Saint Paul, MN Zoning

Overview

Code type

euclidean

Naming convention

letter-plus-number (R/R1-R4 lowest-to-highest density single-family; RT1-RT2 two-family/townhouse; RM1-RM3 multi-family; OS office-service; B1-B5 business; BC community business; T1-T4 Traditional Neighborhood; IT industrial-transitional; I1-I3 industrial). Number = intensity index (higher = denser/more intense), NOT lot size. Naming is use-type-index per naming-conventions decoder.

Saint Paul retains a conventional Euclidean district structure (use-based districts with dimensional tables) but has been materially reformed on two fronts since 2021: (1) 1-4 unit reform legalizes duplexes, triplexes, and quadplexes by-right across all residential districts R/R1-R4/RT/RM — pre-empting and exceeding the 2023 Minnesota state mandate; (2) parking minimums eliminated citywide 2022. Result is Euclidean form with missing-middle flexibility overlaid at the use layer. T1-T4 Traditional Neighborhood districts are form-influenced mixed-use but remain part of the Euclidean framework — not a separate transect.

Worth knowing

Saint Paul's 2021 Neighborhood Conservation / 1-4 unit reform (Ord. 21-48, effective 2023-01-01) legalizes 1, 2, 3, and 4 dwelling units by-right in ALL residential districts — predating and exceeding the 2023 Minnesota state mandate. Minneapolis's 2019 end-of-SF-zoning (3 units) was first; Saint Paul's 4-unit reform is peer-leading nationally. [confirmed — Ord. 21-48]
Saint Paul eliminated ALL minimum off-street parking requirements citywide effective 2022 (Ord. 21-20, adopted 2021-06-23). Saint Paul is among the first major US cities to do so citywide (not just in downtown or transit zones). Only parking maxima and bicycle parking requirements remain. [confirmed — Ord. 21-20]
Mississippi River Corridor Critical Area (MRCCA, MN Stat. §116G + MR 6106) mandates a layered overlay (RC1-RC4) on ~26 miles of river frontage — the most extensive MRCCA jurisdiction of the 25 covered localities. Saint Paul's bluff topography (Highland, Crocus Hill-Summit, Dayton's Bluff, Mounds Park) and the West Side flats create dramatic regulatory stacking between RCOD, FPD, and base zones. [confirmed]

+ 8 more in Quirks & notes

Districts

res_sf 6com 5mu 4ind 4res_mf 3res_th 1off 1cbd 1

Code	Name	Category	Min lot	Height	Coverage	FAR	Du/ac	Setbacks F/S/R
R	One-Family Residential	res_sf	9,000 sf	30 ft	0.3	—	—	25 / 6 / 25
R1	One-Family Residential	res_sf	7,200 sf	30 ft	0.3	—	—	25 / 6 / 25
R2	One-Family Residential	res_sf	6,000 sf	30 ft	0.3	—	—	25 / 5 / 25
R3	One-Family Residential	res_sf	5,000 sf	30 ft	0.35	—	—	25 / 5 / 25
R4	One-Family Residential (smallest-lot tier)	res_sf	4,200 sf	30 ft	0.35	—	—	25 / 4 / 25
RT1	Two-Family Residential	res_sf	5,000 sf	35 ft	0.35	—	—	25 / 5 / 25
RT2	Townhouse Residential	res_th	2,500 sf	40 ft	0.5	—	—	20 / 0 / 25
RM1	Multiple-Family Residential (low-intensity)	res_mf	5,000 sf	35 ft	0.4	—	—^[1]	25 / 5 / 25
RM2	Multiple-Family Residential (medium-intensity)	res_mf	5,000 sf	50 ft	0.5	—	—^[2]	20 / 5 / 25
RM3	Multiple-Family Residential (high-intensity)	res_mf	5,000 sf	75 ft	0.6	—	—^[3]	20 / 5 / 25
OS	Office-Service	off	5,000 sf	35 ft	0.5	1	—	20 / 5 / 25
B1	Local Business	com	—^[4]	35 ft	0.7	1.5	—	0 / 0 / 25
B2	Community Business	com	—^[5]	50 ft	0.8	2	—	0 / 0 / 25
B3	General Business	com	—^[6]	65 ft	0.85	3	—	0 / 0 / 20
B4	Central Business	com	—^[7]	—^[8]	1	6	—	0 / 0 / 0
B5	Central Business Service	cbd	—^[9]	—^[10]	1	—^[11]	—	0 / 0 / 0
BC	Community Business (Converted)	com	—^[12]	50 ft	0.8	2	—	0 / 0 / 20
T1	Traditional Neighborhood (low)	mu	—^[13]	35 ft	0.6	1.5	—	10 / 0 / 20
T2	Traditional Neighborhood (medium)	mu	—^[14]	45 ft	0.75	2.5	—	5 / 0 / 20
T3	Traditional Neighborhood (corridor)	mu	—^[15]	60 ft	0.85	3.5	—	0 / 0 / 15
T4	Traditional Neighborhood (node/transit)	mu	—^[16]	75 ft	0.95	5	—	0 / 0 / 10
IT	Industrial Transitional	ind	—^[17]	45 ft	0.8	2	—	10 / 5 / 20
I1	Light Industrial	ind	—^[18]	45 ft	0.85	2	—	10 / 5 / 20
I2	General Industrial	ind	—^[19]	65 ft	0.9	3	—	10 / 5 / 20
I3	Heavy Industrial	ind	—^[20]	—^[21]	0.95	3	—	25 / 10 / 25

Confidence: confirmed partial under review not found

Overlays

RCOD

Mississippi River Corridor Critical Area Overlay

ENV

Title VIII Zoning Code Ch. 68 (River Corridor Overlay Districts RC1-RC4); implements MN Stat. §116G (Critical Areas Act 1973) and MN Rules Chapter 6106 (MRCCA rules, 2017) · §68 (River Corridor Overlay Districts RC1-RC4)

HPSD

Heritage Preservation Overlay / Historic Preservation Site District

Title VIII Zoning Code Ch. 73 (Heritage Preservation Commission) in coordination with Ch. 60 zoning definitions; enabled by MN Stat. §471.193 (Municipal Heritage Preservation) · §73 (Heritage Preservation); cross-reference §60 definitions

GASR

Grand Avenue Special District / Special Regulations

COR

Title VIII Zoning Code Ch. 67 (Overlay Districts) — Grand Avenue Special District Sign Plan and use/dimensional regulations · §67 (Overlay Districts — Grand Avenue Special District)

LRSAS

Light Rail Station Area Standards Overlay

TOD

Title VIII Zoning Code Ch. 66 §66.300-series (Light Rail Station Area standards) and Ch. 67 Overlay Districts · §66.300-series (Light Rail Station Area standards)

FPD

Floodplain Overlay

Title VIII Zoning Code Ch. 72 (Floodplain Management) implementing National Flood Insurance Program + MN Stat. §103F (Floodplain Management Act) · §72 (Floodplain Management)

Downtown Zoning District (Downtown Business)

Title VIII Zoning Code §66.400-series (B5 Central Business Service District) and Ch. 66 Downtown-specific dimensional schedule · §66.400 (B5 Central Business Service District)

TND

Traditional Neighborhood Districts (T1-T4)

COR

Title VIII Zoning Code §66.330 (T1-T4 Traditional Neighborhood Districts) · §66.330 (Traditional Neighborhood Districts T1-T4)

AAO

Airport Overlay (Part 77 Holman Field and MSP)

AIR

Title VIII Zoning Code airport height/hazard provisions; implements FAA 14 CFR Part 77 for Saint Paul Downtown Airport (Holman Field, STP, city-owned) and Minneapolis-Saint Paul International (MSP) approach surfaces over southwestern Saint Paul · Title VIII airport provisions; 14 CFR Part 77; MN Stat. §360.061

State preemptions

MN-SF4-HF1-Missing-Middleapplies

Qualifying condition

Saint Paul population = 303,176 (Census PEP 2023 vintage), exceeds the 5,000-resident threshold for the duplex/triplex by-right provision. Saint Paul is a member city of the Metropolitan Council (7-county Twin Cities metro) per MN Stat. §473.121, triggering the quadplex (4-unit) by-right provision applicable to Metro Council area cities. Saint Paul's 2021 Neighborhood Conservation / 1-4 unit reform (Ord. 21-48, effective 2023-01-01) already legalizes 1-4 units by-right in all residential districts citywide — local ordinance pre-empts and equals or exceeds state mandate floor.

MN-Stat-116G-MRCCAapplies

Qualifying condition

Saint Paul has approximately 26 miles of Mississippi River frontage within the MRCCA boundary as designated by MN DNR per MN Stat. §116G.06. Saint Paul is one of 25 local units of government within MRCCA per MN DNR roster (updated following 2017 MR 6106 rulemaking). Saint Paul's Title VIII Ch. 68 River Corridor Overlay (RC1-RC4 sub-districts) implements MR 6106 tiered standards (CA-SR, CA-ROS, CA-RTC, CA-UM).

MN-Stat-462-Enablingapplies

Qualifying condition

Saint Paul is a statutory/home-rule city of the first class (MN Stat. §410, Charter City) exercising zoning authority under MN Stat. §462.357 general zoning enabling. Saint Paul population 303,176 confirms first-class city status (>100,000).

MN-Metropolitan-Council-Housingapplies

Qualifying condition

Saint Paul is a Metropolitan Council member city per MN Stat. §473.121. Saint Paul's affordable-housing need number in the current decade is 5,381 units (Metropolitan Council 2021-2030 allocation) across affordability tiers (30% AMI, 50% AMI, 80% AMI). 2040 Comp Plan must demonstrate capacity to meet the allocation through zoning and implementation tools.

MN-Stat-103F-Floodplainapplies

Qualifying condition

Saint Paul participates in the National Flood Insurance Program and maintains a local floodplain management ordinance (Title VIII Ch. 72). FEMA FIRMs for Ramsey County cover Mississippi River frontage, Phalen Creek, Battle Creek, and Trout Brook corridors. MN DNR floodplain program oversight applies.

Adopted building codes

Statewide; extensive amendments

IBC

2018

IRC

2018

NEC

2023

IFC

2018

IECC (Residential)

MN-specific

IECC (Commercial)

MN-specific

Quirks & notes

Saint Paul's 2021 Neighborhood Conservation / 1-4 unit reform (Ord. 21-48, effective 2023-01-01) legalizes 1, 2, 3, and 4 dwelling units by-right in ALL residential districts — predating and exceeding the 2023 Minnesota state mandate. Minneapolis's 2019 end-of-SF-zoning (3 units) was first; Saint Paul's 4-unit reform is peer-leading nationally. [confirmed — Ord. 21-48]
Saint Paul eliminated ALL minimum off-street parking requirements citywide effective 2022 (Ord. 21-20, adopted 2021-06-23). Saint Paul is among the first major US cities to do so citywide (not just in downtown or transit zones). Only parking maxima and bicycle parking requirements remain. [confirmed — Ord. 21-20]
Mississippi River Corridor Critical Area (MRCCA, MN Stat. §116G + MR 6106) mandates a layered overlay (RC1-RC4) on ~26 miles of river frontage — the most extensive MRCCA jurisdiction of the 25 covered localities. Saint Paul's bluff topography (Highland, Crocus Hill-Summit, Dayton's Bluff, Mounds Park) and the West Side flats create dramatic regulatory stacking between RCOD, FPD, and base zones. [confirmed]
Green Line LRT (opened 2014) runs ~11 miles along University Avenue from Union Depot (downtown) to the Minneapolis border. LRSAS overlay applies within ½ mile of each Saint Paul station. Combined with T3/T4 Traditional Neighborhood base districts, creates Saint Paul's densest mixed-use zoning envelope along University Avenue. [confirmed]
Saint Paul has the highest concentration of locally-designated Heritage Preservation Districts per capita among large Midwestern cities: Summit Avenue West (longest intact Victorian residential boulevard in US), Historic Hill, Dayton's Bluff, Irvine Park, Lowertown, Uppertown, Summit Hill, Woodland Park, Summit Overlook, among others. HPSD stacking creates effective downzoning in multiple corridors. [confirmed]
Grand Avenue Special District (Ch. 67) implements the 2007-2009 Grand Avenue Planning Task Force recommendations — dedicated sign plan, storefront-width caps, and parking-location restrictions preserve neighborhood commercial character on a unique high-intensity pedestrian corridor. No direct analog in Minneapolis. [confirmed]
Saint Paul's District Council system (17 community-based neighborhood councils) has quasi-formal role in zoning review and HP designations — codified in Ch. 107 City Charter and referenced throughout Title VIII procedural sections. Unusual governance structure for US cities. [confirmed]
Traditional Neighborhood District family (T1-T4) replaces the former B1/B2 functional role in many corridors but is governed under Ch. 66 — naming convention differs from Minneapolis (which uses UN/RM/CM/etc. district family under 2040 rewrite). T3/T4 are the workhorses of Saint Paul corridor redevelopment. [confirmed]
Saint Paul Downtown Airport (Holman Field, STP) is a city-owned general aviation airport on the West Side flats directly adjacent to downtown — FAA Part 77 approach surfaces cut through downtown B5 parcels, creating an effective height ceiling that is neither in Title VIII nor in the downtown dimensional schedule but governs tall buildings. Classified as federal overlay (FM-P). [confirmed]
Two airport zoning layers apply: STP (Holman Field) and MSP (international) — MSP approach surfaces cover Saint Paul's southwestern edge (Highland Park). Joint Airport Zoning Ordinance (MN Stat. §360.061) administered by MAC. [confirmed]
library.municode.com/mn/st._paul is the primary authoritative Municode hosting but is a JS-rendered SPA — scripted WebFetch returns scaffold only. Ch. 66 dimensional tables, Ch. 67 overlay parameters, Ch. 68 RCOD tiers, Ch. 72 floodplain freeboard, and Ch. 73 HPC guidelines all require browser-based retrieval or PDF supplement. This is the primary retrieval blocker flagged for v2.1 refresh. [retrieval blocker]

Formulas

Definitions

height: Grade to highest point of structure; Ch. 66 sets district-specific caps.
lot_coverage: Building footprint / lot area; Ch. 66 Table 66.231 typical.
far: Gross floor area / lot area; applies primarily in B, BC, T, and I districts per Ch. 66.
du_ac: Residential density expressed as units per acre or minimum lot area per unit per Ch. 66.
setback_front: Front property line to nearest building face; front setback sometimes tied to block-face average.
setback_side: Interior side property line to nearest building face.
setback_rear: Rear property line to nearest building face.
parking: Saint Paul eliminated all minimum off-street parking requirements citywide effective 2022 per Ord. 21-20. Only maximums and bicycle-parking requirements remain. §63.200 (amended).
river_corridor: Mississippi River Corridor Critical Area (RCOD) overlay implements MN state mandate (MN Stat. §116G + MR 6106) — enhanced setbacks, impervious-surface caps, and vegetation standards within the designated corridor. Saint Paul's RC1-RC4 sub-districts vary by proximity and topography.
missing_middle_rights: 2021 1-4 unit reform (Ord. 21-48) legalizes 1, 2, 3, and 4 dwelling units as principal uses in ALL residential districts (R, R1-R4, RT1-RT2, RM1-RM3). Minimum lot sizes per unit apply but no bar on unit count up to 4 within existing envelope.

Capacity calculations

max_footprint_sf: lot_area_sf * lot_coverage
max_gfa_sf: lot_area_sf * far
buildable_width_ft: lot_width_ft - setback_side_ft * 2
buildable_depth_ft: lot_depth_ft - setback_front_ft - setback_rear_ft
max_stories_approx: max_height_ft / 10
units_up_to_4_by_right: All residential districts: 1-4 dwelling units permitted by-right per 2021 reform; density above 4 uses RM1-RM3 (§66.220-221).

Massing explorer

Interactive 3D comparison across every district and valid overlay combination. Drag to orbit, scroll to zoom, use the slider to walk through sorted combinations.

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Sort by —

LOW

HIGH

drag to orbit · scroll to zoom

Max height

— ft

——

Floor area ratio

—

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Lot coverage

—%

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Setbacks (F / S / R)

— ft

——

Parking

— /unit

——

Max density

— du/ac

——

Min lot size

— sf

——

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District	Category	Height	FAR	Coverage	Setbacks	Parking	Density	Min lot

Sources & references

Primary source

City of Saint Paul Code of Ordinances — Title VIII Zoning Code

Codified through 2025 supplements; 1-4 unit reform effective 2023-01-01; parking-minimum elimination effective 2022-01-01 · retrieved 2026-04-19

Citations

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Research status

Publication gates

primary url present	passed
no aggregator cited	passed
confidence tags full form	passed
overlays have parameters trigger confidence	passed
preempt section city specific	passed

Data quality

46%completeness24 confirmed52 partial

Documented gaps

Ch. 66 dimensional tables (precise min lot, FAR, coverage, height per district) not retrieved live — Municode JS-rendering blocks scripted fetch. Values shown are documentary-knowledge typical estimates pending confirmation.
Ch. 68 RCOD sub-district parameters (RC1-RC4 setbacks, impervious caps, height modifiers) not retrieved live.
Ch. 67 GASR Grand Avenue dimensional caps (footprint, storefront width) not retrieved live.
LRSAS specific height/transparency/parking-maximum parameters not retrieved live.
Ch. 72 floodplain freeboard specific value (MN typical BFE+1 ft placeholder) not confirmed live.
Ch. 73 Heritage Preservation design guidelines per district not extracted.
B5 Central Business Service FAR ceiling and Skyway Committee review procedural standards not retrieved live.
T1-T4 Traditional Neighborhood dimensional parameters per tier not retrieved live.
Full district roster (whether PD Planned Development, Overlay Specific Use Districts, or site-plan-specific districts exist beyond the base roster) requires browser-based Municode ToC review.
Post-2025 text amendments (if any) not enumerated — requires Municode supplement letter review.

Known issues

cohort:needs-dom-retrievalfreshness:volatileblocker:municodedata:gaps-present

Verification

last_verified_at	2026-04-19T00:00:00Z
verifier_specialist	verification-pass
verifier_version	1.0
verification_result	partial
atomic_claims_checked	42
atomic_claims_passed	36
atomic_claims_failed	0
atomic_claims_partial	6
failed_claims
partial_claims_note	6 claims demoted to partial due to Municode JS-rendering block preventing live retrieval of specific dimensional values (Ch. 66 district numerics, Ch. 68 RCOD tier parameters, Ch. 67 Grand Avenue caps, Ch. 66.300 LRSAS parameters, Ch. 72 floodplain freeboard, Ch. 73 HPC design guidelines). No claims contradicted; all pending browser-based or PDF-supplement retrieval in v2.1. Preemption (5 entries), federal overlay refs (3 entries), and classification claims all supported.
narrative_ref	narratives/st-paul-mn/sp-2026-04-19-v2.json