The Seattle Mariners turn to B&D to understand how to keep their ballpark in first-class condition over its lifespan

Project Highlights

  • Lease negotiations between the Seattle Mariners and the PFD were finalized in Spring 2019, including a naming rights deal with T-Mobile.
  • The Mariners have proceeded to implement some of the recommended improvements and have shared $4.6M in profits to go toward improvements.

T-Mobile Park

Ballpark Long-Term Capital Needs Assessment

Looking toward lease negotiations, the Seattle Mariners and the public owner of its ballpark sought to evaluate the extent, cost, and timing of potential capital improvements that could be anticipated for the 20-year-old Safeco Field.

As part of a structured CapEx process, B&D developed an improvements-to-date or “baseline” matrix that quantified previous levels of capital investment. It was also important to conduct a detailed facility assessment to inspect building systems and coordinate an online survey to understand patron attitudes and preferences.

B&D performed an economic and fiscal impact study to understand public tax revenues and economic activity generated by ballpark operations. This analysis informed the projected return on investment, payback period, and net present value for potential seating changes at the ballpark. Ultimately, these advisory services served as a precursor to lease renegotiations. The Seattle Mariners and the PFD finalized a new 25-year lease in 2019 and are using the capital improvements assessment to ensure the newly named T-Mobile Park remains a first-class ballpark.


original date of opening


lease signed in 2019


committed over 25 years

“B&D’s unique understanding of the business of professional sports, public/private relationships, and the economic impacts of large venues, along with their ability to analyze market conditions and in turn compile that information into a very clear and concise format, truly speaks to the value they bring to clients in developing successful strategies to address changing business needs.”

Joe Myhra, PE, Former Vice President Ballpark Operations, Seattle Mariners

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