From 1892 to the late 1930s, Neuilly-sur-Marne saw its population increase by nearly 400%. This small rural town has gradually become an urbanized town. This development was mainly due to the creation of subdivisions. Some of the oldest are located on the edge of the old village. This was the case of the Pré fleuri, Verdant and Guette subdivisions created at the very beginning of the 20th century. Who were these new inhabitants? Where did they come from? This walk with the municipal archives will also introduce you to the architects who have shaped all the suburban areas of the city.