The new Sussex Consortium for students ages 3–21 with special needs or educational classifications of autism will open Sept. 16. The school’s amenities include an indoor pool for therapy and swim lessons – which will also be home to the local Special Olympics swim team; two gyms; a small theater; a library; an occupational wing for job skills training; and a 600-square-foot apartment for independent living skills practice. Initially, about 200 students will attend remotely or in person.