P: (310) 273-6378
F: (310) 859-2325

Mr. Riker’s practice focuses on land use law, municipal advocacy and California Environmental Quality Act (CEQA) compliance.

He has assisted numerous real estate developers and property owners in obtaining zoning approvals, conditional use permits and other land use entitlements. He has conducted land use and environmental due diligence for perspective real estate purchasers and has assisted property owners in removing a variety of code violations imposed by local government agencies. Jonathan is a recognized local CEQA expert and serves as an environmental law instructor with the UCLA Extension Public Policy Program.

Jonathan started his legal career at a boutique land use and environmental firm in Los Angeles, where he focused on due diligence research, land use entitlements and CEQA clearance. He has also served as an expert consultant for ICF International—a global environmental consulting firm, where he advised government agencies on compliance with CEQA and other environmental laws. Prior to practicing law, Jonathan was a planner with the Los Angeles City Planning Department, where he coordinated environmental review for large-scale developments, including a number of high profile mixed-use and multifamily housing projects. As a result of his experience, he gained inside knowledge of the city’s environmental and land use approval processes.

Jonathan obtained his J.D. from Tulane Law School and his B.A. from Columbia University. After finishing law school, he became the Co-Director of a legal non-profit organization in New Orleans, focused on juvenile law. He is an advocate of sustainable development practices and in 2008 became one of the first attorneys in Los Angeles to become an Environmental Design Accredited Professional (LEED AP). He has written about the topic in Los Angeles Lawyer magazine and other publications. Jonathan has volunteered with Public Counsel, a pro-bono law firm in Los Angeles, where he served on the Land Use Committee.



  • J.D., Tulane Law School
  • B.A., Columbia University

Bar Admissions

  • California