South Windsor Planning & Zoning adopts zoning text amendments to allow small 'transit middle housing' and mixed-use developments

The South Windsor Planning and Zoning Commission voted to adopt Planning and Zoning Commission–sponsored zoning text amendments on June 23, 2026, to allow small-scale “transit middle housing” and mixed-use developments to proceed under a summary-review process. The commission set the effective date for the amendments as July 1, 2026.

The changes add two summary-review pathways to the regulations (identified in the draft as 4.18 for mixed use and 4.19 for transit middle housing) and add definitions and design criteria. Town staff described transit middle housing in the draft as “any type of housing up to 9 units,” including semi-attached, garden-style townhouses, cottages or single-family types. The mixed-use definition in the draft describes commercial use on the first floor with housing above.

Why it matters: the amendments aim to implement state requirements in Public Act 25-1 that create a streamlined review route for certain small-scale housing and mixed-use projects and to provide local design criteria — from sound insulation between floors to access separation — so proposals fit commercial zones while protecting adjacent residential areas.

Town staff said the draft incorporates an affordability component and a parking clarification tied to state law. Staff told the commission they would add a definition of “summary review” to the definitions section and insert a footnote in the parking table clarifying that developments of 16 units or fewer are exempt from local parking requirements under SSPA 25-1. On the affordability question, staff proposed no affordability requirement for developments of five units or fewer and requiring at least one affordable unit for developments with six or more units; the commission indicated support for that threshold.

Commissioners asked whether the word “transit” changes the meaning of middle housing; staff replied it does not and that “transit” is a confusing insertion in the statute in some towns. Commissioners also discussed whether treating summary review and site-plan review differently in the use table was necessary; staff said they left both references to match statutory language and would insert a clear definition.

A motion to adopt the PZC-sponsored text amendments was moved and seconded; the commission approved the motion by voice vote and the chair announced it carried. Staff said the document will be finalized with the agreed clarifications and posted with the effective date of July 1, 2026.

Quotes: Town staff (Michelle) summarized the definition: "Transit middle housing ... means any type of housing up to 9 units is considered a transit middle housing proposal." On affordability she told commissioners: "Developments 5 units or under have no affordability requirement. When development has 6 or more units, at least 1 unit [must be affordable]."

Next steps: Staff will add the summary-review definition to the definitions section, place the parking-footnote language in the parking table to reflect the state exemption, and publish the finalized text amendment with the effective date.