By the time the Bank was finally ready to build in the late 1960s, it was decided to commission a new design. The Marani firm (now Marani Rounthwaite & Dick) and Arthur Erickson were hired as associate architects, and in 1969 their new design was presented to the Bank. It preserved the original granite building, partially enclosing it in a vast glass courtyard flanked by two glass towers. Construction began in 1972 and continued throughout the decade. The building was completed in 1979, and staff were fully installed by 1980. One of its outstanding features was the enclosed courtyard's large tropical garden, bordering a shallow pool. The garden is open to the public and is a popular setting for wedding photographs, especially during Ottawa's long, cold winters. It also serves as the forecourt of the Bank's Currency Museum, which houses artifacts from the 100,000-item National Currency Collection.