Jeff Costello

Team Leader and Designated Broker
Jeff Costello Profile Photo

Jeff started his Real Estate career in 2004 when he went to work for a wholesale mortgage bank. That opportunity was his introduction to Real Estate. Jeff was instrumental in assisting brokers, bankers, and loan officers on qualifying, structuring and underwriting mortgage loans. In 2007 as the housing market was on the down side of it's peak, Jeff became a licensed agent and Realtor. Over the course of the next few years, Jeff went on to earn and achieve several coveted designations as well as navigate successfully through one of the toughest real estate markets of our time. Jeff attributes his experience, knowledge, work ethic and success to working through a distressed market which he believes makes him a better agent, representative, and member of his community.

Jeff is currently a member of the National Association of REALTORS, Seattle King County Association of Realtors, Council of Real Estate Specialist and the Real Estate buyers Agent Council. His current endeavors include expanding his team of local experts, now known as the TribecaNW Realty Group, and educating buyers and sellers about the benefits of working with a team of full time real estate professionals over the individual agent.

Jeff grew up in the Puget Sound area and has lived, worked, and played all over the region. When he isn’t engaging with clients or selling homes, Jeff can be found with his wife and their three children. They really enjoy the outdoors, camping, hiking, and boating. Jeff also spends time getting involved and being active in his kids’ hobbies, whether it’s ballet, soccer, or swimming.

Unusual Fact:

I instructed over 600 hours of continuing education in a single year.

Perfect day:

Out in nature hiking or kayaking with my partner and pup.

Born In:

Redmond, WA

First job:

Managing a print & ship center.

The best advice you've ever received:

Kind and clear beats nice and vague.

The best part of this team is:

The people and our culture of collaboration.

Proudest Moment:

Completing my MBA degree while working full time.

Favorite Food:

Birria Vampiros

The superpower I'd want is:

Teleport anywhere in the world.

Favorite Western Washington Location:

Hoh Rain Forest

King CountySnohomish CountyPierce CountyThurston CountyKitsap County

King County

Seattle, vibrant neighborhoods, and a mix of urban energy and Puget Sound views.

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Success Stories

Hundreds of satisfied clients

Read More Stories
"Overall, excellent service from Ms. Ashley Wise! Would highly recommend!"
"Brittany was amazing. She gave a comprehensive and competative price analysis and not just a price I wanted to hear but what was realistic for the current market. The preperation fRead MoreRead Less
"We were connected with Jaden B from Tribeca through a listing on Zillow and have nothing but positive things to say. He is professional, knowledgeable, kind, helpful and so much moRead MoreRead Less
"It was great working with Tribeca NW Real Estate. David Lew is a dedicated and professional realtor. Communication was also clear and effective throughout the entire home buying prRead MoreRead Less
"Ashley sold my home sooner than expected and at a decent price. She maintained great interest in the home and constantly got people in there to see it."
"Muchas gracias Jorge por ti tengo hoy me casa des pues de intentar por otros lados con ustedes fue posible"
"Just recently purchased a mobile home with the help of Ashely Wise. She was always very supportive, professional and answered any questions we had."
"Tribeca NW Real Estate was incredibly friendly and made for a smooth home buying process. I would highly recommend working with them. Cameron was always there to answer any questioRead MoreRead Less
"I can’t say enough about how protected we felt through the entire process. Veterans United was spot on to have us trust her and Tribeca. Ashley, thank you for everything to includeRead MoreRead Less
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