Olson Group and Compass

Market Insights

September 2026 Market Insight — Sonoma County

September brought encouraging signs of activity across Sonoma County's real estate market as we transitioned into fall. The county's median sales price reached $875,000, with 294 closed sales and 334 pending transactions. Homes spent an average of 48 days on the market, while active inventory stood at 1,334 listings.

Looking more closely at our local communities, Sebastopol recorded a median sales price of $1.25 million, with 27 pending sales and an average of 44 days on market, reflecting continued buyer interest.

Petaluma saw a median sales price of $1 million, with homes spending just 32 days on the market. With 32 closed sales and 38 pending transactions, the city continued to demonstrate steady activity.

In Healdsburg, the median sales price was $1.15 million, with 109 active listings and 66 days on market. With only 13 closed transactions, monthly pricing figures remain particularly sensitive to the mix of properties sold.

The September takeaway: Buyers and sellers are navigating a market where pricing, property presentation, and local conditions matter more than ever. While activity varies across communities, well-positioned properties continue to attract interest, reinforcing the importance of a thoughtful, market-specific strategy.

By Summer Olson Stubblefield, Compass REALTOR®

Sonoma County & Mendocino Coast

By Summer Stubblefield Olson, Compass REALTOR® | Team Lead at OG Realtors

A Grounded Perspective on Northern California Real Estate

Real estate markets are shaped by more than headlines. Local inventory patterns, micro-neighborhood dynamics, buyer psychology, and timing all matter—and they vary meaningfully from town to town and coast to inland.

This page is where I share my market perspective for Sonoma County, Marin County, and the Mendocino Coast, informed by on-the-ground experience, current data, and the real conversations I’m having with buyers and sellers every day. My goal is simple: to help you understand what’s actually happening, so you can make decisions with clarity and confidence.

How I Interpret the Market

I believe good market guidance balances data with context. I track pricing trends, days on market, inventory levels, and interest-rate impacts closely—but I also pay attention to how homes are being prepared, how buyers are responding emotionally, and which strategies are working right now.

When I share market insights, I focus on:

  • What the data is showing—and what it’s not showing
  • How buyers are behaving in real time
  • Where pricing is holding firm versus softening
  • How preparation, presentation, and timing influence outcomes
  • What this means for your specific goals and timeline
  • This approach allows my clients to act thoughtfully rather than reactively, even in changing conditions.
  • Regional focus

My market insights reflect active work across:

  • Sebastopol & West County (Occidental, Forestville, Guerneville)
  • Petaluma & South Sonoma County
  • Santa Rosa, Windsor, and Healdsburg 
  • Marin County, including Southern Marin and lifestyle-driven residential markets
  • The Mendocino Coast, including coastal retreat and second-home markets

Each of these areas behaves differently, and broad “Bay Area” narratives often miss the nuance that matters most at the local level.

Compass Research & Data Sources

As a Compass REALTOR®, I regularly reference Compass Research and proprietary market reports as part of my analysis. These resources provide valuable macro-level context, which I then interpret through a local, client-specific lens.

You can view Compass market research and outlooks here:

Compass Intelligence: 2026 Real Estate Market Outlook

I also incorporate MLS data, local sales trends, and firsthand transaction experience when advising clients.

For Buyers

If you’re buying, market insight means understanding:

  • Where competition is strongest—and where it’s easing.
  • How to structure offers thoughtfully in the current environment.
  • When patience is strategic and when decisiveness matters.
  • My goal is to help you move forward with confidence, not pressure.

For Sellers

If you’re selling, market insight means clarity around:

  • Pricing strategy based on current buyer behavior.
  • Preparation choices that actually move value.
  • Realistic timelines and expectations.
  • How to position your home so it stands out, even in a shifting market.
  • Every home is unique, and market strategy should be too.

A Note on Timing and Change

Markets evolve. The insights shared here reflect current conditions and are updated as trends shift. If you’re planning a move—now or in the future—I’m always happy to talk through what the market looks like specifically for you.

While my practice is rooted in Sonoma County, I also represent buyers and sellers in Marin County and along the Mendocino Coast, bringing the same thoughtful strategy and client-first approach to each market.

Connect for A Personalized Market Conversation

If you’d like a tailored perspective on your neighborhood, property type, or buying timeline, I’m glad to be a resource.

Work With Summer

Transparency, kindness, integrity and compassion in every collaboration.  Our clients’ joy is our joy.  Connect with the Sonoma County expert today!

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