The people paying to put the building up like to name things because it's part of their branding (so, a security company building a head office may call that of

The people paying to put the building up like to name things because it's part of their branding (so, a security company building a head office may call that office "shield house"), or because they're trying to tie their development into local history to appeal to planning officers (so, this building is near a bus terminal, and it's on terminus street), or because the person paying the money wants to leave a bit of legacy.