Sonoma County · Marin
Exceptional representation for extraordinary properties.
Decades of engineering, construction, and real estate experience, knowledge, and judgement applied to your transaction.
Broker Associate · GRI · SFR
Steve Thielsen
The structure, the systems, the lot, the permits and the contract, read as one connected decision. Steve spent fourteen years in the building trades and twelve in technical sales / electrical engineering before a real estate career that began in 2007, and it changes what your sale or purchase looks like.
What clients tend to notice is not the credentials. It is that problems surface early, technical findings get explained plainly, and the work continues after the interesting part of a transaction is over.
About Steve →Portfolio
Selected Sonoma County and Marin transactions.
Recent sales
Recent closings with Steve.
Courtesy of Livxplore Real Estate & Lifestyle. ©2026 by Bay Area Real Estate Information Services, Inc.
Courtesy of Century 21 Epic. ©2026 by Bay Area Real Estate Information Services, Inc.
Courtesy of Re/max Gold. ©2026 by Bay Area Real Estate Information Services, Inc.
Courtesy of Century 21 Epic. ©2026 by Bay Area Real Estate Information Services, Inc.
Recent sales published on Steve’s brokerage profile, checked Oct 20, 2026. This is a selection of reported closings, not a complete career transaction history.
Reviews
What clients remember.
What clients have said about working with Steve on pricing, property condition, negotiation and difficult transactions.
Seller · Napa, CA
Steve is a pleasure to work with. His knowledge of the unique issues with the property we sold proved invaluable in making it a largely stress free transaction. Would definitely recommend him and work with him again.
Seller · Santa Rosa ca
Steve not only helped us buy our dream home but guided us through a slowish market and got our house sold!
Buyer · Middletown CA
Steve was highly highly recommended to us. He was paramount in helping us navigate a tricky transaction and helped us get into our dream property. His years of experience and knowledge of the industry were evident from the first time that we met. I would highly recommend Steve and his services.
Seller · Sebastopol CA
Steven Thielen was extremely reliable from the very beginning. Very professional and helpful. He was very prompt in answering any questions I had. Helped me with some of the things that needed to happen and gave me helpful feedback about what needed to be done to make the sale process more…
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Steven Thielen was extremely reliable from the very beginning. Very professional and helpful. He was very prompt in answering any questions I had. Helped me with some of the things that needed to happen and gave me helpful feedback about what needed to be done to make the sale process more efficient and ultimately successful. I have recommended him to several people. It was truly a pleasure working with him!!
Buyer · Petaluma, CA
Steve came recommended to us from a family member. From our first conversation to closing, Steve was incredibly helpful, communicative, and demonstrated exceptional knowledge of the local market. He made an effort to show us a wide variety of properties within our price range which helped us clarify…
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Steve came recommended to us from a family member. From our first conversation to closing, Steve was incredibly helpful, communicative, and demonstrated exceptional knowledge of the local market. He made an effort to show us a wide variety of properties within our price range which helped us clarify exactly what we were looking for. We ended up buying a fantastic home in a neighborhood we didn't think we'd be able to afford. Steve is wonderful and I would recommend him to anyone looking for their first home.
Buyer · Petaluma
Steve started us on our experience buying our first home and made it incredibly easy going. His thorough vetting of properties and familiarity with the locations/amenities made making an informed decision easy.
Seller · Santa Rosa
Steve is a true straight shooter with a deep understanding of the local market, and his guidance on pricing was spot-on.
Seller · Rural Petaluma
An older rural property like ours can have many potential issues that need to be identified and assessed. He quickly outlined the steps we'd need to take in advance of the sale.
Seller · Rohnert Park
Steve did an amazing job with the sale of my fourplex property, he was on top of the transaction from start to finish.
Seller · Estate sale
Steve has the knowledge and experience with estate sales to spot potential roadblocks and relay possible solutions.
Seller
With Steve Thielsen as my agent I knew I was in good hands. He is trustworthy, professional, and an all around great guy.
Buyer · Sebastopol
Steve is extremely knowledgeable about home construction and what to look for when reviewing a property. He can explain technical issues in ways that are clear and easy to understand.
Seller · Sonoma
He told me exactly what improvements to do to my house for maximum value.
Seller · Rohnert Park
He communicates exceptionally well, and is very thorough and detail-oriented throughout the entire process.
Buyer · Petaluma
The negotiations were complicated, but they stayed patient, proactive, and solution-focused throughout the entire process.
Buyer · Cotati
Steve Thielsen made huge decisions easy with his honesty, patience, eye for detail and huge store of knowledge of houses and the real estate market.
Seller · Santa Rosa
We have used Steve 7 times now, we absolutely love and trust him.
Buyer · Petaluma
Steve designed and negotiated the deal in a way that protected my interests and managed every step of the process in a kind and thoughtful manner.
Seller · Petaluma
It's just crazy how responsive and communicative he is.
Buyer · San Francisco
I was referred to Steve Thielsen by my niece who had purchased her home a few years ago. He had been her agent and she was extremely satisfied.
Buyer · Petaluma
He went above and beyond and we will only use Steve for future property purchases.
Buyer
It took me 3 years to find the right property. Steve was my realtor for all 3 years. Needless to say, he was very patient with me.
Buyer · Santa Rosa
We were blown away by his breadth of knowledge and how communicative he was.
Seller · Cotati
Steve was awesome throughout the entire process. Kept me in the loop with all the inspections, even helped clean up some of the property!!!
Area guides
Where Steve works.
Four local guides covering the market, the neighborhoods, schools, property research and daily life, 24 pages deep.
Answers
What clients ask Steve.
Buying, selling, country property, permits, disclosures, wildfire and insurance, taxes, contracts and market data. 132 questions, each answered directly, with the governing agency or record linked wherever one exists.
SellingWhat should I fix before selling, and what should I leave alone?Open
BuyingShould I waive the inspection contingency to win a house?Open
Country propertyHow do I know if a well produces enough water?Open
Permits & zoningCan unpermitted work be legalized after the fact?Open
InspectionsWhat does a general home inspection cover, and what does it miss?Open
Wildfire & insuranceCan I still get homeowner's insurance in a high fire area?Open
Market dataHow accurate are online home value estimates?Open
Working with SteveWhat does a first conversation with Steve involve?Open
Browse all 132 answers
For sellers
What would your property bring?
Steve prepares it personally, from the property itself, its condition, setting and current market. An instant estimate sees none of that.
Contact
Talk to Steve.
Every message goes to Steve and no one else. The first conversation is about your property and your questions.