Colby Durnin

Chief Executive Officer, Principal


Colby Durnin is the founder and CEO of Sentinel Development Services, Inc. and Sentinel Property Services. Sentinel is a development and development management services company founded in 2001 that focuses on opportunistic and distressed real estate investments that we believe offer attractive risk-adjusted returns.


Over the last 11 years, Mr. Durnin and Sentinel have been involved in the full spectrum of development or redevelopment of assets in excess of $1.5 billion dollars. These projects have included Hospitality, Retail, Master-planned Resort, Mixed-Use, Industrial, Multi-Family, and Senior Living projects. Some of the more notable projects include Turtle Bay Resort, Pacific Edge Hotel, Kaleidoscope, Village Square, Center Pointe Industrial Park, and the LifeHouse Retirement Portfolio. Prior to starting Sentinel, Mr. Durnin was the Director of Special Projects for Keller CMS. Prior to Keller CMS, he was a founding partner of Vortex Construction and Vortex Development. He started his career working for Pacific Energy Management Company as an Owner’s Representative in Baja California.


Mr. Durnin holds a BA from the University of San Diego, MBA from the University of Hawaii, and is a licensed California Real Estate Broker. His projects were previously awarded the NAIOP Hawaii 2003 Commercial Renovation of the Year Award, Builder Institute of America Hawaii 2003 Renovation of the Year Award.