Alexandra Costello

Alexandra Costello

DRE #: 02062611
About Alexandra
A California native, Alexandra has witnessed first hand how much the Bay Area has grown over the past two decades. She has an intrinsic understanding of the potential of what’s coming in each given area as well as its personality. Her eye for interior decor and garden design has led her to become the ‘go to’ person amongst her friends and family. She brings all of these skills to her job, helping her clients to find their dream home.

With a successful career in marketing, she has a history of building trusted and lasting relationships as well as a proven track record for attention to detail, clear communication and a project management style of organization. When she’s not out looking at homes to find the perfect fit for her clients, you can find her trying new restaurants, exploring the North Bay and volunteering her time at the Humane Society helping dogs get socialized and ready for adoption.


"As first time home buyers, we had no idea what we were getting ourselves into. And to be in the middle of a pandemic when showings are scheduled and anxieties are high...Alexandra helped us to find our DREAM HOME! We were first unsure of location and Alexandra was patient and available at a moments notice when we wanted to see a home. She was on top of everything with the proper paperwork needed in order for all pandemic precautions and we were always well informed when homes were either unavailable or accepting offers. She was gracious and kind even when we were ping-ponging around the bay area from the east bay to the north bay lol. We finally settled on a beautiful home in a perfect location in Marin county. She worked her magic in communicating with the selling agent and was always transparent with us. We found ourselves holding our breath waiting for every call. In the end, we made a competitive offer that landed us this beautiful home! She even recommended our lender to us who was a pleasure to work with as well. Alexandra is well integrated in this industry and it shows. We closed on our first home in only 3 weeks at the height of the pandemic! Amazing! Whenever we had a question or anything seemed unclear, she quickly got us our answers and made us feel at ease. So much of first time buying is confusing and unclear, but Alexandra was so helpful in explaining everything to us. I would highly recommend any buyer to work with her. She truly is in this with you and it feels like having your best friend alongside through this nerve wracking journey. We couldn't be more happy in our beautiful home."
Candice & Adam Marr, 2020

"Alexandra has helped us buy and sell the house on 700 Casella way. Her style of working is very unique and assertive as she is not only a real estate agent for us but a friend and a family member. Her genuine warmth and concern in looking after our interest is unparalleled."
Sajjad & Gina, 2020

"I love my new home! It started when Alex took me on my first stop that day of five or six homes — all good! But it didn’t actually start there. It began because I didn’t want to waste my time (I was just visiting here), or more importantly, hers! I had told her exactly what was wanted, close to my kids (but not too close), no “fixer-upper”, move-in condition. Done! And Alex did better. She listened and produced ... all I wanted and more. In a nice neighborhood with great neighbors one can only dream of. And the best? It was the first house I was shown. Saw the rest, but came back to the first. Saw it. Loved it. Bought it. She had listened. You are in very good hands with Alex to help you find your dream home."
Betty Lynch, 2019

"Alexandra was a pleasure to have as our real estate agent. Alexandra never left any questions unanswered and always responded promptly. I would highly recommend her over any other agent as she and the people she works with will help you find your home within your budget as well as receive the best service any agent can provide. I know from experience as we were able to buy the house we liked, in our budget using, Alexandra."
Sajjad & Gina, 2019

"We met Alex during an open house in February 2019. We have been searching for our first home for some time and have given our information to various agents. However, no one really followed-up with us until we met Alex. Alex was breath of fresh air as she was enthusiastic to help us narrow down the type of home we wanted and answered any questions we had. She was super helpful to us as we have never been through the home-buying process and were nervous. She made the experience very positive and listened to our needs. In a few short months, we finally got our first home in April 2019. We would definitely work with her again."
Linda & Daniel, 2019

"Alex made my experience as a first time buyer feel safe, genuine, and all about me and my needs as a home buyer. She worked with me even before I started to seriously look in the market to get a sense of what my preferences were. I was looking in a very competitive market, and Alex didn't shy away from the challenge. She was honest about where I may need to make compromises, and where I might need or want to push or explore further. For example, she had me write a list of what I wanted out of a house, and out of a neighborhood so that she could get an accurate picture of how I like to live. Taking this approach meant that Alex really was looking to understand my needs, so that when we did find the right house, she knew it just as much as I did."

"She's hands down a realist. She reinforced a few strategies that I'm so thankful for: take it one house at a time, and don't get attached. When we lost our first offer, I was already prepared and ready to keep hunting."

"Buying a house as a first-timer, especially as a woman, can be challenging. I had a lot of questions and a ton of fears. What was so perfect about working with Alex was that she met me where I was. She answered my questions and prepared me for all the potential obstacles. Alex is a pro, she'll find you the house you're meant to live in."
Kathy Simpson, 2018

"Alex Costello made buying a home a joy! She helped me figure out the area in Petaluma that best suits my needs, she showed me the opportunities within my price range, along with all the potential each home had. She was there to get me through the entire purchasing process, the ups and downs. Without her, I would not have found my new home."
Jennifer Douglas, 2017