Zillow Targets 'Hidden' Listings with New 'Preview' Pre-Market Platform

SEATTLE, WA – March 17, 2026 – Zillow is taking direct aim at one of the real estate industry's most controversial practices with the launch of Zillow Preview, a new product designed to bring so-called 'hidden' home listings into the public eye. Announced today, the platform will give homebuyers a first look at properties before they officially hit the active market, a move the company says will increase transparency and fairness in a tight housing market.

The initiative, set to launch next month, is backed by an impressive roster of real estate powerhouses, including Keller Williams, REMAX, HomeServices of America, Side, and United Real Estate. These pre-market listings will be displayed exclusively on Zillow and its sister site Trulia, as well as on the participating brokerage and agent websites, creating a new, powerful channel for early inventory.

"For 20 years, Zillow has been guided by a simple idea: Real estate works best when information is open and accessible," said Zillow Chief Executive Officer Jeremy Wacksman in the announcement. "Zillow Preview shines a light on listings that might otherwise stay hidden, giving buyers open access to their options and sellers the broad exposure they deserve."

Dismantling the 'Pocket Listing' Wall

At the heart of Zillow's new strategy is the long-simmering debate over 'pocket listings' and off-market 'coming soon' properties. For years, some agents have kept listings off the broader Multiple Listing Service (MLS), marketing them privately within their brokerage or to a select network of clients. Proponents argue this protects seller privacy and allows for market testing. However, critics, including fair housing advocates, contend the practice creates an inequitable, two-tiered system that limits seller exposure and can prevent them from achieving the highest possible price, while potentially excluding qualified buyers.

The National Association of Realtors (NAR) has attempted to address this with its Clear Cooperation Policy, which requires listings to be submitted to the MLS within one business day of any public marketing. Zillow Preview is designed to work within this framework, providing a compliant way for agents to generate buzz while ensuring the listing is publicly visible, not confined to a private network.

By bringing these pre-market homes out of the shadows, Zillow is positioning itself as a champion for consumer transparency. The move challenges the information gatekeeping that has defined off-market sales, leveraging its massive audience of 235 million monthly unique users to force a new level of openness.

A New Power Play in Real Estate

Beyond its consumer-facing mission, Zillow Preview represents a significant strategic realignment between the tech giant and traditional brokerages. The partnership with industry leaders like Keller Williams and REMAX signals a shift toward deeper collaboration, centered on a new, compelling value proposition for agents.

Participating agents receive a suite of benefits designed to be highly attractive. Preview listings will get elevated placement in Zillow's search results and saved-home alerts, ensuring greater visibility. Furthermore, when a buyer contacts a listing agent directly through the Preview platform, that connection is provided free of charge to the agent.

Perhaps the most powerful incentive is a new revenue-sharing model. If a buyer lead generated from a Zillow Preview listing results in a closed transaction with a Zillow Preferred agent, the original listing agent may receive a share of the revenue Zillow earns. This referral fee, paid by Zillow, creates a financial incentive for listing agents to participate, aligning their interests with Zillow's and turning a pre-market listing into a potential new revenue stream.

This structure explains the enthusiastic support from partner brokerages. "REMAX has long believed that transparency and the broadest distribution of listings gives buyers and sellers the best outcome," said Erik Carlson, CEO of REMAX. Similarly, Gary Keller, executive chairman of Keller Williams, noted, "As an independent company, we support efforts that make the real estate marketplace more transparent."

The Consumer Question: More Access, But More Competition?

While Zillow frames Preview as an undeniable consumer victory, its ultimate impact on the market, particularly regarding affordability, remains a complex question. In a housing market plagued by severe inventory shortages, giving millions of buyers early visibility of upcoming homes could have unintended consequences.

On one hand, the benefits are clear. Buyers gain access to a wider pool of potential homes and more time to prepare offers, arrange financing, and schedule tours. This combats the frustration of seeing a perfect home listed and sold within hours.

On the other hand, increased early visibility could intensify competition for the most desirable properties. By shining a spotlight on a home before it even officially lists, Preview could concentrate demand and fuel bidding wars earlier in the process. While the platform increases the visibility of supply, it does not increase the physical supply of homes for sale. For buyers already struggling with high prices, the prospect of even more competition, arriving even sooner, could be daunting.

"Transparency is what is best for our industry, and this partnership with Zillow creates an ideal mechanism to generate broader visibility and awareness of a listing to the marketplace," said Chris Kelly, President & CEO of HomeServices of America. The hope is that this broader visibility creates a more efficient and fair market for all parties involved.

Zillow Preview is designed to ensure that what's coming to market is visible to everyone, publicly and for free. As it rolls out, the industry will be watching closely to see if shining a brighter light on the housing market helps more people find a home, or simply makes the competition more intense.