Beginning in the fall term of 2016, Dartmouth placed all undergraduate students in one of six House communities, similar to residential colleges, including Allen House, East Wheelock House, North Park House, School House, South House, and West House, alongside independent Living Learning Communities. Dartmouth used to have nine residential communities located throughout campus, instead of ungrouped dormitories or residential colleges. The dormitories varied in design from modern to traditional Georgian styles, and room arrangements range from singles to quads and apartment suites. Since 2006, the college has guaranteed housing for students during their freshman and sophomore years. More than 3,000 students elect to live in housing provided by college.