Suburban office parks are dying -- Mother Nature Network

Suburban office parks are dying because young people don't want to drive there | MNN - Mother Nature Network

There are several reasons, one of which is that urban young people are not getting driver's licenses like they once did.  This is an interesting study and you can read the whole thing here.

"Suburban office buildings that have become obsolete due to car-centric and removed locations — and which do not have some factor that will remedy these traits in the future (such as a planned transit station or new highway exits) — are unlikely to achieve market-average rents as leases roll. In extreme cases, properties that are incurably obsolete — primarily those at undesirable locations or with building sizes or for plates that tenants now find either too large or too small — may never lease again."