I was investigating my building on the NYC DOB web site. I noticed that while there is a Certificate of Occupancy for my building's address, in fact the CofO covers two addresses (one which doesn't exist as far as I know) and the description of the building is for the one next door. I contacted the DOB and was told there is no CofA. The building was built before 1910. The building next door (the one which the CofA describes) is much later.
Is this situation common? What happens if the building owner creates a new apartment in the building (thus changing the apartment count)? Are CofAs a new(er) thing?
Would someone have the name/email address of a professor in NYC area who studies the DOB and its history and practices?
Thanks.