Is financial contribution to the expenses of publicizing a charity or the rent of its headquarters considered an ongoing charity (Sadaqah Jariyah)?

Donating money to build a headquarters for a charitable organization is considered an ongoing charity (Sadaqah (definition) Jariyah), because the headquarters serves the needy and facilitates acts of goodness and righteousness. It is a means to do good, and means are given the ruling of their ends. One must ensure that the organization's activities conform to Islamic Sharia (definition).