SIGNALDATAInsights. For the People.
Preview
Data center campus · 1275 K St. NW (DC1) and 1099 14th St. NW (DC2), Washington, D.C. 20005, District of Columbia County, District of Columbia

CoreSite Washington, D.C. campus (DC1 and DC2)

Operating as of Oct. 28, 2026

CoreSite runs a two-building colocation and interconnection campus in downtown Washington: DC1 on K Street (more than 22,000 sq ft) and DC2 on 14th Street (more than 24,000 sq ft), which the company markets together as 46,000-plus square feet with 30-plus network providers. DC1 is tied to DC2 and, over dark fiber, to CoreSite's Northern Virginia campus, and hosts the Any2Exchange peering point. Also known as: CoreSite DC1, CoreSite DC2, 1275 K Street NW, 1099 14th Street NW.

Cite← District of Columbia data centers
District of Columbia CountyCoreSite Washington, D.C. campus (DC1 and DC2) · Operating
PowerNot statedNot reported in the records found
Floor area46,000sq ft

Who is behind it

ProjectCoreSite Washington, D.C. campus (DC1 and DC2)Also: CoreSite DC1, CoreSite DC2, 1275 K Street NW, 1099 14th Street NW
Developer and teamCoreSite
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. CoreSite's market page lists DC1 at 1275 K St. NW and DC2 at 1099 14th St. NW as its Washington, D.C. campus. (CoreSite, Oct. 28, 2026; CoreSite, Oct. 28, 2026; CoreSite, Oct. 28, 2026)

  2. Trade press reported that CoreSite opened DC2, a second downtown building of more than 24,000 sq ft near DC1. (DatacenterDynamics, Feb. 22, 2019)

  3. CoreSite announced low-latency news providers as tenants at its 1275 K Street building and described it as one of the region's first carrier-neutral meet-me rooms. (CoreSite Realty Corp. via PR Newswire, Aug. 10, 2010)

Conflicts and open questions

  • Treated as one campus because CoreSite markets DC1 and DC2 together as its Washington, D.C. campus; they are separate buildings, which DatacenterDynamics describes as around the corner from each other.
  • Square footage 46,000 is CoreSite's stated campus total (46K+); per-building figures are 22,000+ (DC1) and 24,000+ (DC2).
  • The DC1 page says it takes a single utility feed from what it calls the White House utility grid; it does not name the utility, so utility is left null.
  • Coordinates are a rough midpoint between the two addresses.

The full record

Status note
CoreSite lists both downtown buildings as one Washington, D.C. campus offering colocation and interconnection; operator page, accessed Oct. 28, 2026.
Power note
CoreSite's pages give no megawatt figure for either building.
Evidence
Primary public records
Size class
Under 50 MW (outside main scope; kept for completeness)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.