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Mesa County, CO Noise from Specific Sources: HVAC & Mechanical Noise (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing section
LDC § 8.05.A(3)
Requirement
Incorporate HVAC into building/landscape design
Screening
Hidden from all property lines
Decibel limit
None set for HVAC specifically
Applies to
Nonresidential and multi-family sites only

Summary

Mesa County does not set a decibel limit for HVAC units, but it does require them to disappear into the site design. Section 8.05.A.3 of the Land Development Code requires outdoor HVAC equipment on commercial and multi-family sites to be incorporated into the building and landscaping design and screened from every property line.

These county ordinances apply to unincorporated areas of Mesa County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

3. Outdoor storage, HVAC equipment, trash collection, trash compaction, and other service functions shall be incorporated into the overall design of the building and the landscaping plan. Views of these areas shall be screened from visibility from all property lines and separated from pedestrian areas.

Full Breakdown

05, 'Outdoor Storage, Trash Collection and Loading Areas,' applies in every Nonresidential and Multi-Family Residential zoning district in unincorporated Mesa County. 3 groups HVAC equipment with outdoor storage, trash collection, trash compaction and other service functions, and requires all of them to be incorporated into the overall design of the building and the landscaping plan, not bolted on as an afterthought. The same subsection requires that views of these areas, including HVAC condensers and compressors, be screened from visibility from all property lines and kept separated from pedestrian areas, so a rooftop or side-yard unit visible from a sidewalk or an adjoining lot does not meet the standard on sight lines alone.

rule; the HVAC standard is purely a screening and design-integration requirement, reviewed by Community Development on the site plan or landscape plan before a permit issues. 05; the HVAC screening rule applies to commercial, retail and multi-family development only.

Violations & Fines

Community Development checks HVAC screening and design integration at site-plan review, and Code Compliance Services can require retrofitted screening, fencing or landscaping for a completed commercial or multi-family project where mechanical equipment remains visible from a property line or a pedestrian area, holding up final approvals until the screening is installed.

Frequently Asked Questions

Does Mesa County set a noise limit for HVAC units?
No numeric decibel limit applies to HVAC equipment specifically. Section 8.05.A.3 of the Land Development Code only requires HVAC units on commercial and multi-family sites to be incorporated into the building and landscaping design and screened from every property line; the county's 45-decibel standard in the same section applies to delivery and trash operations, not mechanical equipment.
Do homeowners have to screen their AC unit in Mesa County?
Section 8.05, which contains the HVAC screening requirement, applies only in Nonresidential and Multi-Family Residential zoning districts, so a single-family homeowner's residential air conditioning unit on an individual house is not covered by this particular section of the Land Development Code.
Where does HVAC equipment have to be screened from in Mesa County?
Section 8.05.A.3 requires that views of HVAC equipment be screened from visibility from all property lines and separated from pedestrian areas, meaning the unit has to be hidden from neighboring lots, the street, and any walkway, not just from the building's main entrance.

Sources & Official References

Other rules in Mesa County

All Mesa County rules

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