How much money is a double brownstone block worth?

Many sellers of property in Manhattan may or may not understand the transaction from the perspective of the buyer. One of the aspects of a brownstone in Harlem is the appeal of the block itself. 10 years or more ago, there were many more boarded homes in Harlem than there are now. Nowadays, you might one boarded home on a given block in Harlem or none. However, what about the condition of the homes and how do compare a double brownstone block, one with brownstones on both sides and one with brownstones on one side and perhaps apartments buildings on the other side? How does this affect value?

Most buyers that come to visit a home usually comment that they like the block or the block seems okay without really asking or getting into the details of the makeups of the building on the block themselves. Certainly, if your neighbor is running an SRO or there are many apartment buildings on the block, the feel is going to be more transient.

Every now and then you see a row of brownstones that is by itself and most of the rest of the block is apartment buildings. One such property to my surprise has not sold in Central Harlem but this could be why. The block has about 10 homes and the rest are apartment buildings. Perhaps this is why the property has lingered on the market. Take a look at the two photos below. Which block do you find more appealing? What do you think?