Jeffrey Costello

Tribeca NW Real Estate

18 Years of Experience

(193)

$52M

Total Sales Last Year

Years of Experience

243

Recent TransactionsTransactions from the last 3 years

$684.5K

Average Price Point

Service Areas
About
Recent Sales
Contact Information
Social Media
Specialities
Awards

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.

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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Recent Sales

Showing 4 out of 243

We only display transactions from the last 3 years. To view transactions older than 3 years, please follow these steps:

1. Click the "View All Sales" button below.
2. Use the "Year" filter to select the desired past years.

Date

Address

Price

Represented

07/25/2025

13218 42nd Avenue W Mukilteo, WA 98275

Sold For $1M

07/25/2025 Buyer

07/22/2025

895 Snoqualm Place North Bend, WA 98045

Sold For $1.3M

07/22/2025 Seller

07/22/2025

48 Bennett Lane Oakville, WA 98568

Sold For $505K

07/22/2025 Buyer

07/18/2025

0 1st Ave S Seattle, WA 98198

Sold For $10K

07/18/2025 Buyer

Jeffrey Costello's Reviews & Ratings

193 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

Denzel Ahmad

Review for Member: Denzel Ahmad

July 19, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

David gets all the stars! He the best agent in Washington! Professional,Prompt and persistent, David is a real trippple threat! This was my first property purchase and David was able to make it feel effortless. Always on your side! Always invited to the BBQ!

Roger Donaldson

Review for Member: Roger Donaldson

July 2, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Lawrence Morris I was told my house was unsaleable my some other Realtor. This gave me a nightmare. That next morning I called Lawrence Morris. Not only did Lawrence say he could sale my House but he knew a guy that maybe interested. I had multiple offers the next day, and had my house sold in less than three days! This guy knows his job! Thank God I called Lawrence Morris.

Julie Wulfekuhle

Review for Member: Julie Wulfekuhle

June 27, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Brooke was so helpful and when I wanted to see a property she had it booked within hours. She was worked really hard to help me find my forever home. Once I found a home she made the process super easy and quick

Kirthivel Ramesh

Review for Member: Kirthivel Ramesh

June 12, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

I had a great time working with Rick as my realtor! He was always patient and explained everything, and made me feel confident in purchasing my first home in Seattle, WA. He also made sure I knew what I was getting into and ensured that I got the best price for the property. Highly recommend for anyone looking to get into their first home!

Katf416

Review for Member: Katf416

June 12, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

We had the pleasure of working with Katie Rorbach who is incredibly charismatic and professional. She made the entire process feel empowering and smooth from start to finish. What stood out most was how she never once pressured us. She made it clear from day one that we were in charge, setting the timeline, pace, and direction, while she provided expert guidance and support every step of the way. She struck the perfect balance between being fiercely knowledgeable and genuinely warm, and we always felt like her top priority. Her negotiating skills were impressive and clearly came from a place of experience and dedication, yet she carried the stress of the transaction so that we never had to. We felt informed and supported, but never overwhelmed. If you're looking for someone who will advocate for you, respect your decisions, and make you feel confident and cared for throughout the real estate process, Katie is the one you want on your team!