Stoops Out Lights On

What's interesting about this block in Park Slope is that virtually the entire side of the street consists of brownstones that have had their stoops removed, entrances placed at ground level and these concrete bench/tree planters placed in front. They also all have the same light fixtures. The opposite side of the street has many similar buildings as well. There are some variances amongst them but at ground level they are all pretty much the same. If memory serves me correctly, this is St John's Place. Anyone know the story?