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Nadia L. Costa

Shareholder, Walnut Creek
Tel: 925.935.9400

Nadia L. Costa

Shareholder, Walnut Creek

Tel: 925.935.9400


Nadia Costa is a shareholder in the firm’s Walnut Creek and Newport Beach offices. Her practice centers on land use and local government law, specializing in the processing and implementation of land use entitlements. Nadia has extensive entitlement experience in a wide range of projects, with a particular emphasis on complex, mixed-use, urban in-fill, and master-planned developments. She regularly counsels landowners, developers and public agencies in all aspects of land use processing, including a variety of areas such as compliance with the California Environmental Quality Act (CEQA); obtaining approval of general plan amendments; assisting property owners and agencies in the formation of various special districts including community facilities districts and geological hazard abatement districts (GHADs); specific plans, planned development zoning, and tentative and final subdivision maps; addressing annexation and other local agency formation commission (LAFCO) issues; as well as drafting, negotiating and obtaining approval of agreements dealing with vested rights, public infrastructure, affordable housing and school facilities mitigation.

Nadia is Co-Chair of Miller Starr Regalia’s Land Use Practice Group. She also serves as the Vice-Chair of Programs for the Land Use Committee for the State and Local Government Section of the American Bar Association.


J.D., University of California Berkeley (Boalt Hall) School of Law

M.S.W., University of California, Los Angeles

B.A., University of California, Santa Barbara


  • “What’s Preventing Developers from Developing in California?”, ICSC Northern California Idea Exchange, Napa, CA (October 28, 2013)
  • "Developing the "PDA" (Priority Development Area) of the Sustainable Communities Strategy ", ICSC Northern California Alliance Program, Sacramento, CA (February 21, 2013)
  • The State Bar of California 31st Annual Real Property Law Section Retreat: Speaker, “CEQA: Basics and New Developments”, Lake Tahoe, CA (2012)
  • Land Use Conference: Speaker, Inclusionary Housing in the Wake of Palmer and Patterson, San Francisco, CA (2010)
  • ULI Presentation: Moderator, Reconciling SB 375 and the BAAQMD Guidelines (2010)
  • “CEQA Legislation, Litigation, Mitigation and More”, The Second Annual Seminar on the California Environmental Quality Act, Los Angeles, California (August 2006) and San Francisco, California (September 2006)


  • Co-author, “Inclusionary Housing Programs: Local Governments Respond to California’s Housing Crisis,” Boston College Environmental Affairs Law Review
  • Co-author, “California’s Response to the Affordable Housing Crisis,” American Bar Association Land Use Institute: Planning, Regulation, Litigation, Eminent Domain, and Compensation (ALI, Aug. 25-27, 2005)
  • Co-author, “Recent Developments in Land Use,” The Urban Lawyer: Planning and Zoning, Vol. 35, No. 4 (Fall 2003)
  • Co-author, “Inclusionary Housing Ordinance Survives Constitutional Challenge in Post-Nollan-Dolan Era: Homebuilders Association of Northern California v. City of Napa,” Land use Law & Zoning Digest, Vol. 54, No. 8 (August 2002)


  • American Bar Association (ABA), State and Local Government Section - Council Member
  • Building Industry Association (BIA)
  • California Association of GHADs - Board Member
  • International Council of Shopping Centers (ICSC)
  • Urban Land Institute (ULI)


  • Super Lawyers, Northern California Rising Star - 2011, 2010, 2009
  • “40 Under 40,” East Bay Business Times - July 2006
  • Outstanding Academic Achievement Award, University of California, Los Angeles