City of Los Angeles Stormwater Program > Green LA > Low Impact Development > FAQs > How is LID different from the Standard Urban Mitigation Plan (SUSMP)?

How is LID different from the Standard Urban Mitigation Plan (SUSMP)?

The LID Ordinance requires stormwater mitigation for a larger number of development and redevelopment projects than was previously required under SUSMP. All development and redevelopment projects that create, add, or replace 500 square feet or more of impervious area need to comply with the LID Ordinance.