A very large office building built in 1981 is going to be coming up on the need for some expensive plumbing repairs very soon, if there's no record of it being

A very large office building built in 1981 is going to be coming up on the need for some expensive plumbing repairs very soon, if there's no record of it being done recently. And probably contains lots of other unrefurbished space that couldn't be rented out at grade A office space $/sqft rates. Interestingly enough the building does seem to have a marketing website which shows several full-floor office spaces for rent with floor plans, but no photos of the space.