FitFactariDC LLC v. CoStar Group, Inc. (CRE Lease-Data Hub-and-Spoke Antitrust Suit)
A commercial tenant's proposed class action claims CoStar was the hub of a rent price-fixing conspiracy, with CBRE, JLL, Cushman & Wakefield, Colliers and Newmark as spokes.
Commercial tenant FitFactariDC LLC filed a proposed class action alleging CoStar Group's lease-comparables platform served as the 'hub' of a Sherman Act price-fixing conspiracy, with CBRE, JLL, Cushman & Wakefield, Colliers, and Newmark as 'spokes' that traded non-public effective rents, concessions, and lease terms through the platform. The complaint claims each 1-point rise in CoStar's market share tracked a 0.3%-0.8% increase in rent per square foot across office, industrial, and retail leases from 2015-2025. An initial status hearing is set for August 19, 2026.
Why it matters: Extends the RealPage-style hub-and-spoke theory from multifamily algorithmic pricing into commercial brokerage data-sharing, naming the industry's largest brokerages as defendants. If the theory survives a motion to dismiss, follow-on suits could sweep in landlords and owners whose brokers submitted lease data to CoStar, mirroring how RealPage litigation expanded to landlord-customers.
