Concrete, Landscaping & Remodeling in Longmont, Colorado

Who issues building permits in Longmont?

City of Longmont Building Inspection Division (Building Services). Permits are reviewed and issued at the Building Inspection Division office, Development Services Center, 385 Kimbark St.; (303) 651-8332.

Source: longmontcolorado.gov

What permit does driveway approach, curb or sidewalk work need in Longmont?

A Work in the Right-of-Way permit is required before curb, gutter, ramp, driveway or sidewalk repairs or new installations, street cuts, and utility or tree work in the public right-of-way. It requires a certificate of insurance naming the City ($350,000 per person / $1,000,000 per occurrence) and costs $25 for initial review plus $30 for up to three inspections.

Source: longmontcolorado.gov

Does a patio or driveway on private property need a building permit in Longmont?

The City's examples of work requiring a building permit list 'Patios, sunrooms, decks, and pergolas' under additions; driveways and sidewalks on private property are not addressed, and permit questions go to Building Services at (303) 651-8332.

Source: longmontcolorado.gov

When does a retaining wall need a permit in Longmont?

Retaining walls over 48 inches require a building permit.

Source: longmontcolorado.gov

Who supplies water in Longmont?

City of Longmont Water Utilities. The City provides water within city limits. Left Hand Water District generally serves areas southwest, south and southeast of the City's service area, and Longs Peak Water District serves areas northwest, north and northeast.

Source: longmontcolorado.gov

What are the outdoor watering rules in Longmont?

Longmont remains at a Mild Drought Response Level (unchanged since May): reductions are voluntary for residents and there are no mandatory watering days. The City recommends not watering between 10 a.m. and 6 p.m., using cycle-and-soak, considering one less watering day per week, and turning off automatic irrigation on October 1.

Source: longmontcolorado.gov

Can new sod or seed get extra water in Longmont?

Since January 1, 2026, landscape plans for new development and redevelopment must use drought-tolerant or native vegetation as the primary ground cover, and nonfunctional turf (including artificial turf), such as strips between sidewalk and curb, is prohibited.

Source: longmontcolorado.gov

Does a sprinkler backflow preventer need testing in Longmont?

Testable backflow assemblies require at least annual testing, with results reported to the City. Testers must be ABPA- or ASSE-certified and submit through the online Backflow Assembly Test & Maintenance Report or by email to backflow@longmontcolorado.gov; property owners own the devices on their property.

Source: longmontcolorado.gov

Are there lawn replacement or sprinkler rebates in Longmont?

• Efficient irrigation equipment rebate — Bill-credit rebate for efficient irrigation equipment, including smart irrigation controllers, for City of Longmont water customers; apply within 45 days of purchase with proof of purchase (amounts are not listed on the page). longmontcolorado.gov
• Lawn Replacement (Resource Central) — Listed on the City's water conservation page as a new program for removing lawn and replacing it with water-wise landscaping, applied for through Resource Central. longmontcolorado.gov
• Slow the Flow sprinkler evaluation — Free sprinkler system evaluation through Resource Central, including a custom watering schedule. longmontcolorado.gov

Do you serve Longmont?

Yes. Longmont is about 20.8 miles north-west of our home base in Brighton, a routine drive we make regularly. Longmont straddles Boulder and Weld counties, and the permit question for your specific job gets answered before work starts, not after.

When is the right time of year for this in Longmont?

At about 4,980 feet, the Front Range gives a reasonably long season for concrete and landscape work, though the shoulder months swing hard. Interior work - remodeling, flooring, painting - runs year round, and winter is usually the easiest time to get it scheduled.