Oscar, partner at Barros & Errázuriz, has more than 25 years of experience in legal advice for the development of real estate, industrial, road and energy projects. He is legal advisor of real estate projects of all kinds, accompanying his clients in the analysis of their locations, structuring of the business, financing, construction, permits, real estate co-ownership, and the commercialization thereof, which is reflected in long-term clients at our firm.

Within his real estate area of practice, he has developed a special area of territorial planning, urban and environmental regulation, acquiring an important role in the national real estate market in administrative matters, land planning and management and urban regulation, advising energy, real estate, commercial, industrial and sanitary companies in these matters.

Practice Areas


  • Law School, Universidad Diego Portales, Santiago, Chile (1995)
  • Master of Laws (LL.M), Public Policies and Environmental Management, Universidad Carlos III, Madrid, Spain (2000)
  • Diploma in Environmental Law and Competitive Business, Universidad de Chile, Santiago, Chile (2002)
  • Diploma in Economic Administrative Law, Pontificia Universidad Católica de Chile, Santiago, Chile (2004)

Professional Experience

  • Partner, Barros & Errázuriz (2001)
  • Foreign Partner, Ministry of Environment of Spain, Madrid, Spain (2000)
  • Associate, Jara, Del Favero y Cía. (1997)
  • Associate, Puelma y Cía. (1995)

Academic Activities

  • Professor, Urban Development Law,Pontificia Universidad Católica, Santiago, Chile (2017 – to date)
  • Professor, Urban Development Law, Universidad Adolfo Ibáñez, Santiago, Chile (2016 – to date)
  • Professor, Urban Development Law, Universidad de los Andes, Santiago, Chile (2010 – to date)
  • Professor, Environmental Law, Universidad Alberto Hurtado, Santiago, Chile (2003 – 2008)


  • Spanish
  • English


  • Member of the Chilean Bar Association
  • Member of the Chilean Chamber of Construction
  • Member of the Official Chamber of Commerce of Spain

Final Acknowledgments

  • Band 4, Chambers Latin America 2021, Chile, Real Estate