Saint Paul

Ramsey County portion

ADU Pass helps homeowners in Saint Paul, Ramsey County, Minnesota navigate the permit paperwork for building an accessory dwelling unit. This area covers 19 ZIP codes.

19 ZIP codes

ADU details

ADU legality: allowed-with-restrictions

Statewith-restrictions (Minnesota accessory-dwelling framework) — None enacted. Cities and counties retain full authority over ADU permitting, size limits, owner-occupancy, parking, setbacks, and design standards.
Countyallowed (Ramsey County unincorporated zoning) — Ramsey County permits ADUs in unincorporated areas under state-law-aligned standards. Within Saint Paul city limits the city ordinance plus state law govern.
Cityallowed (City of Saint Paul Municipal / Zoning Code — Accessory Dwelling Units) — City of Saint Paul permits ADUs under the local ordinance aligned with Minnesota statewide framework where applicable. Ramsey County seat; Minnesota state capital; 2022 zoning reform allows ADU in 1-4 unit zones citywide.

Minnesota partially preempts local ADU restrictions; cities retain authority over design and setbacks. Saint Paul permits ADUs subject to local conditions per its zoning ordinance.

Cost scenarios

ScenarioSq ft PermitBuildTotal
minimum 150 $2,400 $42,750 $45,150
600 600 $2,400 $171,000 $173,400
midpoint 575 $2,400 $163,875 $166,275
maximum 1,000 $2,400 $285,000 $287,400
Fee breakdown
Plan review$720
Building permit$1,320
Impact fees$360
Total$2,400

Viability (permitted uses)

  • Long-term rental: yes Long-term rental of ADU generally permitted; landlord-tenant law and any city rental-registration ordinance apply.
  • Short-term rental: with-restrictions STR rules vary by city. Saint Paul regulates STRs separately from ADU permitting; check local STR ordinance and HOA covenants.
  • Office rental: with-restrictions Detached office rental requires home occupation permit or rezoning.
  • Home office: yes Home occupation permitted with restrictions on signage and customer traffic.
  • Studio / workshop: yes Personal artist studio is a permitted accessory use.
  • Agriculture: with-restrictions Limited urban agriculture permitted in residential zones; livestock varies by district.
  • Relative support: yes Family-occupancy ADU explicitly permitted in single-family zones.

Utilities

  • Water: Saint Paul Water Utility · 30d connect · $4,500
  • Sewer: Saint Paul Sewer / Wastewater · 30d connect · $5,500
  • Electric: Saint Paul Electric Utility · 21d connect · $1,800
  • Gas: Saint Paul Gas Utility · 30d connect · $1,500

Property values & taxes

Median value$285,000
Median tax$3,420/yr
Effective rate1.2%

Construction timeline

Detached build22 weeks
Conversion12 weeks
Contractor lead4 months

Realistic total: best 7mo · typical 11mo · worst 16mo

Financing

Insurance impact

Annual premium delta$420
Landlord policyrecommended
Umbrella threshold$1M umbrella when renting

HOA prevalence & preemption

State HOA preemptionno

Minnesota has no HOA-ADU preemption; HOA covenants restricting ADUs are enforceable.

Regulatory overlays (1)

  • historic-district
    Saint Paul historic districts trigger Architectural Review Board / Historic Preservation Commission review for ADUs in historic boundaries.
Technical envelope (climate & building code)

Climate & energy code

IECC climate zone6A
Heating degree days7,200
Cooling degree days600
Frost depth42"
Design snow load50 psf
Wind design speed105 mph
Seismic design cat.A
Annual rainfall38"
Wildfire exposurelow
Energy codeIECC
Version / adopted2021 / 2024

Building code

Base codeIRC
Version year2,021
Adopted2024
Fire sprinklernone
Egress window5.7 sqft min
Min ceiling7 ft
Attic R-valueR-49 min
Wall R-valueR-21 min

Amendments:

  • Amendment
  • Amendment
Ramsey County — county ADU rules and overlays

County ADU ordinance

Ramsey County (state-capital county; ~552,000 residents — the smallest Minnesota county by area but the second-most-populous; encompassing Saint Paul, Maplewood, Roseville, Shoreview, Arden Hills, White Bear Lake partial, North Saint Paul, Saint Anthony partial, Mounds View, New Brighton, Falcon Heights, Lauderdale, Little Canada, Vadnais Heights, North Oaks, Gem Lake, Spring Lake Park partial, and unincorporated White Bear Township and a small portion of Mounds View Township) is fully incorporated — there are no unincorporated parcels under direct county zoning. Ramsey County is the only Minnesota county with NO unincorporated land (every parcel sits within a city). The county therefore does NOT maintain a county zoning ordinance for unincorporated areas. Ramsey County's role is limited to (1) county-level coordination through the Ramsey County Department of Public Works (Plat Commission for plat review under Minn. Stat. § 505.03), (2) administration of the Ramsey County Public Health Department for septic/well permitting in the limited remaining septic-served parcels, and (3) administration of the County Assessor function for the entire county (Ramsey County is the assessing authority for all constituent cities including Saint Paul under Minn. Stat. § 273.061).

County regulatory overlays

Minnesota state — ADU law and programs

State ADU law

Minnesota has NOT enacted a statewide ADU preemption statute as of 2026-04-26. ADU regulation remains a matter of local zoning under each city's and county's general police-power authority (Minn. Stat. ch. 462 for municipal planning, Minn. Stat. ch. 394 for county zoning). Several reform bills are pending in the 94th Legislature (2025-2026 biennium): HF 1987 / SF 2229 (the Minnesota Starter Home Act, chief House author Rep. Kraft), would prohibit municipalities from excluding single-family dwellings, duplexes, ADUs, and townhouses from residential zones; HF 2140 / SF 2231 (the More Homes, Right Places Act) would direct cities to designate higher-density zones along main corridors; HF 1309 / SF 1268 would eliminate parking minimums statewide. As of 2026-04-26 none of these bills has been enacted; HF 1987 cleared the House Housing Finance and Policy Committee in spring 2025 and was referred to House Elections Finance and Government Operations.

State financing programs

Minnesota Housing Finance Agency (Minnesota Housing) does not operate an ADU-specific loan or grant product as of 2026-04-26. ADU construction and rehabilitation can be financed through three general-purpose programs: the Fix Up Loan (statewide home-improvement loan up to 20-year term, secured or unsecured, no income limit on the standard track), the Rehabilitation Loan Program / Emergency & Accessibility Loan Program (RLP/ELP) for low-income owner-occupants (max $37,500, forgivable if owner remains for the loan term, 15 years for real property), and the Start Up first-time-homebuyer mortgage program with down-payment-assistance overlays. None of these is ADU-specific; an ADU project must qualify under each program's general eligibility (primary residence, income caps, etc.). Tribal nations and several counties operate their own rehab loan funds (e.g., St. Paul Homeowner Rehab Loans, Anoka County Rehabilitation Loan Program, Olmsted County Housing Rehabilitation).

State housing programs

Minnesota does not operate a statewide pre-approved ADU plan catalog, an impact-fee waiver statute, or a streamlined-review mandate for ADUs. The 2023 housing omnibus (H.F. 2335 / S.F. 2566, signed 2023-05-25) appropriated approximately $1 billion across Minnesota Housing programs but did not include ADU-specific incentives. The Met Council's housing-action funding for the Twin Cities seven-county region encourages ADU-permissive zoning as part of the Livable Communities Act score, indirectly rewarding cities that adopt ADU ordinances. Pending 2025-2026 legislation (HF 1987 Starter Home Act, HF 2140 More Homes Right Places Act) would establish state preemption-style mandates if enacted but have not yet passed.

Federal (United States) — ADU-relevant rules and programs

Federal ADU law

The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.

Federal financing programs

Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.

Federal tax credits

There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.

Federal housing programs

HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.

ZIP Codes

  • 55101
  • 55102
  • 55103
  • 55104
  • 55105
  • 55106
  • 55107
  • 55108
  • 55109
  • 55110
  • 55112
  • 55113
  • 55114
  • 55116
  • 55117
  • 55119
  • 55126
  • 55127
  • 55130

Post Office

  • 101 5th St E Ste 150, 55101
  • 1056 Highway 96 E, 55127
  • 1175 Gershwin Ave N, 55128
  • 1425 Minnehaha Ave E, 55106
  • 1430 Concordia Ave, 55104
  • 1686 Gervais Ave, 55109
  • 1715 7th St W, 55116
  • 200 5th Ave NW, 55112
  • 2000 County Road B2 W, 55113
  • 2223 5th St, 55110
  • 2309 Como Ave, 55108
  • 2334 University Ave W, 55114
  • 2523 7th Ave E, 55109
  • 292 Eva St, 55107
  • 40 Arlington Ave E, 55117
  • 4390 Mcmenemy St, 55127
  • 525 Main St, 55112
  • 886 Arcade St, 55106

Locale Names