As we say here at Home Economic, context is important. Recently I heard the figure of twenty homes as a sweeping number with respect to an impact on a neighborhood. In order to evaluate an impact, it is necessary to know how many homes total constitute a typical neighborhood.
A standard city block with a sidewalk out front and an alley to the back generally has twelve to fourteen homes per city block. So if you were to think that your neighborhood was your block and two to the north, two to the east, two to the south, and then two to the west - you would have about 230 homes in total. In this case, twenty homes is about ten percent. If all these homes were in poor repair, for instance, this could be noticeable and have a negative effect on the outward appeal or from the street view.
Neighborhoods are quite a bit bigger than a cluster of two blocks to either side. Here’s a neighborhood map of Minneapolis, for example.
The USPS offers a useful tool for direct marketers which calculates the number of residential mail stops on mail carrier route (it’s called Every Door Direct Mail). We can use it here to help estimate the number of households by neighborhood. The first map is for the Armatage neighborhood. The number of homes comes in at 2620. Since the routes overlap into Fulton, let’s use a number of 2400. In this case twenty homes in the Armatage neighborhood makes up 0.83% of the total.
The Fowell neighborhood on the other side of town is know for having a larger share of corporate owned rental housing. Here, our USPS tool tells us that the neighborhood contains 2182 properties. Again rounding down is appropriate as the one route that runs on the west side of the cemetary is in the Victory neighborhood. Let’s use 2000 homes, in which case twenty porperties is 1% of the total.
It’s hard to see where one percent of a total number can have an effect on quality of life issues.
When a raw number gets tossed into a conversation as if it were a grenade ready to explode, always ask for context.