General Contractor in Lone Tree

We are a general contractor in Lone Tree, Colorado, building commercial space, tenant improvements, homes and exterior replacements in a city that is still growing into its plan. Lone Tree sits on Douglas County's northern border about 18 miles south of downtown Denver, with RTD light rail stops at Sky Ridge, Lone Tree City Center and RidgeGate Parkway. Residents voted to incorporate in 1995, and the City runs its own building program with its own design criteria, which is where every project here begins.

The City's own codes and design criteria

The City of Lone Tree Building Division conducts plan reviews, issues permits and performs inspections, and it accepts applications and inspection requests only through its online portal. Lone Tree is on the 2021 code cycle: the 2021 International Building, Energy Conservation, Mechanical, Plumbing, Residential and Fire Codes, each with City amendments, plus the 2021 International Fuel Gas Code, the 2023 National Electrical Code and the 2017 accessibility standard. Neighboring jurisdictions have moved to 2024 editions, so a design reused from another city needs checking line by line.

The ground is the familiar Front Range story. The Colorado Geological Survey maps potentially swelling soil and rock across the whole corridor, and Colorado's health department ties radon from the soil to about 500 lung cancer deaths a year statewide. Foundation design follows the geotechnical report, and radon gets a plan before the slab is poured.

Building in RidgeGate

RidgeGate is a 3,500-acre planned development south of Lincoln Avenue on both sides of I-25. It is home to nearly 5,000 residents and is planned for about 30,000 residents and 50,000 jobs at buildout. Development there is governed by the city's long-range plan, City Code, the RidgeGate 7th Amendment Planned Development District and sub-area plans such as the Lone Tree City Center and East Villages plans. RidgeGate East includes the Happy Canyon Creek and Badger Gulch natural corridors, and terrain rises from the developed north and west toward the grassland bluffs at Bluffs Regional Park, where about 250 acres remain zoned Rural Residential.

What needs a permit and what does not

Lone Tree draws clear lines on exterior work. Like-for-like residential window, door and siding replacements are exempt from permits, but replacing stucco, stone or brick needs one. On commercial and multifamily buildings, exterior alterations need Planning Division approval. The City also strongly recommends HOA or architectural committee approval before permitted work starts and keeps contact information for each HOA. Construction materials carry the City's 2.5 percent use tax, which belongs in the budget from the first estimate.

Re-roofing rules are specific

The Front Range sees a lot of summer hail, and Lone Tree spells out what a replacement roof has to include. Replacing more than 100 square feet of roofing needs a permit. Re-roofs need both a mid-roof and a final inspection, drip edge is required, concrete and clay tile need wind clips, and wood shakes and shingles must carry at least a Class C rating under the City's amendment. We schedule the mid-roof inspection into the roofing crew's sequence so the deck and underlayment are inspected before they are covered.

What we build in Lone Tree

Our Lone Tree work includes commercial buildings and tenant improvements around the City Center and the I-25 corridor, new homes and additions, and exterior replacement work. On larger RidgeGate projects, our construction project management keeps submittals, inspections and cost reporting in step with a city that inspects closely.

Lone Tree on the map

Nearby, we also build in Highlands Ranch, Centennial, Parker and Castle Rock. See every Front Range service area, or request a consultation for a Lone Tree project.