How New MLS Rules Are Impacting Pricing and Appraisals in Silicon Valley
By Lisa Lombardi, Certified Appraiser
Recent changes to Multiple Listing Service (MLS) rules, driven by industry-wide commission reforms, have not-so-quietly changed how transaction details are reported. Most notably, broker compensation and seller concessions are no longer displayed in the MLS. While sale prices are still public, the terms behind those prices often are not. In Silicon Valley’s luxury market, this missing context can make a meaningful difference.
Why This Matters in a High-Price Market
In communities such as Atherton, Palo Alto, Menlo Park, Los Altos, and Los Altos Hills, what might seem like a modest concession can represent a six-figure adjustment. When those concessions are no longer visible in the MLS, comparable sales may appear stronger, or weaker, than they truly were, depending on how the transaction was structured behind the scenes.
What This Means for Appraisals
As appraisers, we rely on accurate and complete data to determine market value. With commission and concession details no longer readily available:
We must verify transaction terms manually, often by reaching out directly to listing and buyer agents.
Appraisal timelines can be extended, especially when agents are difficult to reach or when lenders request more detailed explanations.
When key details cannot be confirmed, appraisers may take a more cautious or conservative approach, especially with custom or luxury properties.
This additional scrutiny is most noticeable in markets with low inventory and limited recent sales, where each comparable carries significant weight.
What This Means for CMAs and Pricing Strategy
For real estate agents, CMAs have become more nuanced and less formula-driven:
Two homes may show similar sale prices, yet one may have included substantial credits or buyer-paid compensation that is no longer visible.
Accurate pricing now relies more heavily on local knowledge, direct experience, and insight into how comparable homes actually sold.
In today’s environment, context matters just as much as the numbers.
The Bottom Line
The new MLS rules have not changed how market value is determined, but they have changed how value is analyzed, supported, and explained. In Silicon Valley’s luxury markets, thoughtful pricing, clear documentation, and experienced professionals on all sides of the transaction are more important than ever to ensure reliable CMAs, smoother appraisals, and successful closings.
DeLeon Realty, Inc. | DRE #01903224 | Equal Housing Opportunity
