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Steve Thielsen

(707) 769-9130


Steve Thielsen is absolutely amazing! We used him for our first home purchase and second in 2019. He found us our dream home that met and exceeded all expectations. He was very knowledgeable and patient with us as we asked questions about the property. He answered all questions that we had and if he didn’t have the answer, he got back to us quickly with the response. He made it very easy to purchase a home. We will only use Steve for future home purchases and will recommend his services to anyone purchasing and/or selling a home.

Lacey T.
Petaluma, CA

We can’t say enough good things about Steve. He made the entire home buying process a breeze. Steve’s friendly demeanor, work ethic, and knowledge about homes is why he deserves every single one of the five stars.

Steve is very customer service focused, friendly, and was always available to educate / answer questions. We couldn’t have been in better hands.

We strongly recommend Steve to everyone buying a home!

Jeeve S.
Petaluma, CA

If you need a realtor that you can TRUST and listen to you and CARE than Steve is your man. Steve helped us to buy our house and he even kept everyone on task which I really needed because we didn’t know how, what, when and were of buying a house.

Thank you.

Debbie K.
Sonoma, CA

My husband and I have worked with Steve Thielsen for several years on both home purchases and sales.  Steve always works very hard for us, going above and beyond what is required of him.  Steve is an honest, professional, and highly skilled Realtor.  Regardless of the buying or selling circumstances, we have had smooth escrows and closings for every transaction due to Steve’s ability to work well with all involved parties.  For a positive real estate experience, we highly recommend Steve Thielsen and Century 21 Bundesen.

Carolyn N.
Cotati, CA

Steve is amazing!  I can’t thank him enough for all his assistance over the last couple months while searching for my first home.  Going into this I was absolutely dreading what the home buying process would entail, but he was so patient and his constant communication throughout the entire process put my mind at ease. I was amazed at his attention to detail and knowledge of every home he found for me.  I am so grateful to have received the superior service he provided & cannot begin to tell you what a pleasure it was working with him.

You’re amazing Steve, thank you again for everything!

Sarah H.
Petaluma, CA

Every so often, my mother gets on one of these optimistic, delusional kicks where she thinks it’s any less than financial suicide to sell all her property in Iowa and move to northern California. During one such phase, we wandered into Steve’s office on a whim and were received with a warm reception. I’d warned her about the exorbitant market prices, but when she saw just how close to reality that shoebox was, her questions became panicked and she unleashed that Chinese “wit.”

“Do you have any foreclosures?” “What about the fix ‘er uppers?” “Four hundred thousand for that junk?!”

Steve dealt with her questions with the patience and understanding of a saint, and led us through many queries to find the ideal house. Despite my mom leaving crestfallen, having communicated she was in no position to obtain anything but the free lollipops on the counter, we received several no pressure follow-up/check-in emails from Steve.

If you’re looking to purchase a home in Sonoma county from a stand-up fella, he’s your man. Not to mention, he’s rather handsome, has an adorable puppy and rides a motorcycle, ladies!

Ligaya T.
Berkeley, CA

Steve is awesome! He came highly recommendend when we bought our first home a few years back, and we wouldn’t consider anyone else when selling it again this year to purchase our new home. He is organized, professional and knows how to handle any complicated situation with grace and efficiency. He took our family needs into consideration, helped ease the stressful situations and wouldn’t let us sign anything useless it was done right. His knowledge about the process made all the paperwork seamless (and yes there was a lot when selling our current home to purchase another!) He went above and beyond to help us with buyer investigations, communicate with all parties needed to keep escrow on time, and sell our home quickly. His integrity, ability to listen, and attention to detail is what sets him apart from anyone else.

April H.
Petaluma, CA

My husband and I were lucky enough to have the pleasure of working with Steve when we purchased our home in March 2010. We had looked at houses online and were pre-approved for a mortgage, but were unsure of what to do next. That’s when we met Steve. He guided us through the home buying process and was there for us at every step along the way. Steve is extremely knowledgeable and made us feel relaxed during what could have been a stressful time.

Steve truly went above and beyond for us. He made himself available nights and weekends; always responded to emails within a couple of hours; came to our house to sign paperwork, so we didn’t have to bring our one-year-old out at night; and he even made the switch from Sonoma to Solano county with us when we decided to shift our home search.

We feel so lucky to have found Steve and would whole-heartedly recommend him to help with your home buying or selling needs.

Jessica W.
Fairfield, CA

“Steve Thielsen went above and beyond in handling the sale of our prperty. We couldn’t be happier.”

Steve Weis

“Sale went smooth and quickly as possible. Many great offers to select from after only one week of showing. Let agent know what I wanted, and stepped aside to them make it happen. Sale results exceeded expectation.”

Ryan F.
Rohnert Park

“Steve really took the time to make sure I was comfortable with my new home. Being that it’s kind of a country property there were some things I’d never dealt with before (100 year old water rights agreements, private road maintenance agreements, well water and septic). He knew all about the things that are common for country properties, and did a lot of research on the old permits and agreements, to make sure I really knew what I was getting into.

I was thankful for all the meticulous work, but also had a lot of fun with Steve cruising around and checking out properties.”


“Steve was easy to deal with, and very good at keeping us updated on the progress of the sellers’ thinking, and making sure we engaged them in a way to achieve a positive result.

He was very attentive to all the details we needed to get it done right for our particular requirements, which included a 1031 exchange. I would recommend him wholeheartedly to anyone looking for real estate services in Marin.”

John Gross

“Anyone needing to buy/sell in Sonoma County should work with Steve Thielsen. It’s just crazy how responsive and communicative he is. There were even times when he answered his phone while out in the country in rubber boots inspecting ranch property, and while up on top of his own house working on his roof! Contact Steve – you will be so happy you did!!!”

Kelly Guns

“Steve Thielsen is a wonderful realtor.

He recently served as my buyer’s representative, helping me complete a complicated deal I had been dreaming about for years, involving a 1031 exchange, with tenants in my exchange property, and the need for financing on an undeveloped land purchase, to name a few of the challenges.

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. As many of Steve’s reviews here highlight, he will proactively deliver that something extra you need—in my case spending a whole day on the planned purchase property overseeing well tests and taking us on an introductory visit to the County of Sonoma Permit and Resource Management Department, as two examples.

Most remarkable to me, since I am also a professional services provider, I gained valuable lessons from Steve about what great communication, high ethical standards and exceptional service quality in a business setting really look like.

I stumbled across Steve when we called CENTURY 21 Bundesen one day, and Steve happened to be the one who took the call. On a holiday—he’s like that. Don’t leave your dreams to chance. Just call Steve Thielsen.”

Sharon H.

“I met Steve through my neighbor about seven or so years ago during social events. He has always been very friendly, courteous, bright with a great sense of humor.

I chose Steve to handle my 1031 Exchange because I believed Steve would do a good job during stressful situations and make sound decisions because he was tested during Desert Shield and Storm when George W. Bush was president.

Steve with his sound experience, keen wit and stewardship, helped me find a new suitable rental property and guided my 1031 Exchange from the beginning to the end.

Many thanks to Steve…..

Steve did an excellent job finding me a suitable rental property and guided my 1031 Exchange flawlessly from the beginning to the end.”

Marc Dal Poggetto

“Steve Thielsen was amazing!!

This home purchase was challenging due to an uncommunicative lender using an inefficient process, and the seller’s cash backup offer pressuring for us to fall out of escrow.

None of those issues stopped Steve from getting me through escrow & closing timely! He constantly followed up with the lender to keep the process moving and more than once provided duplicate information when the lender misplaced it or didn’t realize they already had it. The lender also wanted to see the title to the home which the seller was unable to find. This was an unusual request, and was holding up our closing, so Steve did some research and found a legal way to get around providing the title.

Steve’s good relationship with the escrow agent allowed me to sign loan docs on a Saturday so the weekend didn’t delay my closing!

I have recommended Steve before and will continue to do so. He is THE BEST!!”


“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. When I decided to look to buy in Petaluma she immediately gave me Steve’s name and number. He was very knowledgeable about neighborhoods in Petaluma and Sonoma County (I also looked at homes in Rohnert Park and Cotati) including street noise as I desired a quiet neighborhood. My entire experience was GREAT and I would recommend Steve to anyone looking for property in Sonoma County!”

Mary McCarthy
San Francisco

“This is the second time I have counted on Steve’s expertise. Each time he has gone over & above my expectations. Right before showing the house I noticed a glass closet door was missing. Steve was kind enough to use his truck & go with me to pick up a new door & install it. He also helped with a repair inside the house and set me up to have the house staged to ensure my home was presented well for potential buyers.

Steve always makes himself available or gets right back to me when I have questions. He is an excellent communicator and his knowledge and expertise of the real estate market and the paperwork really comes through when he shares the why behind any recommendations he makes.

Steve Thielsen is THE BEST realtor and a terrific and caring person. I will be working with him again on my next home purchase!!”

Ellen Bolding

“I could not have chosen a better agent. Steve did an awesome job. Knows what to do and does not waste time getting it done. Steve was a huge help I work out of town and could not be there when things needed to get done so he did it all for me. Very helpful for me knowing I could trust him and know it was gonna get done.”

Don Smith

“I’d recommend Steve to everyone. He is really smart, knowledgable, action oriented, and was extremely helpful through the entire home purchasing process.

Thanks Steve for everything! We look forward to buying our next home through you as well.”


“We have used Steve 7 times now, we absolutely love and trust him. We recommend using him to all of our friends and family because of how great he is. This last transaction we had with him was a difficult one due to the position we were in; he got us over all the obstacles we were facing and now we have our dream home, we still can’t believe it!

Thank you Steve! We feel so fortunate to be able to work with you!”

Thomas Harris & Sara Hallas
Santa Rosa

Dear Steve,

I just wanted to thank you for all your assistance over the last couple months while searching for my first home. Going into this I was absolutely dreading what the home buying process would entail, but your patience and continuous communication throughout the entire process put my mind at ease. I was amazed at your attention to detail and knowledge of every home you found for me. I am so grateful to have received the superior service you provided & cannot begin to tell you what a pleasure it was working with you.

Thank you again for all your hard work,

Sarah H.

Dear Mr. Bundesen,

I wanted to take a few minutes to acknowledge one of the prized superstars at your Century 21 office, Mr. Steve Thielsen. Having worked with him as my buying real estate agent for only two months I have nothing but positive and wonderful things to share about him. Ever since I met him he has been the utmost professional, competent, and knowledgeable realtor I have ever met. Mr. Thielsen found me a home exactly to my liking. It only took a week and a half for us to make two offers whereas I had searched for two years with a prior realtor and had found nothing. Although my financial prerequisites were quite lower than anyone else I know, he treated me as if I were a million dollar client. Mr. Thielsen provided me with such great care and guided me through every step of the process. I will recommend and refer Mr. Steve Thielsen as a realtor to anyone anywhere anytime and twice on Sundays. He is a gem and you are so blessed and privileged to have such a superstar on your team. He truly made one of my dreams come true so quickly and I will always thank him for that.

Tabi A.
Financial Analyst

Dear Mr. Thielsen,

We wanted to thank you for your superior service in helping us purchase our new home. Even though we started searching over a year ago and we were not really sure what we were looking for, you were patient and professional while guiding us with our search. Your expert advice helped us to determine what kind of home to purchase.

While we were busy running our business, you did a tremendous job of researching homes and keeping us informed and up to date on what was available. Your knowledge of Sonoma County’s real estate market was invaluable to us. We didn’t have to do a lot of research on our own and knew we could trust your judgment on what was a good deal and what was not.

After we finally submitted an offer on a home, you carefully walked us through every detail of the purchase and made sure that we understood what was happening and that we were happy with the results each step of the way. You were an excellent negotiator and kept us informed of any issues or changes that came up. We were always able to reach you any time of the day, night, or weekend when we had questions.

This is the third home we’ve purchased and expected it to be the most difficult considering it was an investment property and the changes that have been made in the lending industry. It was, however, the smoothest home purchase for us. We believe this is entirely due to your skill in working seamlessly with your client, the seller’s agent, the mortgage lender, and the escrow officer. We felt you always had our best interest in mind and kept everything right on track.
The thoughtful gifts you and Century 21 Bundesen provided for our family at the close of escrow made the purchase that much sweeter!

We will certainly use your services again for our next home purchase and/or sale. We will also highly recommend your services to anyone looking to purchase and/or sell a home.


Tom and Carolyn Nelson

Dear Mr. Bundesen;

After unpacking boxes, and finally re-connecting the computer, we are happy to send this letter of appreciation for the job that Debbie Rossotti and Steve Thielsen did during our recent real estate transaction in purchasing our home on Flores Avenue.

Debbie and Steve are a top notch team. From the very beginning we appreciated their openness in allowing us to honestly express what we liked and disliked about each home we were shown. In addition, they helped point out what they perceived as the positives and negatives, and we truly appreciated their seasoned insights and expertise.

Debbie and Steve were exemplary professionals, and worked very hard to protect our interests through a very difficult transaction. Throughout the ordeal, Steve and Debbie kept us informed while we discussed our options. I know they were diligent in trying to work with the seller’s agent in order to bring the transaction to closing, and we believe it was their negotiating skills that helped move it forward.

Mr. Bundesen, we would also like to express our appreciation for your willingness to speak with Marla personally on the phone to help negotiate some of the difficulties that arose. In addition, we were grateful that you were willing to contact the seller’s agent yourself to discuss some of these issues.

Furthermore, we were especially appreciative of the thoughtfulness both you and our agents showed on to us on more than one occasion. When we arrived in our new home we immediately found that your agency had purchased a new mirror to replace the decorative one that had been taken from the bathroom. Additionally, Debbie and Steve had a beautiful wine and cheese basket waiting for us in the refrigerator as well as an In and Out Burger gift certificate.

These gestures are all indicative of the type of quality of service Bundesen strives to attain to. We have come to know that Bundesen is a very well known and respected agency in the area and we count ourselves lucky to have run across you by chance. We will have no hesitation in recommending your agency to anyone we meet in the future.

Again, thanks so much for all your support throughout this difficult time.

Marla and Pramod Sarpotdar

Steve Thielsen was right there during our entire buying process, and he remained diligent given a strange lending market. I have gone through the buying and selling of property five times, and Steve’s performance was exceptional guiding us, listening, and presenting our needs. I recommend him highly. He is a wonderful person to know as an added bonus, really a solid and personable man.

Carol Hannon & Tim Garthwaite

Dear Mr. Thielsen,

Thank you for the assistance you have given my mother and myself in the sale of her house in Santa Rosa.

In spite of all the ups-and-downs of selling a house you never once lost your calm demeanor. You patiently answered all our questions and walked us efficiently through the entire process.
I would highly recommend you as a realtor to any sellers or buyers in future house sales.

Sincerely yours,

Diane Brown


It was a pleasure collaborating with you on the purchase of my new home. Once I gave you the requirements for a place you stepped right in and showed me only places that fit my needs and my price range. You went above and beyond on making sure I saw what was available. Your knowledge of Real Estate value in Sonoma County was a benefit in determining the size of the home to be purchased and the offer to make.

The extra effort you put into the purchase of my home and dealing with the obstacles placed before us in buying a foreclosure. You made the experience pleasurable by keeping me informed of where things stood daily.

Your follow up after the purchase of my home has been greatly appreciated. I highly recommend you to anyone looking for a real estate agent.

Douglas R. Birks

Dear Steve,

Now that the sale has been completed and I have a moment to reflect on the purchase transaction with the Mendoza’s I wanted to take a moment and commend you for your outstanding professionalism. As you know the real estate market has drastically changed complexion. Gone are the days of fast sales with little or no documentation loans. Each transaction now requires diligence and attention to detail and this is especially true of the VA purchase financing.

VA loan, inspection and appraisal requirements at a minimum required delicate communication to all the parties involved. The multiple changes to value and your persistence in seeing the Mendoza’s receiving the maximum seller’s credit for closing resulted in this loan closing and was the difference in the Mendoza’s completing the purchase of their home.

As a mortgage financing professional with over 25 years experience I can rightfully judge when a real estate agent exhibits skills and expertise above and beyond the majority. It was a real pleasure working with you on the Mendoza home purchase. I would like to invite you to use my name as a reference to any present and future clients. I also look forward to working with you again.

Steve Herndon
American Pacific Mortgage
CC: Karl Bundesen

Dear Steve,

We wanted to Thank You for representing us in the purchase of our home in Santa Rosa. We thank God first. We realize what a difficult transaction it was to purchase a foreclosure in these difficult times as well as using a VA loan. Any other agent would have given up, but you did not. We met and overcame many obstacles over the four months it took to make this work. Your response to our calls and emails was awesome and always in a timely manner. We have purchased other homes in the past and Agents left us feeling disconnected at times, you did not!!

Your knowledge and expertise was very apparent from the first time we met. You made time for us even with our difficult schedule. We felt we were a priority and not just another listing. Thank you for not giving up, because there were times when we wanted to give up and move on. You spent many hours of your time to make sure all the paperwork was done correctly and on time. We realize you had to work with a very difficult local listing agent and financial institution on the east coast.

Through it all you kept a positive attitude, and you never let us down. Thank you for communicating with us in such a manner that we always knew what was happening and what the next step would and should be. You are a man of character. In today’s world where good customer service is very hard to find, you went above and beyond to satisfy our needs. We will highly recommend you to any friends or co-workers who are looking for a good real estate agent. Thanks again.


Hector and Donna Mendoza
Santa Rosa, CA

Karl Bundesen,

Sir, we needed to let you know what a great job Steve Thielsen did in representing us in the purchase of our home in Santa Rosa. In these very difficult financial times, buying a foreclosure with a VA loan and a selling agent who did not seem interested in this property, Steve’s can do attitude and his energy got the job done. We believe any other agent would have given up on this deal, we ourselves felt like giving up at times.

Steve made himself available to fit our schedule and many times went out of his way to get things done. If Steve did not know the answer, he made sure and got us an answer. It is very hard to find good customer service these days, we feel Steve made us a priority and was always in contact with us through the whole process. Steve was very proud to represent your company and did his utmost to uphold your reputation in this community to the fullest.

Thank you for having the foreknowledge to hire a man of character and enthusiasm who loves his job such as Steve.

Hector & Donna Mendoza
Santa Rosa, CA