High profile Congressional leaders such as House Speaker John Boehner (R-Ohio), House Minority Leader Nancy Pelosi (D-Calif.), House Minority Whip Steny Hoyer (D-Md.) and Senate Minority Leader Mitch McConnell (R-Ky.) have all attended events at Credit Union House this year, McCue said. In total, 75 members of Congress from 22 states have visited Credit Union House for events in 2013, she added.

The facility is also used to host credit union executives and volunteers visiting Washington to lobby for industry issues. On Oct. 3, CUNA used the facility to produce a virtual rally to support preservation of the credit union tax exemption.

The townhouse, located a few blocks from the U.S. Capitol, was constructed following the passage of H.R. 1151, the historic 1998 bill that expanded credit union membership eligibility. According to the facility's website, the location positioned the credit union industry as a key player in the Washington political scene.

John Magill, CUNA executive vice president of government affairs, said the Credit Union House's convenient Capitol Hill location has made it easier for members of Congress to appear at events in between their votes.

"We have an established, permanent identity and entity on Capitol Hill. We're not renting a space. We are there fulltime, today, tomorrow and into the future and every organization can't say that. Credit unions can," he said