Environmental Rules in Santa Monica, CA (2026)
5 verified environmental rules for Santa Monica, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Santa Monica operates a stormwater utility under the municipal code with user fees on all parcels. The city promotes runoff conservation and sustainable management for water sustainability. LID and stormwater harvesting are strongly encouraged.
Santa Monica Stormwater Management Rules
Heavy RestrictionsErosion Control
Santa Monica requires erosion control measures during construction. Excavated soil must be positioned to prevent sediment runoff. Emergency plastic covering allowed for unprotected areas. Detention ponds and infiltration pits required as needed.
Santa Monica Erosion Control Requirements
Some RestrictionsCoastal Development
Santa Monica lies within the California Coastal Zone. A Coastal Development Permit (CDP) from the Coastal Commission is required for most development, as the city does not yet have a certified Local Coastal Program (LCP). Housing projects need CDP before city building permit.
Santa Monica Coastal Development Rules
Heavy RestrictionsFlood Zones
Santa Monica participates in the National Flood Insurance Program and has adopted floodplain management regulations for coastal areas designated as FEMA Zone A. The Director of Public Works serves as floodplain administrator. Sea level rise poses an increasing coastal flood risk to the City.
Santa Monica Flood Zone & Coastal Floodplain Regulations
Some RestrictionsGrading & Drainage
Santa Monica requires adequate grading and drainage for all development. French drain systems with minimum 12x12 inch gravel cross-section required for downspout/gutter connections through curb face. The stormwater utility fee funds the drainage system.
Santa Monica Grading & Drainage Rules
Some RestrictionsLooking for Los Angeles County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Santa Monica city rules.
Environmental Rules in Los Angeles County →