Griswold Elementary School 133 Heather Ln, Kensington, CT06037 Mary. E. Griswold Elementary School is a large school in the Kensington section, which is the westernmost part of the…More town of Berlin. The school educates approximately 600 students on a yearly basis. The school has a playground and two gymnasiums on-site. It is also one of the most popular spots in town in the winter because of its large hill, which is great for snow sledding and tubing.