These properties are scheduled to be demolished July 1, 2015. One other property on this block was demolished (a large corner building) and the parcel will be turned into a fenced parking lot for the short term. Hopefully someone will eventually purchase the lot and build something to benefit the surrounding neighborhood.
In the meantime, have a look at 923 while it’s still standing. Sadly, the condition of this property only declined since 2011 when the original information was posted.