Waukesha, WI Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- Principal building cap, RS-1
- 40 feet maximum
- Accessory building cap
- Under 20 feet
- Accessory vs. principal
- Accessory can't exceed principal height
- Governing section
- Municipal Code Sec. 22.24
- Height flexibility path
- Planned Unit Development under Sec. 22.52
- Variance authority
- Board of Zoning Appeals, Sec. 22.68
Summary
In Waukesha's RS-1 Single-Family Residential District, Municipal Code Sec. 22.24 caps a principal home at forty feet and any accessory building at under twenty feet, and an accessory structure can never be taller than the house itself. The Plan Commission can adjust the cap only for a Planned Unit Development.
BUILDING HEIGHT AND AREA. (Am. #11-16) No principal building or part of a principal building shall exceed forty (40) feet in height. Accessory buildings shall be less than twenty (20) feet tall and shall not exceed the height of the principal structure. ... PLANNED UNIT DEVELOPMENTS. (Cr. #38-02) The restrictions on lot area, lot width, building height, setbacks, and yards may be reduced or increased if the property is part of a Planned Unit Development Overlay District in accordance with Section 22.52.
Full Breakdown
2 dwelling units per net acre. Accessory buildings, such as detached garages, storage sheds, or workshops, are held to under twenty feet and cannot exceed the height of the principal structure on the same lot regardless of how tall that structure actually is. The same subsection also sets minimum floor areas that interact with the height rule: a one-story principal building needs at least 1,600 square feet, a bi-level or two-story home needs a 1,000-square-foot first floor, and a tri-level needs 400 square feet of living area per level, so a builder cannot use extra height to substitute for required floor area.
52, which routes any height variation through Plan Commission and Common Council review rather than an administrative sign-off. 68, which can grant one only on findings of exceptional circumstances tied to the property, not simple preference or cost.
Violations & Fines
Building or altering a structure in the RS-1 district beyond the forty-foot principal or twenty-foot accessory height limits without a Board of Zoning Appeals variance or an approved Planned Unit Development is a Chapter 22 violation, enforceable by the Zoning Administrator under Section 22.67 with injunctive relief available to the City or an affected neighbor. The Municipal Code's general penalty in Section 25.05 applies: $10 to $2,500 for a first offense plus costs, $100 to $5,000 for each repeat offense, and each day the violation continues counts separately.
Frequently Asked Questions
How tall can a house be in Waukesha's RS-1 district?
How tall can my detached garage or shed be?
Can I get an exception to build taller than forty feet?
Do other Waukesha residential districts share the same height limit?
Sources & Official References
Other rules in Waukesha
Compare Waukesha to another location·View the Wisconsin building setbacks & zoning overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.