The maps illustrate the layout of the town center of Islip between 2010 and 2015. Overall, the complete transformation of Islip town has occurred in the area, including the addition of new facilities built and more housing provided.
In the year 2010, there was a main road running from east to west across the center of Islip. The road was lined with two rows of stores. The northern side of that was a rural area and two parallel housing areas on the opposite side. A school was located to the left of these accommodations while the park stood on the right. Both of them were connected to the main road by side roads.
Five years later, the most notable change was the construction of a highway circling the town. The main street was converted into a pedestrian precinct and the stores to the north of it were demolished. In their place, a bus stop and a parking lot were built with a newly constructed shopping mall in the middle. Near the shopping mall, there was also a new housing area, which can be accessed via a minor road from the divided highway. More accommodations also occurred to the south of the pedestrian zone. The park was made smaller to make way for this development while the school on the left remained the same.