The Hillcamp proposal would place 343 single-family homes on a landlocked mesa above Lone Tree — no assured water supply, high winds, adjacent to a known landslide, and routed through rural roads never built to carry a development of this scale. It is the wrong project for this land.
The City is taking public comments through May 26. Every letter goes into the record.
Below are the six reasons the proposal does not fit this land — and the simple way to add your voice to the record before May 26.
This is not opposition to growth. It is opposition to a specific plan that fails on the three issues that protect human life, our shared land, and the agreement Lone Tree voters made in 2000.
343 homes on a high-wind mesa with a single public collector road. SMFR's February 4 referral is conditional, not an unconditional approval. McArthur's emergency vehicle access is admitted to be too steep for a public road. The IFC requires a true second access for any development over 30 units — this proposal exceeds that threshold by more than a thousand percent.
The Colorado Geological Survey formally found the developer's geotechnical record insufficient on January 30, 2026. The site sits adjacent to the January 2025 Tract C landslide, currently in litigation. There is no City or State Engineer water-adequacy determination on this project.
Lone Tree voters approved rural-residential zoning here in 2000. What is now being proposed is an urban village with an amenity center — a product type that does not conform to that zoning, and a density the rural Type III and IV roads were never built to carry.
Brookfield Residential's resubmittal is currently in its second public-comment period at the City of Lone Tree. These are the numbers our neighborhood would have to live with.
† The interchange is already projected to fail. The RidgeGate & I-25 interchange — which serves Sky Ridge Medical Center — is forecast to reach a failing level of service by 2028 without Hillcamp. The project's added trips arrive on top of an interchange that already cannot keep up. On May 15, 2026, a fatal I-25 closure between Happy Canyon and Castle Pines held residents on those arterials for over three hours.
Each is independently sufficient. Together, they describe a project that is in the wrong place, at the wrong density, on the wrong roads, with the wrong infrastructure.
The developer's own off-site utility report admits the existing water supply already has trouble keeping pressure up during peak demand — before adding 343 new homes. There is no formal determination on this project that the water supply is adequate for what's being proposed, and neighbors who rely on private wells will feel the consequences first.
Water supply343 homes are being asked to share a single public collector road. The fire code requires a real second way out for developments over thirty homes. The proposed McArthur emergency access is acknowledged in the developer's own materials to be too steep to ever function as a true public road, and the local fire authority has only given a conditional approval. In a wildfire on a high-wind mesa, this neighborhood has nowhere to go.
Wildfire & emergency accessThe State's geotechnical reviewer found the developer's geological record insufficient in late January. The site sits directly adjacent to a January 2025 landslide on the same hillside, now in active litigation. The developer's own drainage engineer concedes that stormwater carried over these slopes "would create unstable slope conditions." Permanent homes and a public road should not be built on ground that has already moved.
Slope & landslideWhat's being proposed is not a quiet extension of a rural neighborhood. It is an urban village with an amenity center — 343 dense homes organized around a single arterial. That kind of development does not conform to the rural-residential zoning Lone Tree voters approved in 2000, and the rural roads built to serve large-lot homes were never designed to carry it. A mesa top is not a suburb in waiting.
Wrong product · Wrong placeLone Tree's Comprehensive Plan calls for infrastructure-first growth, protection of natural resources, neighborhood compatibility, and preservation of the rural character at the City's edge. This proposal contradicts every one of those policies. The City has previously denied applications on Comprehensive Plan grounds despite a staff recommendation of approval. The same analysis applies here, with more on the record.
Comp Plan conformanceThe RidgeGate and I-25 interchange — the one that serves Sky Ridge Medical Center — is already forecast to reach a failing level of service by 2028 without Hillcamp. The project arrives on top of an interchange that cannot absorb its baseline growth. The developer's own traffic study understates the 3,136 daily trips Hillcamp would add, and on May 15, 2026 a fatal closure on I-25 between Happy Canyon and Castle Pines kept residents on those arterials for over three hours.
Traffic · RidgeGate & I-25 · Sky RidgePick the concerns that matter most to you. We'll assemble a thoughtful neighbor-to-City letter you can review, edit, and send. Important: the same letter has to be submitted on each of the four pending Hillcamp applications for your comment to count on the full project. We make that easy below.
For your comment to count on the entire Hillcamp project, the same letter has to be submitted on each of the four pending applications. Click Copy letter above so it's in your clipboard, then work through these four links one at a time.
Tip: paste your letter into a Notes/Word doc first as a backup, then into each comment form. Browsers occasionally clear the clipboard between tabs.
Hillcamp is currently in its second referral period before the City of Lone Tree. The decision points ahead are real, and so is the window to influence them.
Surrey Ridge residents, SMFR, CPW, OSNR, and Douglas County submitted formal comments documenting wildfire access deficiencies, density concerns, and ecological impact.
The City of Lone Tree adopted the new wildfire code on first and second reading. The developer has no vested rights in this plan or its density until the City conditionally approves the application — which means our comments matter, and the new code applies.
The window to file public referral comments closes. Every comment becomes part of the official record the Planning Commission and City Council will see.
Staff report, Planning Commission recommendation, City Council public hearings. Conditions, denial, or approval — all decided on the record being built now.
The most important thing you can do is submit your letter. After that, here are three quick ways to amplify it.
Pick one household who hasn't heard about this yet. Forward this page. The strength of our voice is the number of households who add theirs.
Forward via email →Planning Commission and City Council hearings will be set this summer. Showing up — and being recorded as present — counts in a way an email cannot.
Get hearing alerts →Save the Lone Tree Bluffs is the broader community effort — a petition, a Dropbox of source documents, and a running list of recent articles. Sign and share.
Save the Lone Tree Bluffs →Surrey Ridge is a covenanted rural-residential and equestrian neighborhood at the northern edge of Douglas County — residents who live here, trail riders, an active equestrian group, families who chose this for the open sky, the low density, and the quiet.
The Concerned Residents of Surrey Ridge are a coalition of homeowners working alongside Save the Lone Tree Bluffs and other communities affected by the Hillcamp proposal. Our May 14 community meeting was heavily attended — a turnout that tells you how seriously this neighborhood takes what is being proposed.
We will fight for thoughtful development on this land — development that has the water to support it, the fire access to protect it, roads built for the traffic it generates, and a footprint that respects the wildlife and the bluffs we share. We are not against growth. We are for getting it right.
Questions about the proposal? Want to volunteer or share something we should know? We read every message.
Everything below is publicly filed or publicly accessible. We link rather than restate so you can read the source for yourself.
The official application materials, referrals, and how to file a public comment.
Articles, the Dropbox document library, and the petition.
A plain-language breakdown of the wildfire and evacuation analysis.
Why water adequacy is the most underrated piece of this proposal.
The actual PDD record — what was authorized and what was not.
Landslide-prone ground on and across from the proposed Hillcamp Trail.
Short, infrequent updates: comment deadlines, hearing dates, document drops. We will not share your address with anyone and we will not flood your inbox.