Crain’s New York Business has some recent rent data showing that the West Bronx continues to heat up — albeit slowly and maybe inequitably. What’s really interesting about this report is that it doesn’t seem to find outright gentrification so much as the solidifying of a moderate-income housing market, which is beginning to displace the neighborhood’s poor.
Much of the West Bronx was developed in the early 20th century for market-rate, middle-class urban housing; now, the housing stock seems to be aligning with that market sector, again. Here’s an old image of the early phase of Bronx and upper Manhattan development at the end of the 19th century, as the large lots of detached houses were being replaced by mid-scale apartment buildings:
Notably, the patterns of the West Bronx (between Manhattan and the Bronx River), including street layout, lot sizes, and early architecture, were built, simply, as a natural extension of New York City, which could no longer be contained in Manhattan. Unlike the other boroughs, which were developed independently of New York City, there was no distinction between Manhattan and the Bronx (other than the Harlem River) until the five boroughs were established in 1898.
This is why street numbering and house numbering in the Bronx are continuations of the same in Manhattan; and why you will never find the same two digits at the end of a Manhattan ZIP code as you will at the end of a Bronx one. The latter fact is because, in the days of postal codes, the post office treated both boroughs as, simply, “New York,” due to their shared history. Thus, a building in the Gramercy Park section of Manhattan would have had the address, “New York 10, N.Y.,” while a house in the Kingsbridge section of the Bronx would have been, “New York 63, N.Y.”