Marianne Lowenthal is the founder and principal of Granadier Co., a Los Angeles-based real estate development firm focused on infill and mixed-use projects that enrich the urban fabric of Southern California. With over 35 years of experience in real estate development—including 17 years as Head of Development at Combined Properties—Ms. Lowenthal has led the creation of some of the region’s most iconic destinations, including the award-winning Pendry West Hollywood and The Culver Steps. Her work reflects a commitment to pedestrian-friendly design, the integration of outdoor environments, and the delivery of distinctive, experience-driven spaces that resonate with both residents and the surrounding community.

Ms. Lowenthal is known for her expertise in securing complex land-use entitlements, structuring joint ventures, and overseeing every phase of development - from acquisition and conceptual design to construction, financing and operations. Her project portfolio spans high-profile hotels, residential communities, retail centers, and public-private partnerships, consistently maximizing value through thoughtful placemaking and strategic execution. Granadier Co. builds on this legacy, creating exceptional developments that reflect Southern California’s dynamic spirit and evolving urban needs.

Granadier Co. was established to provide real estate and development expertise to private companies and institutions that don’t have the experience to navigate complicated entitlements, design, financing and construction. Through partnerships and advisory services Granadier Co. provides a full service solution to maximize the value of underutilized real estate and create vibrant living spaces.