Winston & Strawn Relocates Chicago Office to 300 North LaSalle

CHICAGO – October 13, 2025 – Winston & Strawn LLP announced today that it has relocated its Chicago office to 300 North LaSalle, a landmark riverfront tower.

The move from 35 West Wacker – Winston’s Chicago home for the past 35 years – represents the next phase of the firm’s evolution. Featuring innovative technology and thoughtful design, the new space enhances collaboration and elevates client service in this key market, which has been integral to the firm since its founding in the Windy City in 1853.

“Our new Chicago office is a significant investment in our clients, lawyers, and business professionals, and it reflects our strong commitment to the cities where we live and work. This new space is an example of the elevated client experience we are committed to providing as we continue to grow globally,” said Chairman Steve D’Amore.

Guided by a forward-looking approach to space management, the office was intentionally designed to encourage teaming and foster collaboration. The space includes dedicated client visiting offices, a convertible mock courtroom and multipurpose meeting areas, and a large modern café with a pool table and fireplace. Advanced technology supports conferencing, space management, and office booking. This investment precedes additional office relocations and enhancements planned in the U.S. and abroad.

“Chicago has always been an essential part of our firm’s story, and the new office reflects our ongoing investment in the people and clients who have shaped that success. Equipped with modern technology and adaptable features, the space fosters seamless connection for anyone – whether for colleagues or clients visiting from across town, elsewhere in the country, or abroad,” said Chicago Office Managing Partner William O’Neil.

The new Chicago office underscores the firm’s commitment to being a good corporate citizen in the communities where it operates. The LEED Certified Platinum space incorporates advanced energy-efficient systems, water conservation measures using the Chicago River, sustainable materials, and waste-reduction programs.

Winston is the oldest and one of the largest law firms in the city, with nationally recognized strength in core practice areas such as mid-market private equity and high-stakes litigation. The firm represents Fortune 500 companies and leading Chicago institutions, and has been involved in many of the city’s most high-profile legal matters over the past 170-plus years.