from mid-April to mid-August because it greatly increases the risk of disease. Routine pruning should occur during dormant winter months.

Blaine does not require a permit to remove a healthy tree from established private residential property, but boulevard/right-of-way trees are city-maintained and should not be cut by residents. Diseased trees declared a public nuisance under the Shade Tree Management ordinance (Chapter 90, Article III, Sec. 90-57) — such as Dutch elm, oak wilt, and emerald ash borer infestations — must be removed or abated. New construction triggers separate tree preservation requirements.

Blaine enforces year-round odd/even lawn sprinkling: even-numbered addresses water on even days, odd-numbered addresses on odd days. From May 15 through September 15 no sprinkling is allowed between 10 a.m. and 6 p.m. Hand watering with a can or hose, private wells, city athletic fields, and newly installed sod/landscaping (for 30 days) are exempt. Violations carry escalating fines.