Data center campus · 486 Arsenal Way, Watertown, MA 02472, Middlesex County, Massachusetts
Centersquare BOS4 (Watertown)
Operating
as of Oct. 24, 2026
Centersquare (Csquare) markets colocation at its BOS4 data center in Watertown, with 19.1 MW of utility power and about 39,000 sq ft of usable space. Also known as: Csquare Watertown BOS4.
Power19.1MW reported · stated
Floor area38,977sq ft
Who is behind it
ProjectCentersquare BOS4 (Watertown)Also: Csquare Watertown BOS4
Developer and teamCentersquare (Csquare)
End userNot found in the recordsNot yet named in any record or credited report we have found.
The record, newest first
Csquare's Boston page lists Watertown BOS4 with 19.1 MW of utility power and 38,977 sq ft of usable space. (Csquare (Centersquare), Oct. 24, 2026; Csquare (Centersquare), Oct. 24, 2026)
Conflicts and open questions
- Separate campus from BOS1: Watertown and Waltham are different towns several miles apart.
- Coordinates approximate from the Arsenal Way address.
The full record
- Power note
- Utility power capacity stated by Csquare; 4 MW UPS and 14 MW generator capacity also listed. IT load not stated.
- Evidence
- Primary public records
- Size class
- Under 50 MW (outside main scope; kept for completeness)