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THE RISE OF PARTIAL-INTEREST TRANSACTIONS IN INSTITUTIONAL OFFICE

Western Region Capital MarketsApril 30, 2026

Introduction

Across the institutional office landscape, a distinct transaction category has gained meaningful momentum: the partial-interest transfer. These transactions include individual investors selling limited partner (LP) positions, individual lenders in a loan syndicate liquidating their positions, existing owners bringing in joint venture partners or “rescue” capital, and even fee simple owners selling their position in a ground lease in a collapsed structure to maximize value of the combined real estate. These transactions offer a targeted entry point into generational assets — often at a basis that would be difficult to replicate in an outright sale. The larger the asset, the greater the number of participant investors or lenders, and the higher the degree of complexity all correlate with the possibility of a partial-interest transaction.

Two recent Colliers-led engagements illustrate the breadth of this structure: an equity interest in Pacific Coast Towers (PCT), a 1.6 million square foot Class A campus in El Segundo, California, and a debt interest in the first-mortgage secured by 999 Third Avenue, a 985,958 square foot Class A tower in downtown Seattle. Taken together, these deals point to a broader shift in how institutional capital is accessing — and exiting — complex office positions.

About Author(s)

Sean Fulp | Vice Chair, Los Angeles
Sean serves as Vice Chair and Head of Office Capital Markets | U.S. Southwest at Colliers, where he leads the Western Region office investment sales practice. Throughout his career, he has completed over 500 transactions totaling more than $7 billion in consideration. Prior to Colliers, Sean led the Newmark Private Capital Group and previously served as Managing Director and Head of Western U.S. Investment Sales at Rockwood Real Estate Advisors. He earned his B.S. in Business Administration from California State University, Sacramento.

Mark Schuessler | Executive Vice President, Los Angeles
Mark serves as Executive Vice President with Colliers' Western Region Office Capital Markets team. Over the course of his career, he has closed more than 150 transactions totaling over $3 billion, with deep expertise across both stabilized and distressed assets. Prior to joining Colliers in 2022, Mark was a Managing Director at Newmark, where he helped build the top-producing private capital group in Los Angeles for office and industrial investment sales. Earlier in his career, he was a senior member of the specialized dispositions team at CWCapital in Washington, D.C., facilitating the sale of more than $3.9 billion of REO properties and non-performing CMBS loans. Mark holds a B.A. in Economics from Bucknell University.

Todd Tydlaska | Executive Vice President, Los Angeles
Todd brings over 20 years of commercial real estate experience to Colliers, specializing in the sale, recapitalization, and financing of investment properties for institutional and private clients, lenders, special servicers, and developers. Over his career, he has been involved in the listing and capitalization of more than $35 billion of office, industrial, life science, data center, self-storage, land, and studio product across the West Coast.Todd joined Colliers in 2025 as a partner on the firm's Office Capital Markets team after a long tenure at CBRE, where he was a lead member of the office investment sales and global capital markets teams. He earned his B.A., Cum Laude, in Communications and Business from UCLA and serves on the ULI Office Development Council Leadership Team and Los Angeles Capital Markets Council.

Blake Hammerstein | Associate Vice President, Los Angeles
Blake serves as Associate Vice President with Colliers' Western Region Investment Sales team, where he represents private and institutional investors, family offices, and lenders in the sale of office buildings throughout the Western United States. Based in Los Angeles, he focuses on transaction execution and provides the in-depth analytical support that drives successful outcomes for clients across the team's pipeline. Prior to Colliers, Blake joined the Newmark Private Capital Group as a Financial Analyst in 2021, with earlier internships at LA Realty Partners and Lincoln Property Company. A Manhattan Beach native, he played Division I baseball at Hofstra University before transferring to the Leeds School of Business at the University of Colorado Boulder, where he earned a BSBA in Real Estate.

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