Sean Durkin, SIOR, MSRE, CCIM

Lee & Associates Pacific Northwest - Seattle

Specializing in Tenant & Landlord Representation


Sean Durkin, SIOR, MSRE, CCIM

D: 206.773.2682
C: 425.830.2647


Specializing in Tenant & Landlord Representation

Sean Durkin entered the commercial real estate industry at an early age, becoming partial owner of an industrial building at the age of 15 using money he earned working construction, and held positions with four commercial real estate companies prior to joining Lee & Associates. His focus is serving Tenants and Landlords in the leasing, sales, and asset management of industrial, office, and retail properties in King and Pierce County. In 2017, Sean earned his Masters of Science in Real Estate (MSRE) at the University of Washington.

Sean’s education, background in brokerage, ownership, and construction offers a diverse skill set, strong work ethic, and creative thinking. This combination has served his clients well, offering diverse solutions to their challenges. His cut-and-dry method of analysis and loyalty make him a great asset to clients in their execution of both short and long-term real estate and business goals. As an owner and broker, he understands the importance of managing client/tenant expectations and maximizing property value. He provides asset management advisory services to his clients, going above and beyond a transactional broker working to meet client goals. Sean is deeply involved in the local commercial real estate community, participating in and chairing several NAIOP committees, with one event he co-runs raising over $100K annually for Big Brothers Big Sisters.

In his free time, Sean enjoys hiking, backcountry skiing year-round (he recently hit 101 consecutive months of skiing), fishing, boating, and construction projects.

Career Summary

Since mid-2010, Sean has been involved in over half a billion dollars in gross deal volume representing 5 million square feet (SF) leased or sold. Sean currently manages (asset level) and represents 400,000 SF of privately-owned commercial space (100% leased), and over 3 million SF of listed properties.

Professional Affiliations

  • Society of Industrial & Office Realtors (SIOR) - Director of Membership

  • Certified Commercial Investment Member (CCIM)

  • Commercial Brokers Association (CBA)

  • National Association of Industrial & Office Properties (NAIOP) Washington

    • Past Chair of the Real Estate Challenge Committee

    • Past Chair of the South Sound Committee; co-runs fundraising for the BIG golf tournament


  • 2017 to present: Lee & Associates Commercial Real Estate Services

  • 2010 to 2017: The Andover Company


  • B.A. in Business Administration - Seattle University's Albers School of Business & Economics

  • M.S. in Real Estate - University of Washington Wright Runstad School of Real Estate

Awards & Recognition

  • SIOR National - 3Q  2021 #1 Industrial Sale - $163M

  • SIOR WA Chapter - 4Q 2022 #1 Industrial Sale - $9.25M

  • CoStar Power Broker Award 2018, 2019

  • Top Office Earner Award 2018, Top 5 Earner 2019-2022

  • Lee & Associates National Circle of Excellence 2020

Community Involvement

  • Active in leadership on three HOA boards spanning several construction, infrastructure, new development projects & lending negotiations

  • Co-Chairs fundraising for the Big Brothers Big Sisters Golf Tournament

  • Director of Membership - SIOR

  • Pierce County SD - Elected Position