At first glance, I thought this was the old carriage house of 4502 Lewis Place, but when I got home and looked at the picture, and also checked Sanborn maps, I have come to the conclusion that after the neighborhood declined, this four family flat was built on the property to raise more rental income. The middle door led to the upstairs apartments, and the flanking doors led to the two first floor units. Was it rebuilt from a carriage house building? Perhaps.