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Thornton Council approves Parterre Planning Area 5A concept, attaches traffic monitoring and conditions

Thornton City Council · April 29, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

The council unanimously approved a conceptual site plan for 72 acres in the Parterre development (Planning Area 5A) after extensive public comment on traffic; staff and the applicant committed to updated, site-specific traffic analyses and staged roadway triggers before major buildout.

The Thornton City Council unanimously approved a conceptual site plan for Planning Area 5A of the Parterre development, a roughly 72-acre parcel at the southwest corner of E-470 and Quebec Street, after residents urged the city to tighten traffic guarantees.

Principal planner Colin Weihab told the council the plan designates about 38 acres for regional commercial uses and about 34 acres for mixed-use development, and includes 19 lots, a linear park and a regional multiuse trail. "The proposed CSP reflects this vision and aligns with the regional mixed use designation," Weihab said.

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