Zillow’s ‘simplified’ listing standards make the MLS optional
Alongside its March 17 launch of Zillow Preview, the company published updated, more flexible listing rules to reflect the “reality” of “the listing landscape.”
Key points:
- Zillow’s Listing Access Standards, originally unveiled in April 2025, have been revised to focus on broad access rather than timing or MLS requirements.
- The updates, Zillow said, were driven by shifts in the “the listing landscape” over the past year, including major acquisitions and MLS rule changes.
- One notable revision? Listing brokers can make their listings “broadly accessible” — a key tenet of the updated policy — without adding them to the MLS.
Nearly a year ago, Zillow took a definitive stand on listings transparency — a topic the company's leadership had been vocal about for months — announcing new Listing Access Standards barring certain types of pre-marketed listings from its websites.
The policy prohibited listings that had been publicly promoted to consumers but not made widely available via the MLS. That included Compass listings that had gone through the first two phases of the brokerage's 3-phased marketing strategy: Private Exclusives and Coming Soons.
The industry response was swift, with some brokerages endorsing the move and others condemning it. Compass went a step further, suing Zillow last June, but the search giant stood firm, vigorously defending its policy and stance on private listings.
But an announcement this week — alongside an update to those listing standards — suggests that Zillow is willing to adjust its approach.
Zillow's big shift
On March 17, Zillow unveiled a new product, Zillow Preview, that would allow participating brokerages to display pre-market listings exclusively on Zillow websites (and their own brokerage sites) — as long as they still complied with local MLS rules.
Behind the scenes, the company also revised its Listing Access Standards. In a blog post published that same day, Zillow said its "focus on the importance of a transparent real estate market hasn't changed" — but "the listing landscape around it has evolved over the past year, and we're updating our standards to reflect that reality while staying true to the same consumer-first approach we've had since our founding."
The three main factors driving that evolution, according to Zillow, are acquisitions by "brokerages that aim to proliferate hidden listings in private listing networks"; decisions by some MLSs to relax their rules "to the detriment of consumers"; and a more consolidated, less competitive marketplace that disadvantages some agents and brokers.
"At the same time," Zillow added, "agents have consistently told us they want tools to build interest in a home before it officially goes active — while still reaching a broad pool of buyers" — something Zillow Preview aims to provide.
How Zillow modified its listing policy
The updated listing standards have been "simplified" and "designed to give agents flexibility," Zillow said. These are some of the key changes:
No mention of specific timing. The original standards required listings to be added to the MLS within one business day of publicly marketing the property. The updated standards do not include any timelines.
Listing on the MLS is optional: Not only has the 24-hour requirement been removed — agents can skip the MLS altogether. As long as the listing is "broadly accessible to the general public in a manner that provides open access," an agent can go with the MLS or choose a different option, such as a public-facing website or home search portal.
'Public marketing' definition removed: Before the update, the standards included a long list of tactics that qualified as "public marketing," such as yard signs, social media, public-facing websites and open houses. The new standards omit this list, instead focusing on the concept of "broad access."
'Gated' marketing not allowed: The old standards prohibited selective marketing, but that rule was tied to Zillow's now-removed definition of public marketing.
The updated standards address the same issue but target specific brokerage marketing strategies, stating that if consumers must "work with the listing brokerage to get access to the listing" — such as having to register to see listings or reach out to a brokerage directly for access to its private listing network — it fails to meet the "broadly accessible" test and will not be displayed on Zillow.
Reframing 'private listings': Both the original and revised standards allowed for truly private listings that had been shared only within a brokerage or explicitly kept private at the request of the seller.
But the updates clarify that if pseudo-private listings, or even "the existence of a broker's exclusive inventory of listings" were ever marketed to consumers via a private listing network or behind a registration wall, they will not be permitted.