Longmont, CO Home Business: Zoning & Home Occupation Permits (2026)
Key Facts
- Governing section
- LMC § 15.04.040.C.4
- Max area (no public)
- 50% of dwelling floor area
- Max area (serves public)
- 15% of dwelling floor area
- Workers allowed
- 1 resident + 1 nonresident
Summary
Longmont caps home occupations at 50 percent of a dwelling's gross floor area if no customers visit, or just 15 percent if the business serves the public on-site.
d.Size for home occupation:i.For home occupations not serving the public at the location, the total area used for the home occupation shall not exceed an area representing 50 percent of the gross floor area of the principal dwelling unit.ii.For home occupations engaged in serving the public at the location, the total area used for the home occupation shall not exceed an area representing 15 percent of the gross floor area of the principal dwelling unit.
Full Breakdown
Longmont Municipal Code § 15.04.040.C.4 requires home occupations to operate as an accessory use to a principal residential use, carried on by a resident plus no more than one nonresident employee. Size is capped by whether the public visits: home occupations not serving customers on-site may use up to 50 percent of the dwelling's gross floor area, while occupations that do serve the public at the location are limited to 15 percent, unless the space qualifies as a live/work unit under the adopted building code.
Violations & Fines
Exceeding the floor-area cap, adding a second nonresident employee, or losing accessory status to the residence can void the home occupation and trigger code enforcement.
Frequently Asked Questions
Can I run a home business from my Longmont house?
How much of my house can a home occupation use?
Sources & Official References
Other rules in Longmont
How Longmont compares: Easiest Cities to Run a Home Business·Compare Longmont to another location·View the Colorado home business overview
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Zoning & Home Occupation Permits in Nearby Cities
How other cities in Boulder County handle zoning & home occupation permits.