Serrano Development Group, Inc. (SDG) is a multifaceted real estate investment and development company based in Los Angeles. Since its inception in 2005, SDG has developed multifamily, industrial and retail projects throughout the southwestern United States. SDG collaborates with a seasoned team of design professionals, contractors and financial investors to make every project successful.  Drawing from a diverse resume of product types, SDG has extensive project experience.   The construction and engineering background of the partners allows for the development team to tackle complicated projects and collaboratively manage the design process.

SDG consistently implements a development philosophy that integrates input early and often from the design consultants, general contractor, owner and development manager. The principals of SDG own a construction firm, Pacific Empire Builders, an essential tool in this process. In addition to developing its own projects, SDG maintains several strategic joint venture and development clients. Along with turnkey development services, SDG often advises our partners on value-add and stabilized acquisitions.

Our mission is to identify and pursue opportunities in the marketplace that create value for our financial partners and for the end users of our buildings. Our development philosophy is to collaborate with our design and construction partners and to challenge the status quo with the objective of finding and implementing efficiencies that will continuously improve our projects.


Jason Tolleson and Dan Mahoney are the co-founders and executive officers of Pacific Empire Builders (general contracting services) and affiliated companies Serrano Development Group (development services) and Serrano Asset Management (asset and property management). Pacific Empire Builders and Serrano Development Group incorporated in 2005.  Serrano Asset Management commenced operations in 2013. Headquartered in Glendale, CA, the trio of Pacific Empire Builders, Serrano Development Group and Serrano Asset Management provide full service real estate development, construction and asset management services for its principals, partners and clients on residential and commercial projects in the Greater Los Angeles Area and select locations throughout the United States.
JASON began his career focused on the technical aspects of building by working as a Structural Engineer for the Parsons Corporation on US Army Corps of Engineers Demilitarization Projects, then as a Project Manager for Opus West Corporation. At Opus, Jason focused on the construction of ground-up commercial and industrial projects in the San Francisco Bay Area.  Jason is a licensed Professional Engineer and General Contractor in the State of California. He holds a Bachelor of Science degree in Civil Engineering from the University of California at Berkeley and a Masters of Business Administration from UCLA Anderson School of Management.

Jason Tolleson

Co-Founder, Principal

Dan Mahoney

Co-Founder, Principal

DAN began his career as a Project Controls Engineer on multiple environmental cleanup and civil infrastructure projects around the United States with Bechtel Corporation, a global leader in engineering, construction and project management.  Prior to his graduate studies, Dan also spent time working as a manufacturing plant supervisor for a family business, Sioux City Brick Company in Sioux City, Iowa.  Dan is a licensed Professional Engineer and Real Estate Broker in the State of California.  He is active on the Sioux City Brick Board of Directors, Housing Committee and Board of Directors for Skid Row Housing Trust and several homeowner’s association boards in Los Angeles, CA. Dan holds a Bachelor of Science in Environmental Engineering Summa Cum Laude from California Polytechnic State University San Luis Obispo and a Master of Business Administration from UCLA Anderson School of Management.


Contact Us

24 N. Marengo Avenue
Pasadena, CA 91101


310 264 9933