| IBM Somers Office Complex | |
|---|---|
Regional headquarters | |
![]() Interactive map of IBM Somers Office Complex | |
| General information | |
| Type | Corporate Offices |
| Architectural style | Modernist |
| Location | Somers, NY |
| Coordinates | 41°19′15″N73°40′43″W / 41.32072°N 73.67855°W /41.32072; -73.67855 |
| Construction started | July 1984 |
| Completed | October 1989[1] |
| Cost | $55 million |
| Owner | Sebastian Capital |
| Dimensions | |
| Other dimensions | 750 acres (3.0 km2; 1.17 sq mi) |
| Technical details | |
| Floor area | 1,200,000 square feet (110,000 m2) |
| Design and construction | |
| Architect | I. M. Pei |
| Architecture firm | Pei Cobb Freed & Partners |
TheIBM Somers Office Complex is a complex of five office buildings formerly owned and occupied byIBM inSomers,New York,United States.[2] Situated on a 730-acre (3.0 km2) campus, theI. M. Pei-designed, glass pyramid-topped structures formerly housed the regional headquarters for the IBM corporation.[3]
Begun in 1984, themodernist 1,200,000-square-foot (110,000 m2) complex has been described as a "futuristic fortress".[4]

The complex was originally conceived in 1983 following the successful approval of aPepsiCo corporate campus nearby.[5] Constructed between 1984 and 1989, the $200 million complex allowed consolidation of 3,000 employees previously spread among several facilities in the surrounding area.[6] The complex has overcome initial complaints over excessive water usage and light pollution to become a business fixture in the Somers area.[5][7]
On September 29, 2016, IBM sold the property to a company called 294 Route 100, LLC (the address of the property) for $31.75M. The transaction was recorded on October 18, 2016. At the time of sale, the property was assessed with a full value of $122,150,943 and taxable value of $16,185,000.[8]

Approximately 2,000 IBM employees in Global Services, Software, and the Systems and Technology Group[4][9] once occupied 1,200,000 square feet (110,000 m2) of office space in 730 acres (3.0 km2) hilltop campus consisting of four triangle-shaped main buildings and a central service building, each topped with a glass pyramid.[2][10]
In 1990 the Somers complex staff was givenIEEE Corporate Innovation Recognition "For the development of the multilayer ceramic thermal conduction module for high performance computers."[11]