Commercial Build-Out Contractor in Denver

When you're building out a commercial space in Denver, the timeline is everything. Every week your space isn't ready is a week of lost revenue. 303 Construction has been delivering commercial tenant build-outs across the Denver metro for over 20 years — offices, retail spaces, restaurants, medical offices, and coworking spaces. We understand that commercial means fast, clean, and on budget.

Commercial build-out costs in Denver vary widely based on the type of space: basic office build-outs run $40–$80 per square foot, retail spaces $60–$120 per square foot, and restaurant build-outs $100–$200+ per square foot due to grease traps, hood systems, and specialized plumbing. We provide detailed estimates tailored to your specific space and business needs.

We work directly with landlords, property managers, architects, and business owners to deliver spaces that meet lease requirements, ADA compliance standards, and local building codes. We coordinate all trades — framing, HVAC, electrical, plumbing, fire suppression, data/low voltage, drywall, flooring, painting, and finish carpentry.

Our commercial team understands Denver's commercial permit process and works efficiently to keep your project on schedule. We've built out spaces in LoDo, RiNo, Cherry Creek, the DTC, and throughout the Denver metro. We know the building departments, we know the inspectors, and we know how to avoid the delays that kill commercial timelines.