Middleton sustainability committee details environmental asks for Ziegler Farm subdivision

Developers for the proposed Ziegler Farm subdivision presented a revised concept to the Middleton Sustainability Committee Wednesday, highlighting road‑grid changes to avoid wetland fill, tightened environmental setbacks and aggressive stormwater infiltration targets.

Brian Munson of Vandewall told the committee the plan shifts a route to preserve wetlands and expands the setback from Graeber Pond to about 100 feet — larger than the typical 75‑foot buffer — and designs stormwater systems to achieve 100% on‑site infiltration. He said the project refines a trail corridor and intends to provide bio‑infiltration features and regional trail connections by boardwalk in wet areas.

Committee members pressed developers on several sustainability details. Lynn asked whether wildlife crossings and wider tree buffers could be added; Munson said north and south corridors would be retained where possible, with narrow corridors about 25–27 feet that would be enhanced with prairie plantings and markers to preserve tree lines. On archaeological concerns flagged by the study, developers said they would evaluate grading impacts and create a plan in case artifacts are encountered during excavation.

Matt Brink of Viridian Homes said the project will include conduit in garages to enable owner‑installed EV chargers later, but said plug‑and‑play chargers would not be standard: “Typically, what we've done is we have conduit installed in all of the garages. It's so that there's opportunities to size the wires appropriately based on what kind of charger people wanna do,” Brink said.

On building electrification, committee members pushed for stronger language beyond offering options. Kevin and Alder Schafer urged that the marketing and sales materials actively promote heat pumps and induction ranges rather than treating them as optional extras; Brink said the construction side does not make heat pumps standard across every product tier because of cost and attainability constraints but agreed to consult his construction team and return with more concrete language. The committee asked the developers to provide existing sales and marketing materials for review.

Kelly, the city staff liaison, said the sustainability committee's role was to compile and forward official feedback to the Plan Commission. The committee asked Kelly to revise the draft feedback to replace passive language ("offer/help if asked") with promotion language ("promote/encourage" heat pumps and induction cooktops), clarify expectations about reducing nonfunctional grass and pesticide/herbicide use, and confirm stormwater and infiltration commitments. Kelly agreed to revise and circulate the updated feedback ahead of the Plan Commission deadline.

Next steps: developers will send marketing and technical details to staff; Kelly will update the committee's feedback and circulate a revised draft for quick review before it is forwarded to the Plan Commission.