Wow, that's horrible. I would probably get nothing done in that office. Mine is silent apart from occasional talking, but even then for anything extended/scheduled people tend to grab a room so it doesn't disturb others.

I would recommend getting some better headphones/foam earbud tips to block the noise. I have some earbuds with Comply foam tips, which block noise extremely well at safe listening volumes to the point where I can hear my music clearly on the train, so office noise is no issue.