Jeffrey Costello

Tribeca NW Real Estate

18 Years of Experience

(204)

$52M

Total Sales Last Year

Years of Experience

303

Recent TransactionsTransactions from the last 3 years

$676.8K

Average Price Point

Service Areas

Bellevue, WA Fall City, WA Issaquah, WA Kirkland, WA Maple Valley, WA Mercer Island, WA North Bend, WA Preston, WA Renton, WA Sammamish, WA Snoqualmie, WA

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About Jeffrey Costello

Experience when it matters most! 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.

OTHER LANGUAGES

English

Specialties

Sellers
Buyers
Residential Property
Commercial Property

Buyer's Agent, Listing Agent, Consulting, Commercial R.E., Property Management, Landlord

Awards

2025
TOP AGENT
Mercer Island, WA

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Jeffrey Costello's Reviews & Ratings

204 Reviews

(5/5)

Note: Reviews may include other agents on their team

What clients say about this agent....

Responsive
Communicative
Professional
Knowledgeable
Outstanding
Attentive
Great for new buyers
Trustworthy
Available Remotely
Hard working

Leslie Ross

Review for Member: Leslie Ross

October 9, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

We cant say enough good things about David! From the very beginning, he has been the kindest, most genuine, and helpful person we could have asked for. He truly went above and beyond to help us find our dream home, always patient, understanding, and willing to answer every question along the way. His professionalism and warmth made the entire process smooth and enjoyable. We are so grateful for all his hard work and dedication aEUR" we couldnt have done this without him! If youre looking for a realtor who truly cares, David is the one!

Ernesto Martinez

Review for Member: Ernesto Martinez

September 10, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

After interviewing several realtors, we chose Emily because she truly listened to our concerns and suggestions, then thoughtfully adapted her strategy to align with our goals. Throughout the process, she was patient and respectful of our pace, yet firm and confident in her recommendationsaEUR"always striking the right balance between guidance and flexibility. Her professionalism and ability to tailor her approach made all the difference, and we couldnt be happier with the outcome.

Ashley Costello

Review for Member: Ashley Costello

August 21, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

David is an excellent realtor Helped us in every situation Very nice help us find our dream home Got us the best deal I highly recommend using David if I ever bought another property in the future, I would definitely use them again. Thank you David for everything.

Robert Wells

Review for Member: Robert Wells

August 18, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Emily is incredibly professional and helpful the entire way through highly recommend , she got our house sold over market listing in 5 days! We followed her recommendations and it worked!

Sohrab Siddiqui

Review for Member: Sohrab Siddiqui

August 15, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

We worked with Ben Meadows for over 10 months in our home search, and his professionalism, kindness, and dedication truly stood out. He always kept our best interests in mind, was incredibly responsive, and guided us through every step of the process with patienceaEUR"even when we were probably not the easiest clients to work with. Bens local knowledge and expertise made navigating the market much less stressful, and his tireless efforts ultimately helped us find the right home. We are grateful for all his hard work and highly recommend him to anyone looking for a trustworthy real estate professional.