Troy, MI Zoning Overlays & Bonuses: Density Bonus Law (2026)

A, and makes the bonus discretionary: City Council decides, based on a recommendation from the Planning Commission, whether to grant it at all. 1. First, for every 10% of additional open space provided above the minimum required amount, and not encumbered by rights-of-way or utility easements, the applicant may receive a 10% bonus in density, or a fraction of that bonus for a smaller increment. Second, a housing-diversity bonus is available for developments offering a variety of housing types, or a housing type not currently offered in the city, but every bonus unit above the base yield must cap home square footage at 1,900 square feet and include a first-floor master bedroom and bathroom.

Third, a sustainable-design bonus of 10% of the base yield is available for projects using green infrastructure, stormwater best-management practices, or green building techniques; like the housing-diversity bonus, City Council discretion applies on a Planning Commission recommendation. 4 confirms these bonuses stack on top of each other rather than replacing one another. I, which requires the Planning Commission to evaluate the application against listed cluster-development objectives, including preservation of natural resources, innovative site design, buffering from adjacent property, and adequate public facilities, and to report findings and a recommendation to City Council before any bonus density or unit count is approved.