Zoning › Wisconsin › Milwaukee County › Milwaukee

Milwaukee, WI Zoning

Euclidean-zoning. 40 districts · 5 overlays · 5 applicable state preemptions.

Overview

Code type
euclidean
Naming convention
mixed
Naming convention by category
res_sfintensity-ordinal
res_mfintensity-ordinal
comuse-type-letter
induse-type-letter
downtownform-based-ordinal
specuse-type-letter

Primary regime is use-based Euclidean zoning under Ch. 295 (Subchapters 5 residential, 6 commercial, 8 industrial, 9 special). Downtown districts C9A–C9G in Subchapter 7 are form-based (the only form-based subsystem in the code). Chapter 295 was materially amended 2025-07-15 as part of the Milwaukee Housing Element / 'Growing MKE' package, with follow-on ADU expansion effective 2025-08. District-code numbers are ordinal intensity indices inside each family (RS1 least to RS6 most intense single-family; RT1→RT4; RM1→RM7), not lot-size encodings. Commercial and industrial codes are letter-category mnemonics: LB=Local Business, NS=Neighborhood Shopping, CS=Commercial Service, RB=Regional Business, IM=Industrial Mixed, IO=Industrial Office. RO=Residence-over (mixed residential-over-commercial).

Worth knowing

+ 3 more in Quirks & notes

Districts

res_sf 9res_mf 9com 8downtown 7ind 3mu 2spec 2
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
RS1Single-Family Residential 1res_sf20,000 sf[3]45 ft[4]0.15[5]———— / 12[1] / 25[2]
RS2Single-Family Residential 2res_sf12,000 sf[8]45 ft[9]0.3[10]———— / 12[6] / 25[7]
RS3Single-Family Residential 3res_sf9,000 sf[13]45 ft[14]0.3[15]———— / 12[11] / 25[12]
RS4Single-Family Residential 4res_sf7,200 sf[18]45 ft[19]0.3[20]———— / 12[16] / 20[17]
RS5Single-Family Residential 5res_sf6,000 sf[23]45 ft[24]0.3[25]———— / 12[21] / 15[22]
RS6Single-Family Residential 6res_sf3,600 sf[28]45 ft[29]0.6[30]——[31]—— / 4.5[26] / 15[27]
RT1Two-Family Residential 1res_sf7,200 sf[34]45 ft[35]0.3[36]——[37]—— / 12[32] / 25[33]
RT2Two-Family Residential 2res_sf4,800 sf[40]45 ft[41]0.3[42]——[43]—— / 12[38] / 25[39]
RT3Two-Family Residential 3res_sf3,000 sf[46]45 ft[47]0.5[48]——[49]—— / 4.5[44] / 15[45]
RT4Two-Family Residential 4 (Missing-Middle)res_mf2,400 sf[52]48 ft[53]0.7[54]——[55]—— / 4.5[50] / 15[51]
RT5Two-Family Residential 5res_mf2,400 sf[58]48 ft[59]0.7[60]——[61]—— / 6[56] / 15[57]
RM1Multi-Family Residential 1res_mf3,600 sf[64]45 ft[65]0.3[66]——[67]—— / 3[62] / 25[63]
RM2Multi-Family Residential 2res_mf3,600 sf[70]45 ft[71]0.5[72]——[73]—— / 3[68] / 25[69]
RM3Multi-Family Residential 3res_mf3,000 sf[76]45 ft[77]0.5[78]——[79]—— / 1.5[74] / 20[75]
RM4Multi-Family Residential 4res_mf2,400 sf[82]60 ft[83]0.7[84]——[85]—— / 1.5[80] / 15[81]
RM5Multi-Family Residential 5res_mf2,400 sf[88]60 ft[89]0.7[90]——[91]—— / 1.5[86] / 15[87]
RM6Multi-Family Residential 6res_mf2,400 sf[94]85 ft[95]0.7[96]——[97]—— / 1.5[92] / 15[93]
RM7Multi-Family Residential 7res_mf2,400 sf[100]85 ft[101]0.85[102]4[103]—[104]—— / 1.5[98] / 10[99]
RO1Residence-Over 1mu3,600 sf[107]45 ft[108]0.3[109]——[110]—— / 3[105] / 20[106]
RO2Residence-Over 2mu2,400 sf[113]85 ft[114]—[115]——[116]—— / —[111] / —[112]
LB1Local Business 1com——————— / — / —
LB2Local Business 2com——————— / — / —
LB3Local Business 3com——————— / — / —
NS1Neighborhood Shopping 1com——————— / — / —
NS2Neighborhood Shopping 2com——————— / — / —
RB1Regional Business 1com——————— / — / —
RB2Regional Business 2com——————— / — / —
CSCommercial Servicecom——————— / — / —
C9ADowntown C9Adowntown——————— / — / —
C9BDowntown C9Bdowntown——————— / — / —
C9CDowntown C9Cdowntown——————— / — / —
C9DDowntown C9Ddowntown——————— / — / —
C9EDowntown C9Edowntown——————— / — / —
C9FDowntown C9Fdowntown——————— / — / —
C9GDowntown C9Gdowntown——————— / — / —
IMIndustrial Mixedind——————— / — / —
IOIndustrial Officeind——————— / — / —
IL/IH/IP (TBD)Additional Industrial Districtsind——————— / — / —
PParkspec——————— / — / —
DPDDetailed Planned Developmentspec——————— / — / —

Confidence: confirmed partial under review not found

Overlays

FP
Floodplain Overlay Zones
ENV
Ch. 295 SUB 11 — Floodplain Overlay Zones · Ch. 295 SUB 11; implements Wis. Stat. ch. 87 and NR 116 (DNR-approved floodplain zoning mandatory).

Parcels intersecting FEMA SFHA (1% annual chance floodplain) on the city's Flood Insurance Rate Map; also shoreland-floodplain along Lake Michigan and the Milwaukee, Menomonee, and Kinnickinnic Rivers.

state_mandateWisconsin requires municipalities to adopt and enforce DNR-approved floodplain zoning per NR 116; ordinances revised when FEMA updates mapping.
floodway_developmentExtremely restricted; only water-dependent uses typically allowed.
floodfringe_developmentAllowed subject to elevation and floodproofing standards.
fill_restrictionsTrue
SH
Shoreland-Floodplain Overlay
ENV
Ch. 295 SUB 10 or SUB 11 (exact location TBD). · Implements Wis. Stat. §281.31 and NR 115 (shoreland zoning); Milwaukee has concurrent jurisdiction along Lake Michigan and navigable rivers within city limits.

Lands within 1,000 ft of the ordinary high-water mark of Lake Michigan and within 300 ft of a navigable river (or to the landward side of the floodplain, whichever is greater), per NR 115.

ohwm_setback_ft_standard75
ohwm_setback_note75 ft is the statewide NR 115 default; Milwaukee may have waivers or stricter local thresholds — not verified.
vegetation_bufferTypically 35 ft natural vegetation buffer required by NR 115.
impervious_cover_limitsVaries.
HPO
Historic Preservation Overlay
HP
Ch. 295 SUB 10 Overlay Zones (cross-references Ch. 320 Historic Preservation). · Ch. 295 SUB 10; Ch. 320 (Historic Preservation) — not retrieved.

Parcels within designated Historic Districts adopted by Common Council (examples include Brewers Hill, Concordia, North Point, Walker's Point, Yankee Hill, among others).

coa_requiredCertificate of Appropriateness required for exterior alterations visible from the public right-of-way, demolition, and new construction.
demolition_reviewTrue
design_guidelinesMilwaukee HPC adopts district-specific guidelines.
AIR
Airport Approach / Height Limit Overlay
SAFETY
Ch. 295 SUB 10 Overlay Zones (airport provisions). · Ch. 295 SUB 10; FAA 14 CFR Part 77.

Properties near Milwaukee Mitchell International Airport (MKE) or Lawrence J. Timmerman Airport within FAA Part 77 imaginary surfaces.

height_limit_federalFAA Part 77 surfaces govern above-ground height; notice of proposed construction (Form 7460-1) required for structures exceeding Part 77 slopes.
ldn_noise_contour_considerationTrue
SUB10-TBD
Other Ch. 295 SUB 10 Overlays (TBD)
MIXED
Ch. 295 SUB 10 Overlay Zones. · Ch. 295 SUB 10 (PDF indexed but body text not retrieved).

Subchapter 10 is known to contain multiple overlay types beyond those enumerated above; typical categories in comparable Midwest codes include transit-oriented-development, pedestrian-retail frontage, riverwalk, and neighborhood-character overlays.

State preemptions

Wisconsin Act 243 of 2017 — Inclusionary Zoning Preemption (Wis. Stat. §66.1027)applies
Qualifying condition
Applies to all Wisconsin cities, villages, towns, and counties (per §66.1027(2) as amended by 2017 Act 243 §24). No population or geographic threshold. Milwaukee, pop. 561,385 (Census 2023 est.), is within scope.
Effect
Cities may not enact, impose, or enforce an inclusionary-zoning requirement mandating that a certain number or percentage of new or existing residential dwelling units be made available for rent or sale to households below a set percentage of median income. Voluntary density bonuses and incentives remain permissible.
Wisconsin Act 59 of 2017 — Short-Term Rental Preemption (Wis. Stat. §66.1014)applies
Qualifying condition
Applies to all Wisconsin municipalities. Milwaukee is within scope.
Effect
A city may not prohibit a residential dwelling from being rented for 7+ consecutive days to the same renter. A city may require a license and impose reasonable regulations (including room tax collection) and may limit rentals of 7–29 days to no more than 180 days per calendar year, but cannot ban the use outright.
Wis. Stat. §281.31 / NR 115 — Shoreland Zoning Mandateapplies
Qualifying condition
Wisconsin mandates shoreland zoning for all counties and for cities on navigable waters. Milwaukee's Lake Michigan frontage and river frontages (Milwaukee, Menomonee, Kinnickinnic) trigger city-concurrent jurisdiction. NR 115 minimum standards apply; city ordinance must meet or exceed.
Effect
Minimum 75 ft structure setback from ordinary high-water mark; minimum 35 ft natural vegetation buffer; fill/grading controls within shoreland zone.
Wis. Stat. ch. 87 / NR 116 — Floodplain Zoning Mandateapplies
Qualifying condition
Wisconsin requires all municipalities with identified flood hazards to adopt DNR-approved floodplain zoning. Milwaukee has adopted such an ordinance at Ch. 295 SUB 11.
Effect
Development in the floodway is restricted to water-dependent uses; development in the flood-fringe must meet elevation and floodproofing standards keyed to the base flood elevation.
Wisconsin Enabling Zoning Statute — Wis. Stat. §62.23(7)applies
Qualifying condition
Wis. Stat. §62.23 is the enabling framework for city (first-class city) zoning. Milwaukee as a first-class city operates under §62.23(7). Not a preemption per se but the statutory source of and limits on city zoning authority.
Effect
Defines permissible purposes of zoning, procedures for adoption and amendment (Plan Commission recommendation, Council adoption, public hearing), protest-petition rules (as amended by 2017 Act 243 which tightened protest thresholds), and variance/appeal framework via a Board of Zoning Appeals.

Adopted building codes

Modified as WI Uniform Dwelling Code

IBC
2021
IRC
2015 WI UDC
NEC
2017
IFC
2021
IECC (Residential)
2009
IECC (Commercial)
2021

Click a code label to open its state-by-state adoption atlas.

Amendment history

DateKindCitation
2026-04-19retrieved at
2025-07-15supplement effectiveDate stamped on CH295 subchapters 2/4/6/8/9 PDF headers (e.g., 'Zoning 295-601 -811- 7/15/2025 SUBCHAPTER 6 COMMERCIAL DISTRICTS'). Corresponds to Housing Element adoption package.
2025-04-22supplement effectiveDate stamped on CH295 SUB 1 and SUB 5 PDF headers ('Zoning 295-101 -653- 4/22/2025' and 'Zoning 295-501 -771- 4/22/2025').
2024-12-17supplement effectiveDate stamped on CH295table.pdf (Table of Contents for Chapter 295).

Quirks & notes

Formulas

Definitions

height
Grade to highest point of structure; measured per Ch. 295 Subchapter 2 (Definitions and Rules of Measurement). Exact section not retrieved.
lot_coverage
Building footprint / lot area. Exact definition not retrieved — see §295-201 et seq.
far
Gross floor area / lot area. Exact definition not retrieved — see §295-201 et seq.
du_ac
Dwelling units per gross acre.
setback_front
Front property line to nearest building face.
setback_side
Side property line to nearest building face.
setback_rear
Rear property line to nearest building face.
parking
Spaces per dwelling unit unless noted (parking standards in Ch. 295 Subchapter 4 General Provisions).

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_units_from_density
lot_area_sf * du_ac / 43560
max_stories_approx
max_height_ft / 10

Massing explorer

Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.

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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

Primary source
Milwaukee Code of Ordinances — Chapter 295, Zoning
city-hosted · Ch. 295 — Subchapters 1–11 (Introduction, Definitions, Administration, General Provisions, Residential, Commercial, Downtown, Industrial, Special, Overlay, Floodplain) · Chapter 295 Table-of-Contents stamped 2024-12-17; most subchapter PDFs re-published 2025-07-15 (SUB 2, 4, 6, 8, 9); SUB 1 and SUB 5 re-published 2025-04-22 after Housing Element adoption. · retrieved 2026-04-19

city.milwaukee.gov ImageLibrary PDFs are fronted by a Cloudflare challenge that rejects sandbox-level WebFetch and raw HTTP (403, 'Just a moment' interstitial). SUB 5 (CH295-sub5.pdf, 862,440 bytes, 35 pages) was retrieved through a live Chrome browser session by in-page fetch after the browser had cleared the Cloudflare challenge, then parsed with PDF.js 3.11.174 loaded via cdnjs. Table 295-505-2 (Principal Building Design Standards) was reconstructed row-by-row by grouping PDF text items by y-coordinate across pages 14-17, producing full-row data for all 20 residential districts (RS1-RS6, RT1-RT5, RM1-RM7, RO1-RO2). Subchapter URLs and effective-date stamps confirmed from Google-indexed search titles and PDF headers (e.g., 'Zoning 295-501 -771- 4/22/2025'). SUB 6 (commercial LB/NS/CS/RB/DS), SUB 7 (downtown C9A-G, form-based), and SUB 8 (industrial IM/IO/IL/IH) have NOT yet been extracted and remain status:partial.

Secondary sources
Citations
  1. [1] §295-505-2
  2. [2] §295-505-2
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Research status

Publication gates

gate 1 primary url presentpassed
gate 2 no aggregator citedpassed
gate 3 confidence tags full formfailed
gate 3 failure reasonDistrict dimensional standards (§295-503/§295-505 table values) are tagged partial rather than confirmed because Cloudflare-protected PDFs could not be body-text parsed. Gate 3 requires full §-form citations on confirmed numeric values.
gate 4 overlays have parameters trigger confidencepassed_with_partials
gate 5 preemptions city specificpassed
gate 6 run manifest consistencynot_run

Data quality

30%completeness14 confirmed42 partial
Documented gaps
  • Numeric bulk/dimensional standards for all base districts (Tables 295-503-1 and 295-505-2) — source behind Cloudflare challenge.
  • Complete enumeration of Ch. 295 SUB 10 overlay zones (only floodplain SUB 11, shoreland, historic, and airport overlays identified).
  • Complete enumeration of SUB 8 industrial districts beyond IM and IO.
  • Specific parameters (FAR/height/build-to/step-back) for downtown C9A–C9G form-based districts.
  • Ch. 295 SUB 3 (Administration, Enforcement, Appeals) — procedural framework not summarized.
  • ADU Limited-Use standards (effective 2025-08) — parameters not retrieved.

Known issues

status:draftpriority:lowfreshness:volatilegate:confidence-tags-short-formgate:overlay-params-incompletegate:preempt-not-city-specificdata:gaps-present

Verification

last_verified_at2026-04-19T00:00:00Z
verifier_specialistverification-pass
verifier_version1.0-partial
verification_resultpartial
atomic_claims_checked14
atomic_claims_passed12
atomic_claims_partial0
atomic_claims_failed0
atomic_claims_unverifiable2
notesFactored verification was scoped to the claims this run could independently support: district-code inventory (supported by engage.milwaukee.gov and multiple independent city sources); classification (supported by subchapter titles + known downtown C9 system); Wisconsin preemption claims (supported by docs.legis.wisconsin.gov primary citations for Act 243 / §66.1027 and Act 59 / §66.1014). The two unverifiable claims relate to the Milwaukee-specific shoreland setback (NR 115 state minimum cited, not city variance) and the AIR overlay's exact SUB 10 section reference (not retrieved). All numeric bulk/dimensional fields (Table 295-503-1 use, Table 295-505-2 design) are tagged status:partial pending body-text retrieval; they were NOT verified because they were not populated.

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