Environmental Rules in Littleton, CO (2026)
4 verified environmental rules for Littleton, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Littleton will not issue a construction, redevelopment, grading, or occupancy permit until the site meets the Littleton Storm Drainage Ordinance's design standards. Owners must post a bond, letter of credit, or cash escrow covering 125% of estimated stormwater infrastructure costs, and the Director of Public Works holds the bond until final site stabilization is inspected and approved.
Littleton Stormwater Permit and Drainage Rules
Some RestrictionsLittleton City Code § 7-7-9
A. No permits for new construction activity, redevelopment, grading, nor a certificate of occupancy shall be issued by the City until and unless the owner of the site complies with the storm drainage design and construction requirements outlined in section 7-7-6 of this chapter. ... B. Permit issuance shall include, but not be limited to, the posting of a bond, letter of credit, or cash escrow ...
Erosion Control
Littleton requires a Grading Permit before any grading, land-disturbing activity, or alteration of land begins, specifically to cut erosion and sediment problems from increased urban runoff. The City Engineer reviews every application against drainage-pattern and neighboring-property impact standards before issuing it.
Littleton Grading Permit for Erosion Control
Some RestrictionsLittleton City Code Section 10-9-6.5
A. Generally. ... A Grading Permit helps to reduce both erosion and sediment problems resulting from an increase of urban runoff from developed land. ... 1. Required. A Grading Permit shall be required, per the Littleton Storm Drainage Design and Technical Criteria Manual to ensure compliance with all provisions of this Code before any permit is issued or any improvement, grading, land-disturbi...
Flood Zones
Littleton bars solid waste facilities, outdoor storage and habitable structures in its flood fringe, prohibits any increase in base flood elevation on insurable structures, and requires a FEMA Conditional Letter of Map Revision plus a Planning Commission hearing before certain floodway-undefined development can proceed.
Littleton Floodplain Development Restrictions
Significant RestrictionsLittleton, CO Unified Land Use Code § 10-7-1.5.B, C.2 (Floodplain/Flood Fringe Regulations)
B. Permitted Uses. ... Any use permitted in the applicable zoning district may be allowed subject to full compliance with this Chapter and other applicable requirements, except for solid waste disposal facilities such as junkyards, sanitary landfills, and automobile wrecking yards; outdoor storage of any material; or tents, makeshift structures, enclosures, or other shelters used for human habi...
Flood Elevation Requirements
Littleton requires a minimum one-foot freeboard clearance between the base flood elevation and the lowest floor, including basement, of new or substantially improved structures near the floodplain, rising to three feet in shallow-flooding FEMA zones with no mapped depth number.
Littleton Base Flood Elevation Freeboard Rule
Some RestrictionsLittleton, CO Unified Land Use Code § 10-7-1.5.E.4, G.1-2 (Floodplain/Flood Fringe Regulations, Freeboard)
4. Freeboard. ... A minimum vertical clearance of one foot shall be provided between the floodplain elevations and the lowest floor (including basement) of all new or substantially improved structures within or immediately adjacent to the floodplain, and other applicable facilities which may be impacted by the floodplain freeboard is required to allow for uncertainty in the floodplain modeling,...
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County ordinances apply to unincorporated areas and may supplement Littleton city rules.
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