Between the city’s retail core and South Lake Union, our Plaza 600 business center is a strategic location in the heart of downtown SeattlEast It puts your business near businesses from finance, law, engineering and more – with excellent links across the city via the nearby I-5 or the streetcar statioNorth Plaza 600 is an iconic 20-story office tower with large windows and abundant natural light, creating a relaxed working environment. And when you want to get away from your desk, you’ll find convenient coffee shop on-site – the perfect place to take a break.