Hillcamp / Mesa Tops

The Hillcamp Project/Mesa Tops is a proposed residential development in the City of Lone Tree, Colorado, led by Brookfield Residential and BC-RG Mesa Tops JV LLC. The project spans approximately 392 acres and is planned to include 343 single-family homes.

The Hillcamp Project/Mesa Tops housing development is in the advanced planning and preliminary approval stages, with multiple technical studies, environmental assessments, and public engagement processes underway. Construction may start as early as 2026. The developer — Brookfield Residential, part of the multibillion Canadian-based Brookfield Corp. — has applied to build a large single-family neighborhood totaling roughly 392 acres split across two planning areas:

RidgeGate portion: 221 acres, with 261 single-family detached homes and 45 tracts.
Southridge portion: 171 acres, with 82 single-family homes and 22 tracts.
Total: 343 homes, a 2.68-acre private amenity center, internal roads, drainage systems, and seven stormwater detention ponds.

The design calls for five phases of construction, moving from east to west across the mesa and will consist of several years of construction. Phase 1 alone covers nearly 74 acres, with later phases adding homes, open space, and the private amenity center.

The developers say their project will include about 47 acres of community open space and ties into the Douglas County East-West Trail. EXISTING open space and the East/West Trail will be impacted in order to build this subdivision. Also, the open space they're touting is to benefit their residents, NOT the greater community.

According to current project plans, Cabela Dr. will be the main development access with Heather Dr. (in Surrey Ridge) and McArthur Dr. (in McArthur Ranch), to be used as emergency access. However, Developer and Lone Tree have started discussions regarding a permanent connection of McArthur Dr to the Hillcamp/Mesa Tops development. If McArthur Drive becomes a permanent pass-through road, McArthur Ranch and Wildcat neighborhoods will be negatively impacted with traffic and a potential shortcut from I-25 to Highlands Ranch. This not only impacts the recreational use of McArthur Drive but also poses critical saftey concerns for our kids going to and from school since this traffic will funnel out on Monarch and McArthur Ranch Rd

Today this area is open space with the East West trail running through it, heavily used for recreation by bikers, hikers, equestrians and families. Once this area is built out, wildlife such as our big elk herds, the open space and ability to enjoy the mountain range - east to west will all be destroyed - forever.