"She is the best!"

“Kitty is committed to providing exceptional service to her clients. She is very friendly and reliable. She always responded immediately to phone and email/text. She was very patient and honest, and always explained everything step-by-step for informed decisions with multiple options available. Even after the purchase, she followed up with me regularly and made sure everything was ok. I’d highly recommend Kitty to any potential client. She is the best!”


"We couldn't have asked for a better Realtor."

“Kitty Costello helped us purchase our first home in downtown San Jose. We couldn't have asked for a better Realtor. Kitty was always very responsive, she listened to our wishes and concerns, and she always had our best interest at heart."

Dan & Marie

"Kitty educated us on the process ..."

“Purchasing a home can be a daunting task, especially in a highly competitive market. Kitty educated us on the process, helped us navigate through all the potential hurdles, made herself and her valuable resources available at all times. Most importantly, she was patient through first-time home-buyer questions, very friendly, and was able to take 'daunting' out of the first-time home-buying experience. We're grateful to have purchased our home with her and for her continuing to stay in touch.”

Sameer & Siury

“Kitty's calm, rational approach put our minds at ease ..."

“Kitty was enormously helpful with all aspects of our home buying process. From suggesting neighborhoods for our search to walking us through writing the offer and all details while our home was in escrow, she was always extremely patient, responsive, and willing to help. Moreover, Kitty's calm, rational approach put our minds at ease during the most stressful parts of the process. We couldn't be more in love with our new home and are so thankful we had Kitty to guide us through the process.”

Shana & Isaac  |  Buyer

“She nailed it!"

“Kitty was the perfect realtor for us! She understood our needs and delivered. In fact, we had an appointment to look at a house and she emailed us the morning of and said there was another house in the area that we might be interested in. That "other" house is the house we now own. Kitty was watching the market and knew what we were interested in. She nailed it!

Kitty was always available and communicative via email or text. This made a big difference throughout the process as things move really quickly in the bay area housing market.

Kitty has found a loyal follower and friend in my wife and I. She will be our go-to realtor in the future and I cannot recommend her services more strongly to someone looking to own his/her perfect home in the bay area.”

Brian & Allison

“Kitty was absolutely fantastic ..."

“As first time home shoppers, we were a bit overwhelmed with the process of looking for a house. Kitty made the process as painless as it could possibly be and removed a lot of stress and worry from what is a huge purchasing decision.

Kitty was absolutely fantastic in quickly honing in on what exactly we wanted and needed. She is extremely knowledgeable, and always quick to answer questions and respond back.

She quickly earned our complete trust and confidence, and truly keeps her clients best interests as the top priority. I would highly recommend Kitty to anyone looking for a top quality Realtor.”

Cody & Jessica

“We're extremely happy with our new home."

“Kitty helped us manage the risks of making a competitive offer that ended up getting accepted. We're extremely happy with our new home and have Kitty to thank for it.”

Max & Andrea

“Kitty Costello provided my husband and I with the best experience."

“Kitty Costello provided my husband and I with the best experience. As first-time home buyers, my husband and I had many questions about purchasing a home, as well as what to expect about the entire process. Kitty was absolutely amazing, and answered every question thoroughly. She provided her insight and expertise with every answer. The best part about working with Kitty is how patient she is, and thorough. Kitty knows the San Jose area well, and was able to help us find the perfect location and home! She was there every step of the way.

Kitty never pressured us, rather she was always there providing us with the best information possible. Kitty was always available whenever we needed her, always ready to meet us when we found a new location. When we found our perfect first place Kitty walked us through the process very thoroughly. She went over every part of the contract and answered every question or concern we had. Kitty made the process very smooth.

When our offer was excepted Kitty was there every step of the way. She helped ease the situation of the lending process, and provided us with great service throughout! After our home closed Kitty helped us with providing us with amazing referrals! I do not know what my husband and I would have done without having the support of Kitty through the entire process of buying a home! She worked so hard for us, and was literally are biggest supporter through it all. Kitty has great experience and that definitely helped with the purchase of our first home!”

Mike & Kacey B.

“Whenever I contacted Kitty, she was right there with an answer."

“It is my pleasure to highly recommend Kitty Costello as a top real estate agent who I hired to purchase a home in the unpredictable Bay Area housing market of 2015. I met Kitty at an open house and was immediately impressed with her intelligence and as I was soon to find out, her work ethic. Whenever I contacted Kitty, she was right there with an answer. Somehow, she makes you feel like you are her only client and that she is just waiting to help you. Her skills and dedication made the purchase of my new home smooth sailing. To say she went above and beyond as my realtor is an understatement!”


“I highly recommend Kitty to anyone who is looking for an agent!"

“Kitty was the real estate agent for my first home purchase and I felt well taken care of throughout the process. Kitty was punctual, detail-oriented, efficient, and was always responsive. She took the time to understand our needs and kept us informed on market activities throughout the process. She was also proactive in providing us extra information that helped us reached the decision at the end. While there were delays on the seller's side we were able to close on time and I felt that we could always count on Kitty to move things along. I highly recommend Kitty to anyone who is looking for an agent!”


“Kitty is a highly professional and skilled realtor ..."

“We have relied on Kitty Costello to help with the purchase and sale of our home in San Jose. She is a fantastic individual who takes the time to listen and understand our needs. She communicates well and knows the market in this area. When we asked her to help sell our home, she did all the legwork of coordinating with multiple contractors to get our home into top shape before listing. After listing our home, she was able to negotiate and secure an offer from a buyer within only a few days. We eventually closed with a sale price that exceeded our expectations. Kitty is a highly professional and skilled realtor and we are pleased to recommend her.”

Daniel & Marie Isaac