What are the setback requirements in Milwaukee residential districts?

Milwaukee Chapter 295 does not use one universal residential setback. RS and RT districts use established front setbacks, lot-width and orientation rules for side yards, and district-specific rear yards. Check the exact district table and parcel conditions rather than relying on a single 25/6/20 shorthand.

What is the maximum building height in Milwaukee residential districts?

Height varies by district and building type. Use the current Chapter 295 table for the exact RS, RT or RM district instead of a single citywide 35-ft assumption.

How should lot coverage be checked in Milwaukee?

Building coverage and accessory-structure limits vary by district and development type. Verify the exact Chapter 295 table and any applicable design or historic controls for the parcel.

Do ADUs simply use the ordinary base-zone setbacks in Milwaukee?

Not always. Milwaukee adopted specific ADU standards and treats ADUs as a Limited Use in listed districts. The current ADU provisions and the underlying district standards must be read together.

Milwaukee Setbacks & Height Limits — Residential Zones

Fact-checked against Milwaukee Chapter 295 materials current through the 2025 residential and ADU amendments on September 22, 2026.

Milwaukee's RS and RT districts do not use the simple fixed front/side/rear table shown on the previous version of this page. Current Chapter 295 uses established-setback rules, lot-width percentages, orientation-specific side yards, and separate corner/interior rear-yard values.

Current RS and RT Yard Framework

Current Table 295-505-2 uses the following structure for principal residential buildings.

Front setback

RS1 and RS2: established average front setback or 25 ft, whichever is less, under the current table.
RS3 through RS6 and RT districts: use the established-setback provisions specified by the table and surrounding code rather than one universal 20-ft figure.

The prior page's fixed 25-ft / 20-ft front-setback rows therefore oversimplified the current rule.

Street-side setback

Current table values include:

Districts	Street-Side Rule
RS1–RS2	20% of lot width, maximum 20 ft
RS3–RS4	10% of lot width, maximum 15 ft
RS5–RS6	10% of lot width, maximum 6 ft
RT1–RT2	20% of lot width, maximum 20 ft
RT3	10% of lot width, maximum 6 ft
RT4	3 ft

Interior side yards

For RS1–RS5, the current table generally uses:

north/west side: 3 ft;
south/east side: 6 ft;
combined side yards: 12 ft.

RS6, RT3, and RT4 use smaller current values, while RT1/RT2 use the 3/6/12-ft pattern.

The previous page's one-number side-yard entries such as “RS1 = 10 ft” and “RS2 = 6 ft” were not an accurate description of the current code.

Rear yards

Current Table 295-505-2 distinguishes interior and corner lots:

District	Interior-Lot Rear	Corner-Lot Rear
RS1	25 ft	25 ft
RS2	25 ft	25 ft
RS3	25 ft	25 ft
RS4	20 ft	15 ft
RS5	15 ft	10 ft
RS6	15 ft	10 ft
RT1	25 ft	20 ft
RT2	25 ft	20 ft
RT3	15 ft	10 ft
RT4	15 ft	10 ft

Where the rear of the property abuts an alley, Chapter 295 currently uses a 4-ft minimum rear setback, regardless of the ordinary table value.

Height Must Be Checked by Exact District

The previous page also assigned simplified height figures to RS, RT, RM1, and RM3.

Current Milwaukee zoning uses district-specific height and design standards. In particular, current City housing materials describe RM1–RM3 as 45-ft districts, so the prior claim that RM1 was 40 ft and RM3 was 50 ft was stale.

Use the current Chapter 295 table for the exact district and building type rather than carrying forward the old summary.

Accessory Dwelling Units Changed in 2025

Milwaukee adopted explicit ADU standards effective August 2, 2025.

Current City guidance allows ADUs as a limited use in RS1–RS6, RT1–RT4, RM1–RM7 and several other districts.

Current detached-ADU standards include:

minimum floor area: 300 sq ft;
maximum area: 1,300 sq ft of habitable and parking areas, or 16% of lot area, whichever is greater, but not more than 1,600 sq ft or the floor area of the largest dwelling unit;
maximum height: no greater than the principal building;
minimum side setback: 3 ft;
minimum rear setback: 3 ft, or 4 ft from the alley lot line where the ADU includes a garage with an overhead door facing the alley;
minimum building separation: 10 ft front-to-back and 5 ft side-to-side.

The prior page's ADU description should therefore be evaluated under these current 2025 standards.

See the Milwaukee ADU rules page for the full ADU framework.

How to Check a Property

Confirm the exact RS, RT, RM, or other zoning district.
Use current Table 295-505-2 and its established-setback rules.
Check lot width and side orientation before calculating side yards.
Determine whether the lot is interior, corner, or alley-abutting.
Check ADU/accessory-structure rules separately.
Check historic, overlay, airport, riverfront, and other special controls.
Confirm parcel-specific questions with Milwaukee DCD.

Official Sources

This guide is informational only. Current Chapter 295, lot configuration, overlays, and parcel-specific conditions control.