Environmental Rules in Greeley, CO (2026)
5 verified environmental rules for Greeley, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Greeley requires permanent stormwater water-quality control measures for new development disturbing an acre or more, under Municipal Code Ch. 20-4.
Greeley Stormwater Control Rules
Some RestrictionsGreeley Municipal Code § 20-633
The owner or developer of any new or existing development that involves land disturbing activity...that is: (1) Equal to or greater than one acre; or (2) Less than one acre if the construction activities are part of a common plan of development or sale...must design, construct, install, perform inspections on, and maintain in perpetuity control measures that prevent or minimize water quality im...
Erosion Control
Greeley requires a city grading permit for land-disturbing work of one acre or more, smaller sites that are part of a common development plan, or any site risking harm to stormwater systems.
Greeley Grading Permit Acreage Threshold
Some RestrictionsGreeley Municipal Code § 12-194
(a)Grading permit. A city grading permit is required for any development involving land disturbing activity that is:(1)Equal to or greater than one acre;(2)Less than one acre if the construction activities are part of a common plan of development or sale within the city; or(3)An area of any size that, due to the nature of its topography or location, provides a potential for negative impact on t...
Flood Zones
Any construction or development within Greeley's mapped floodplain overlay district, from grading to new buildings, needs a floodplain development permit before work starts, reviewed by the city's floodplain administrator for flood-hazard compliance.
Greeley Floodplain Development Permit Required
Significant RestrictionsGreeley Municipal Code § 24-1001(c)
A floodplain development permit shall be required before construction or development (as those terms are defined in section 12-1204 of this Code) within the floodplain overlay district. Refer to section 12-1206 of this Code for floodplain development permit requirements.
Vehicle Idling Restrictions
In Greeley, an unattended vehicle, one that hasn't moved and has no licensed driver in it, cannot idle more than 20 minutes after the engine starts, whether started by key, remote starter, or otherwise, under § 16-388(d).
Greeley Unattended Vehicle Idling Limit
Some RestrictionsGreeley Municipal Code § 16-388(d)
(d)No person shall allow an unattended motor vehicle to remain idling for more than 20 minutes from the time the motor was started, by remote starter or other means. As used in this subsection, the term "unattended" means that the vehicle has not moved from its original position and has not been occupied by a person possessing a valid driver's license. (Code 1994, § 11.01.1206; Ord. No. 80, 19...
Flood Elevation Requirements
Greeley requires new and substantially improved buildings in mapped flood hazard areas to elevate the lowest floor and all mechanical equipment one foot above the base flood elevation: two feet for critical facilities like schools and fire stations.
Greeley One-Foot Flood Freeboard Rule
Some RestrictionsGreeley Municipal Code § 12-1211(a)
New construction and substantial improvement of any residential structure shall have the lowest floor (including basement) electrical, heating, ventilation, plumbing, and air conditioning equipment and other service facilities (including ductwork) elevated to one foot above the base flood elevation.
Looking for Weld County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Greeley city rules.
Environmental Rules in Weld County →