Private Listings vs. the Open MLS: What This Week’s Court Fight Means for California Sellers

If you list a home in California this fall, there is a good chance someone offers to market it quietly first — as a “private exclusive,” a “coming soon,” or an office exclusive that never reaches the MLS. That pitch is now the center of a federal court fight, and two things moved this week.

What happened this week

• ·On September 15, 2026, U.S. District Judge John Tharp Jr. in the Northern District of Illinois dissolved the order that had preserved Zillow’s access to Midwest Real Estate Data’s listing feed and sent the dispute to arbitration, finding Zillow had not made the required strong showing that MRED and Compass ran an illegal group boycott (Real Estate News, September 15, 2026)
• ·Judge Tharp wrote that “while the loss of access to listing feeds would undoubtedly harm Zillow, it will only experience such harm if it attempts to enforce its listing standards” (as reported by Claims Journal, September 17, 2026)
• ·Two days later, Zillow and Realtor.com said Zillow’s “Preview” early-access listings would appear on both sites with “no special login or brokerage relationship required” (Real Estate News, September 17, 2026)

None of this changes what a California seller may do. It does show how hard two of the largest players are fighting over who sees your home first.

What “off-MLS” means in California

The MLS is the shared database that pushes your listing to every agent in the area and out to the public portals. Keeping a home off it is a decision that requires your signature, not your agent’s.

Under California MLS rules, a broker has three days after signatures to either input the listing or submit a seller-signed exclusion, and for an office exclusive “the listing broker shall submit to the service a certification signed by the seller that the seller does not authorize the listing to be disseminated by the service” (Contra Costa Association of Realtors, summarizing MLS Rules 7.5 and 7.6).

So if a listing is going to stay private, you will be asked to sign a form saying so. Read it. That form is the whole decision.

The research disagrees — here is all of it

• ·Zillow analyzed 2.72 million sales from 2023 and 2024 and reported that sellers who skipped the MLS left more than $1 billion on the table, with the typical off-MLS home selling about 1.5% below comparable MLS-listed homes, a median of nearly $5,000 (Zillow research, published February 18, 2025)
• ·Compass reported the opposite: a study of 70,809 of its own closed transactions listed between April 1, 2025 and March 31, 2026 found sellers using phased private marketing got 4.6% higher prices (95% confidence interval 4.2%–4.9%) and went under contract 34% faster (Compass, July 24, 2026)
• ·The San Francisco Association of Realtors and RealReports studied San Francisco County sales from 2022 through 2024 and found MLS-listed homes sold for roughly $302,000 more on average — about 18.6% — than off-MLS sales, with the MLS share of sales rising to 83.2% in 2024 from 79.8% in 2022 (published November 6, 2025)

Every one of those studies was published by an organization with a stake in the answer, and they measure different things. The San Francisco figure is an average gap between two different sets of homes, not a like-for-like adjustment, and the Compass finding covers Compass listings in Compass markets. We will not tell you which predicts your sale, because no one honestly can.

What survives the disagreement is simple. The open MLS is the only channel where every agent and every buyer sees your home on day one; a private listing trades some of that audience for control over timing and privacy. A privacy concern or a tenant situation is a real reason to make that trade. “Let’s test the market quietly” is a strategy someone should have to defend to you.

Three questions before you sign an exclusion

• ·How many buyers actually see a private listing at this brokerage, compared with the MLS and the portals?
• ·If it does not sell privately, when does it go on the MLS — and does the quiet period make it look stale later?
• ·Does the brokerage earn more if the buyer also comes from inside the brokerage?

San Francisco County simply has the most detailed public study. The choice is identical in Sacramento, Fresno, Bakersfield, Riverside and San Diego: full exposure on day one, or a smaller audience first. And exposure does not set your price on its own — pricing does most of that work, which is covered in how to price your California home to sell, while the commission rules behind this whole fight are in the NAR settlement, explained for California sellers.

The number that is actually yours to set

You do not control how Zillow, Compass and the MLSs settle this. You do control what selling costs you.

A traditional listing-side commission of about 3% runs roughly $30,000 on a $1,000,000 home. Guided Home Realty lists your home on the same MLS every agent uses, with a licensed California broker, for a flat $999 at MLS launch (non-refundable) plus $5,000 from escrow when it closes — $5,999 total instead of a percentage. Against a traditional ~$30,000 commission, that is $24K+ you keep.

See real verified results, then start with a free, no-obligation estimate of your home’s value.