Milwaukee Zoning & Land Use Guide

Last updated: 2026-03-26Verified: 2026-03-26

Key Zoning Facts

Planning Department

City of Milwaukee Department of City Development(414) 286-5800

Zoning Map

View Official Zoning Map

Building Code Edition

WI Uniform Dwelling Code / Commercial Building Code

ADUs Allowed

Yes

Primary District

RS1 — Single-Family Residential (Large Lot)

Max Height

35 ft

Milwaukee Zoning Overview

Milwaukee is a city in Wisconsin with approximately 577,222 residents, located in Milwaukee County. The city manages land use and development through its local zoning ordinance, which divides the municipality into districts regulating permitted uses, building heights, lot sizes, setbacks, and density.

Wisconsin has a statewide building code framework. Residential construction is governed by the Uniform Dwelling Code (SPS 320-325), and commercial construction follows the Commercial Building Code (SPS 361-366). Local jurisdictions enforce these codes and may adopt additional requirements.

Primary Zoning Districts

Milwaukee's zoning code includes several district classifications (RS1, RS2, RS3, RT1, RM1, RM3, LB1, LB2, CS, IL1, IH1). The RS1 (Single-Family Residential (Large Lot)) district requires a minimum lot size of 9,000 sq ft with setbacks of 25 ft (front), 10 ft (side), and 25 ft (rear). Maximum height is 35 ft. The RS2 (Single-Family Residential (Medium Lot)) district requires a minimum lot size of 6,000 sq ft with setbacks of 25 ft (front), 6 ft (side), and 20 ft (rear). Maximum height is 35 ft. The RS3 (Single-Family Residential (Small Lot)) district requires a minimum lot size of 5,000 sq ft with setbacks of 20 ft (front), 5 ft (side), and 20 ft (rear). Maximum height is 35 ft. The RT1 (Two-Family Residential) district requires a minimum lot size of 5,000 sq ft with setbacks of 20 ft (front), 5 ft (side), and 20 ft (rear). Maximum height is 35 ft. The RM1 (Multi-Family Residential (Low)) district has varying lot size requirements with setbacks of 20 ft (front), 5 ft (side), and 15 ft (rear). Maximum height is 40 ft. The RM3 (Multi-Family Residential (Medium)) district has varying lot size requirements with setbacks of 15 ft (front), 5 ft (side), and 15 ft (rear). Maximum height is 50 ft. The LB1 (Local Business 1) district has varying lot size requirements with setbacks of 0 ft (front), 0 ft (side), and 10 ft (rear). Maximum height is 35 ft. The LB2 (Local Business 2) district has varying lot size requirements with setbacks of 0 ft (front), 0 ft (side), and 10 ft (rear). Maximum height is 45 ft. The CS (Commercial Service) district has varying lot size requirements with setbacks of 0 ft (front), 0 ft (side), and 10 ft (rear). Maximum height is 45 ft. The IL1 (Industrial Light 1) district has varying lot size requirements with setbacks of 10 ft (front), 0 ft (side), and 10 ft (rear). Maximum height is 50 ft. The IH1 (Industrial Heavy 1) district has varying lot size requirements with setbacks of 15 ft (front), 0 ft (side), and 15 ft (rear). Maximum height is 60 ft.

ADU (Accessory Dwelling Unit) Rules

Milwaukee allows ADUs per Chapter 295 of the municipal code. Key provisions include:

Where allowed: On residentially zoned lots with a single-family or two-family principal building
Limit: One ADU per lot
Detached ADU: Maximum floor area of 1,300 sq ft
Internal/attached ADU: Maximum floor area of 1,000 sq ft
Principal building required: No ADU on lots without a principal building

Contact the Department of City Development at (414) 286-5800 for permitting requirements. Wisconsin does not have a statewide ADU mandate.

Development Process

Development in Milwaukee generally requires obtaining the appropriate permits from the city's planning and building departments. The process typically involves:

Zoning Verification — Confirm that your proposed use is permitted in the applicable zoning district
Site Plan Review — For commercial and multi-family projects, submit a site plan for review
Building Permit — Apply for a building permit with construction documents
Inspections — Schedule required inspections during construction
Certificate of Occupancy — Obtain final approval before occupying the structure

For projects that do not conform to existing zoning, property owners may need to seek a variance, special exception, or rezoning through the local board of zoning appeals or planning commission.

Key Considerations

Before starting any development project in Milwaukee, property owners should:

Verify the zoning classification of their property
Review setback, height, and lot coverage requirements for their specific district
Check for any overlay districts or special regulations
Determine if the property is in a flood zone using FEMA's flood map service
Confirm whether HOA covenants or deed restrictions apply
Contact the Planning Department at (414) 286-5800 for pre-application guidance

Disclaimer: This guide provides general information about zoning in Milwaukee and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with the City of Milwaukee or the municipal code before making development decisions.

Regulatory Layers That Apply in Milwaukee

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

FEMA Flood Zones: Applicable
View FEMA Flood Map

State — Wisconsin

Building Code: WI Uniform Dwelling Code (SPS 320-325) / Commercial Building Code (SPS 361-366)

View Wisconsin zoning overview

County — Milwaukee County

Role: County-level property records, tax assessment, unincorporated area planning

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

HOA / CC&Rs common: Yes
Check HOA CC&Rs and deed restrictions for additional requirements.

Primary Zoning Districts

RS1Single-Family Residential (Large Lot)

Min Lot: 9,000 sq ft
Max Height: 35 ft
Front Setback: 25 ft
Side Setback: 10 ft
Rear Setback: 25 ft

RS2Single-Family Residential (Medium Lot)

Min Lot: 6,000 sq ft
Max Height: 35 ft
Front Setback: 25 ft
Side Setback: 6 ft
Rear Setback: 20 ft

RS3Single-Family Residential (Small Lot)

Min Lot: 5,000 sq ft
Max Height: 35 ft
Front Setback: 20 ft
Side Setback: 5 ft
Rear Setback: 20 ft

RT1Two-Family Residential

Min Lot: 5,000 sq ft
Max Height: 35 ft
Front Setback: 20 ft
Side Setback: 5 ft
Rear Setback: 20 ft

RM1Multi-Family Residential (Low)

Min Lot: Varies
Max Height: 40 ft
Front Setback: 20 ft
Side Setback: 5 ft
Rear Setback: 15 ft

RM3Multi-Family Residential (Medium)

Min Lot: Varies
Max Height: 50 ft
Front Setback: 15 ft
Side Setback: 5 ft
Rear Setback: 15 ft

LB1Local Business 1

Min Lot: Varies
Max Height: 35 ft
Front Setback: 0 ft
Side Setback: 0 ft
Rear Setback: 10 ft

LB2Local Business 2

Min Lot: Varies
Max Height: 45 ft
Front Setback: 0 ft
Side Setback: 0 ft
Rear Setback: 10 ft

CSCommercial Service

Min Lot: Varies
Max Height: 45 ft
Front Setback: 0 ft
Side Setback: 0 ft
Rear Setback: 10 ft

IL1Industrial Light 1

Min Lot: Varies
Max Height: 50 ft
Front Setback: 10 ft
Side Setback: 0 ft
Rear Setback: 10 ft

IH1Industrial Heavy 1

Min Lot: Varies
Max Height: 60 ft
Front Setback: 15 ft
Side Setback: 0 ft
Rear Setback: 15 ft

District Code	Name	Min Lot	Max Height	Front Setback	Side Setback	Rear Setback	FAR
RS1	Single-Family Residential (Large Lot)	9,000 sq ft	35 ft	25 ft	10 ft	25 ft	—
RS2	Single-Family Residential (Medium Lot)	6,000 sq ft	35 ft	25 ft	6 ft	20 ft	—
RS3	Single-Family Residential (Small Lot)	5,000 sq ft	35 ft	20 ft	5 ft	20 ft	—
RT1	Two-Family Residential	5,000 sq ft	35 ft	20 ft	5 ft	20 ft	—
RM1	Multi-Family Residential (Low)	Varies	40 ft	20 ft	5 ft	15 ft	—
RM3	Multi-Family Residential (Medium)	Varies	50 ft	15 ft	5 ft	15 ft	—
LB1	Local Business 1	Varies	35 ft	0 ft	0 ft	10 ft	—
LB2	Local Business 2	Varies	45 ft	0 ft	0 ft	10 ft	—
CS	Commercial Service	Varies	45 ft	0 ft	0 ft	10 ft	—
IL1	Industrial Light 1	Varies	50 ft	10 ft	0 ft	10 ft	—
IH1	Industrial Heavy 1	Varies	60 ft	15 ft	0 ft	15 ft	—

ADU Rules in Milwaukee

ADUs:Allowed

Max Size: 1,300 sq ft (detached); 1,000 sq ft (internal/attached)

Permit Costs & Timelines

Specific permit fee schedules for Milwaukee are available from the local planning department. Fees vary based on project type, scope, and valuation.

Check Milwaukee permit fees →

Official Sources

City of Milwaukeecity.milwaukee.govOfficial source Milwaukee Municipal Codelibrary.municode.comOfficial source

Frequently Asked Questions

How do I find the zoning for my property in Milwaukee?

Contact the Milwaukee Planning Department at (414) 286-5800 or visit https://city.milwaukee.gov/DCD. You can also review the municipal code for zoning district descriptions and permitted uses.

What building code does Milwaukee follow?

Wisconsin has a statewide building code framework. Residential construction follows the Uniform Dwelling Code (SPS 320-325), and commercial construction follows the Commercial Building Code (SPS 361-366). Contact the local building department for specific requirements.

Do I need a permit for home improvements in Milwaukee?

Most structural modifications, additions, and changes of use require a building permit. Contact the Milwaukee building department at (414) 286-5800 for specific requirements.

Can I build an ADU (Accessory Dwelling Unit) in Milwaukee?

ADU regulations vary by municipality. Contact the Milwaukee Planning Department at (414) 286-5800 for current requirements regarding accessory dwelling units.

Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, financial, or professional advice. Zoning codes and building regulations change frequently. Always verify current requirements with your local planning department and building authority before making any decisions.