Halle Costello

Client Support

Contact Info

Halle Costello provides essential operational support and client assistance to ensure a seamless real estate experience at Tribeca NW Real Estate.

King County

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

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With a Local Expert You Can Trust

Moving to a new area? Buying or investing? Our easy-to-read guides give you the local insight and practical tips to help you choose with confidence.

Our freshly handpicked properties

New to the market

Explore the newest listings before anyone else. From small escapes to grand estates, find your next home among the freshest properties on the market.

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Success Stories

Hundreds of satisfied clients

"I keep getting unsolicited and unappreciated emails from Brittany Arend."

"The best"

"Rick is so nice and was very patient as we were very specific in what we were looking for. I highly recommend working with him and would not hesitate to work with him again in the … Read MoreRead Less

"Kevin was the best real estate agent I’ve ever had, I’ve had many experiences where real estate agents were looking at possibilities instead of what you want. Kevin knew what I wan… Read MoreRead Less

"Ashley was absolutely amazing throughout our home-buying process! She was extremely communicative from start to finish, always checking in, answering our questions, and keeping us … Read MoreRead Less

"My wife and I started looking for our home and really didn’t like what was on the market. We put our housing search on hold. Then a few days later a house we liked was put on the m… Read MoreRead Less

"Mrs. Wise was a fantastic person to work with. Always made time to make sure our questions were answered and just made the whole buying process a breeze. Thank you for everything!"

"We worked with Benji Dimer, he did a fantastic job in showing us homes, being available and helping us make a successful offer. Would recommend to anyone looking for a home in the … Read MoreRead Less

"I highly recommend Brittany! She has guided me through several buys and sales and is always super responsive. For any repairs that I have needed Brittany has known someone to hand… Read MoreRead Less

"Brittany Arend, I honestly can’t say enough wonderful things about her. She was quite literally amazing. She always answered my 5 million questions, concerns, and comments and neve… Read MoreRead Less

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King County

With a Local Expert You Can Trust

New to the market

Success Stories

Making moves? I’m here to help.

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