Helping East Bay Seniors & Their Families Navigate Downsizing with Care, Expertise, and Trust.
From first-time buyers to downsizing in retirement, I’ve got you covered. As a certified Seniors Real Estate Specialist (SRES), I’m here to guide you
with confidence—your trusted real estate
partner in the Bay Area.
Looking for the best Real Estate Agent in Benicia, California?
Allison Costelow brings more than $15 million in local sales volume and two decades of combined healthcare and real estate experience. As a Seniors Real Estate Specialist® and Certified Probate Expert, she helps mature homeowners and families navigate downsizing, estate transitions, and new beginnings with clarity and compassion.
Ready to Learn More?
Click below to explore how I can help you or your loved one navigate this important transition with clarity and care.
WHAT MY CLIENTS THINK
"We love Allison Costelow! Her proficiency as a real estate agent and ability to give families what they want during the home buying and home selling process is this woman’s super power. From the moment we signed on with her we felt her complete dedication to assuring we would get the home we needed at the terms we wanted. She surpassed our expectations! I was consistently met with a timely answer and guidance all the way to the finish line. Painless and extremely fun actually.
Don’t hesitate to work with Allison!"
NICOLE
"Allison is one of the most caring and loving women have ever met. When you are looking into buying a home it's very a difficult, nervous, overwhelming decision. But when you have a friend by your side walking you through everything It's a whole another story. She is there through the entire process and if you ever have any questions is there to answer everything."
Racheal
"We worked with Allison - WOW! What a gift, she took all the stress of home buying away by being so on top of everything, giving us all the need to know details and handling inspections for us. I highly recommend Allison, what a sweet, kind and helpful realtor. She even got us connected with a lender she works with, which made the process that much better. Thank you so much for all your help!"
ASTRID
"Allison is a a go getter. When you want a realtor to fight for you and truly represent your best interest in a real estate transaction she is the one to go to! She is also super kind and a really great listener. She will go at your pace and make you feel like you are her top priority and apart of her family."
NIKI