Planning commission backs Pine Canyon annexation and PD zoning; commissioners split timing on votes

The Castle Rock Planning Commission on April 24 voted to recommend Town Council approve both the annexation of the 535‑acre Pine Canyon site and the accompanying plan‑development (PD) zoning that would allow up to 1,800 residential units and a mix of single‑family, multifamily, commercial and open space uses.

Commissioners opened a lengthy staff presentation that summarized a multi‑year history of the property, which had active county applications between 2013 and 2020. Town staff and the property owner executed a pre‑annexation agreement in December that the staff said clarifies water service, traffic study expectations, view‑plain/tree protection standards and other regulatory commitments if annexation proceeds. Tara Vargasch, planning staff, told the commission the town's primary objective is to have the property developed under Town of Castle Rock standards rather than under unincorporated Douglas County jurisdiction.

The applicant team, represented by landowner Kurt Walker and consultant Marcus Pockner, described the PD plan as a reflective plan that matches densities to adjacent neighborhoods. The PD application proposes roughly 800 single‑family units concentrated east of I‑25 and up to 1,000 multifamily units concentrated along the interstate (a mixed‑use edge north of the existing Bluffs Apartments). The overall concept includes about 32% open space, a 72‑acre homestead area to remain in private agricultural use, and approximately 8.5 miles of trails. The applicant described a flexible parcel (PA‑6) that could be a boutique resort/spa or could be built as single‑family homes; the resort option would not increase the capped number of single‑family units but could change the mix within the cap.

Water was a key focus of commission questioning. Town water staff reported the applicant will dedicate roughly 757 acre‑feet of groundwater to the town for the development and reserve about 106 acre‑feet for ongoing agricultural irrigation on the homestead area and adjacent town open space; the town said it would supply renewable water sources and that the developer would pay system development fees for renewable water as the project grows. Planning staff stressed that if the property developed in the county it likely would rely on private wells and a private wastewater plant, and that annexation would allow integration with the town's renewable water plans, wastewater services and impact‑fee funding that supports regional capital projects.

Traffic and infrastructure were discussed at length. The developer has an existing traffic study (multiple iterations since 2013) and the pre‑annexation agreement permits staff acceptance of the current study for zoning review; site development plans will require updated traffic studies and the PD commits to a number of off‑site intersection improvements identified in the current study. Staff and the town's transportation planner said the town's transportation master plan has long anticipated development of this parcel and that required improvements would be paid by the developer as part of the approved scope.

Public comment included support and opposition. Speakers raised public safety concerns about a recently installed high‑pressure natural gas pipeline on the property and asked the town to consider setbacks and construction limits; other commenters expressed worries about traffic, school capacity and overall density. Several attendees urged that any approval require updated traffic work and careful phasing.

After public comment the commission voted first to recommend annexation to Town Council (recorded as approved) and then to recommend approval of the PD zoning. The plan‑development motion passed on a recorded vote of 7‑0; the annexation recommendation was recorded as approved by the commission earlier in the meeting (vote recorded in the transcript as 6‑0).

Why it matters: Pine Canyon is a large undeveloped inholding that sits inside or adjacent to existing Castle Rock neighborhoods. Annexation would place the site inside town jurisdiction, applying Castle Rock standards for roads, water, wastewater, parks and open space, and requiring payment of the town's impact fees for capital improvements. Because of its size and proposed mix, the development would have long‑term effects on traffic, schools, water resources and parks across the community.

Next steps: Planning Commission forwarded both items to Town Council. The annexation and PD zoning will proceed to separate Council actions; if Council approves, future site development plans for individual planning areas will return to the town and require updated traffic studies, detailed tree preservation and grading plans and final public‑land dedications for parks and potential school sites.