Jeffrey Costello Real Estate Agent at Tribeca NW Real Living

Jeffrey Costello

Real Estate Agent at
Tribeca NW Real Living

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Usually responds in 30 mins


  • Listing Marketing
  • First Time Home Buyers
  • Investment Properties
  • Relocations
  • Retirement Specialist
  • Luxury Specialist
  • Waterfront Specialist

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Agent Highlights

Jeffrey sells properties fast - selling more than 49% quicker than the average Issaquah agent.
Jeffrey gets the job done - completing more sales than the average Issaquah agent by 22%.
Jeffrey is a SFH expert - working with over 75% more single family homes than the average Issaquah agent.

Jeffrey's Transactions

  • Redmond, WA
    Single Family Home
  • Issaquah, WA
    Single Family Home
  • Renton, WA
    Single Family Home
    Jeffrey outperformed the market - selling this property for 12% over asking price
  • Snoqualmie, WA
    Single Family Home
  • Des Moines, WA
    Single Family Home
  • Sammamish, WA
    Single Family Home
    Jeffrey outperformed the market - selling this property for 24% over asking price
  • Kent, WA
    Single Family Home
    Jeffrey helped a buyer purchase this property for 13% under asking price

More about Jeffrey Costello

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. His current endeavors include expanding his team of local experts, now known as the Tribeca NW Real Living, and ...
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University of Washington

Other Certifications

CRS, ABR, CNE, CDPE, University Of Washington RE, Certified Probate Real Estate Specialist (CPRES), Certified International Property Specialist (CIPS), Accredited Buyer's Representative (ABR®), Certified Residential Specialist (CRS), Certified Investor Agent Specialist (CIAS)

Other Languages

Australian, Irish, British, Canadian

License Number


Jeffrey Costello's Reviews & Ratings

Tell us about your experience with
Jeffrey Costello

  • Jeffrey never responded to my request

      Jeff will do what he has to do to make money off of you and then be done with you and move on. Truly a selfish slumlord sellout sexist jerk who will threaten you with his clown lawyer!

    • Crystal & Jeff make an amazing team. I initially met Jeff while visiting an open house in the Kings Gate neighborhood in Kirkland/Juanita. I was initially unable to find a home that met my criteria (size/price), however Crystal was an amazing resource for finding properties. With the guidance Jeff provided I was able to learn a great deal about the Kirkland housing market.

      - Chris B.
    • When we started our home search, we had a very vague idea of the kind of house we wanted. After meeting Jeff (via Zillow), we started our house hunt by looking at a varied bunch of houses with Jeff, and Jeff was very quick at understanding the kind of houses we were looking for and seemed to have a better idea of what we wanted than we were able to articulate. He also helped us narrow down on the neighborhood (Issaquah Highlands) we might like. The real estate market was very hot and after making a couple of offers which were outbid, we decided to take a break. But Jeff was looking out for us. After a couple of months of being on a break from house hunting, Jeff gave us a call with a great house which perfectly fit our needs in the neighborhood we wanted. We made an offer and we got it. Jeff was incredible in the offer-to-close process. He was very helpful in connecting us with a lender which helped us close quickly and without hassle. He also referred us to general contractor for some remodeling we wanted to do. Jeff was always available, reliable, knowledgeable and patient. Looking back - i think Jeff's advice did help us avoid from overpaying or making an offer on the wrong house. We are happy with the house we ended up buying and Jeff was a great partner in making this happen.

      - Madur K.
    • Jeffery called me and informed me of an opportunity to sell my home that had been going through a process of a deed in lieu. He explained everything I needed to know and with his information and reasurrance, we came to a very profitable deal that I must say everyone was very happy with. His knowledge and immediate return on any question I had was very timely and made the transaction easy. Being that I lived out of town, our communication and interaction was a great comfort. I would definetly recommend him to anyone that was interested in a real estate transaction

      - Blayne and Barb
    • Jeff and his team were instrumental in the purchase of our home. The timeframe to close was tight with several unique obstacles to overcome, but Jeff got us in the house on time with the terms we wanted. The experience went so well that I have recommended Jeff to my clients.

      - Randal L.
    • Our experience selling our house with Jeff as our agent was beyond exceptional. Not only was he responsive to our questions but more often than not provided us answers before we ever reached the question. His knowledge of the area and the market we outstanding. I would highly recommend Jeff to anyone that is looking for an agent

      - Larry & Kim
    • Jeff did a fabulous job managing a complex transaction for me. We got everything we wanted even though the market shifted a bit underneath us. I would happily use Jeff again in the future and recommend him to anyone.

      - Joe B.