A federal judge in New York denied Compass’s request for a preliminary injunction, allowing Zillow to continue enforcing its Listing Access Standards while the broader antitrust lawsuit moves forward.
The decision means Zillow’s display rules remain active for now and directly affect how listing visibility, pre-marketing timelines, and exposure strategies are structured in markets like Philadelphia.
Court Ruling Keeps Zillow Policy in Force
The court concluded Compass did not demonstrate a likelihood of success on the merits at this stage of the case.
In the order, the judge found the record did not show Zillow has the power to exclude competition from online home search. The ruling also noted that even assuming Zillow holds a market share between 50% and 66%, Compass did not establish monopoly power under antitrust standards.
Zillow characterized the decision as support for policies intended to provide equal access to listing information. Compass stated the litigation continues, with CEO Robert Reffkin saying the ruling does not resolve the underlying dispute.
For related background, see the judge’s rejection of Compass’s request to block Zillow’s private listing rule.
What the Standards Require
Zillow’s Listing Access Standards require that a residential property publicly marketed to consumers must be entered into the MLS within one business day in order to appear on Zillow’s platforms.
The rule is designed to mirror the National Association of REALTORS Clear Cooperation Policy, which also requires MLS submission within one business day after public marketing begins. However, Zillow separately controls whether listings appear in its search results.
Compass operates a three-phase marketing approach that moves properties from private exclusive marketing to coming soon status and then to the MLS. Extended off-MLS marketing periods conflict with Zillow’s display requirements because listings marketed publicly for longer than one day without MLS entry become ineligible for display on the platform.
Operational Impact in Philadelphia
In practice, listings marketed publicly but kept off the MLS beyond one day will not appear in Zillow search.
That affects strategies such as price testing, phased exposure, pre-MLS marketing campaigns, and tenant-occupied sales where timing coordination matters. Owners and managers planning staggered marketing rollouts will need tighter scheduling between photography, advertising, agent outreach, and MLS submission.
For condo resales and occupied rental dispositions, the inability to rely on extended private-exclusive marketing while maintaining Zillow visibility changes how showings and launch dates are sequenced.
Workflows that previously assumed multi-week private marketing periods may require revision to maintain maximum exposure.
Coordinating With MLS Options Under MLOS
A newer framework called Multiple Listing Options for Sellers allows MLSs to offer delayed marketing choices where sellers can instruct agents to delay public internet display for a defined period.
Those local MLS options operate independently from Zillow’s platform requirements. Even if an MLS permits delayed display, Zillow can still exclude listings that were publicly marketed but not entered into the MLS within one day.
Because of this, listing agreements, disclosure forms, and marketing timelines must align so seller-requested marketing delays do not unintentionally remove the property from major consumer search platforms.
What to Watch
The ruling addresses only the preliminary injunction request and is not a final decision in the antitrust case. The litigation will continue, and policies could change depending on future court findings, settlements, or platform revisions.
MLS implementation of Multiple Listing Options for Sellers may also evolve, and local rule interpretations could affect how delayed marketing interacts with third-party search visibility.
For now, brokers, property managers, and owners should plan listing timelines assuming Zillow’s one-day MLS publication requirement remains in effect and coordinate communication with clients accordingly.