Markus Kastenholz

Markus Kastenholz serves as a Broker at the PBS R00 Center for Broker Services within the General Services Administration’s Public Buildings Service, where he facilitates the acquisition and leasing of nonresidential real estate to support federal workspace requirements. In this capacity, he acts as a critical liaison between federal agencies and commercial property owners, managing the full lifecycle of lease transactions—from market analysis and property identification to negotiation and contract execution. His role is central to optimizing the federal footprint by securing efficient, secure, and cost-effective office and nonresidential spaces across the United States, ensuring alignment with GSA’s strategic real estate goals. Kastenholz maintains consistent working relationships with a select group of institutional real estate entities, including TWO CON LLC, ONNI TIMES SQUARE LP, CVD MAIN LLC, BELTSVILLE GSA FDA LLC, and CC OWNER LLC. These partnerships are primarily transactional in nature, focused on the acquisition of existing commercial properties for federal occupancy rather than new construction. His procurement approach emphasizes established market participants with proven track records in managing large-scale, multi-tenant commercial assets, reflecting a preference for reliability and operational continuity in lease execution. His contracting activity shows no use of socioeconomic set-asides, with 100% of acquisitions conducted under full and open competition. This reflects a strategic emphasis on market-wide access and competitive pricing rather than targeted small business preferences, aligning with the agency’s priority of maximizing value through broad market engagement. Kastenholz’s procurement focus is concentrated in NAICS 531120 (Lessors of Nonresidential Buildings) at 66.7% and NAICS 531190 (Lessors of Other Real Estate Property) at 33.3%. He specializes in leasing office space, medical and administrative facilities, and other nonresidential properties, demonstrating deep expertise in commercial real estate leasing, property condition assessments, and federal lease compliance under GSA’s Real Property Acquisition and Management guidelines.