This is a source-attributed discovery row. It can help you find a place and its citations; it is not a DataCenterData finding that the facility is distinct or currently operating.
Reported geography
Source-reported location for Markley Group Boston (One Summer Street / BOSIX).
Approximate source coordinates; this is not a parcel claim. Nearby source points are combined into one accessible target that opens this exact map scope. View these exact rows on the interactive map →
Source row snapshot
- Operator as published
- Markley Group
- Address and locality
- 1 Summer Street · Boston · Suffolk County · Massachusetts · 02110
- Official metro area
- Boston-Cambridge-Newton, MA-NH
- Source-reported status
- operational
- Provider facility type
- data center
- Reported capacity
- Operational: 30 MW (source-reported; boundary not independently verified; MW measure not stated by provider)
- Source freshness
- 6 October 2026
- Location precision
- approximate
- Compute Atlas confidence label
- confirmed (provider's classification; not a DataCenterData check)
- Stable directory ID
dcd-dir-000911
Reported details
Source-reported by Compute Atlas; not independently verified by DataCenterData. Provider wording is kept; long provider notes are shortened and marked …; unknown is not zero; none of these values is totaled, ranked or compared.
- Cooling
- Closed-loop
Provider notes
Water. Bi-directional chilled-water loop combining five independent chiller plants in an N+1 configuration.
What the source record says
Markley's original flagship facility (1 Summer St, atop former Macy's), 920,000 sq ft, largest commercial internet exchange point (BOSIX) in New England. Distinct facility from the separately-tracked Markley Lowell (One Lowell Data Center) site.
Any MW value is reproduced as source-reported context. Its measurement boundary is not established consistently enough for comparison. Unknown is not zero.
Status history supplied by the source
- 1999 · source-reported operational
Built late 1990s
Sources and attribution
These sources are listed for the whole row. Unless a figure links to its own source, the provider does not mark which one gave it, so a figure may not appear in every source.
- One Summer St, Boston · Data Center Map
- Macy's closing stores in downtown Boston data center building · The Boston Globe
- Data centers, AI, and Massachusetts pollution pushback · WBUR
- PeeringDB facility record: Markley Group One Summer Street Boston, 1 Summer Street, Boston MA 02110 · PeeringDB
- Markley Group Data Center · Markley Group
Adapted from Compute Atlas by Edward Kubiak, edition 1.34.1, under CC BY 4.0. Upstream ID markley-boston-summer-street-ma. Filtered to data-center records in the 50 U.S. states; selected fields normalized for search and display; DataCenterData directory IDs added. Some locations in this layer are reported by the provider as derived from OpenStreetMap (© OpenStreetMap contributors, ODbL, https://www.openstreetmap.org/copyright) and Epoch AI (CC BY 4.0).
Compute Atlas 1.34.1 with retained prior rows and publication holds. This is a DataCenterData composite, not an unmodified publisher edition. This row uses the captured source from 1.34.1, source as of 2026-10-14T20:40:52.293Z.
Operator’s own listing
What the operator publishes about this site on its own website, matched to this licensed row by DataCenterData. Facts are taken from the operator’s page, shown with a link to it, and not independently verified; no page text is republished and the licensed values above are unchanged. A match does not establish that the listing and this row cover exactly the same building, suite or boundary, or who owns the site.
- Name as listed
- One Summer
- Address as published
- One Summer Street, Boston, MA 02110
Lifecycle status is not published for this listing.
Cooling design reported by the operator: N+1 redundancy.
Update this profile with a public source. The request includes topics needing more information; this does not mean the facility lacks them. Corrections and additions are reviewed before publication.
Federal registry record
What the U.S. EPA Facility Registry Service records at this street address, selected by DataCenterData from EPA’s ECHO Exporter. U.S. government data; not independently verified by DataCenterData. It does not establish who owns or operates the site, that the site is a data center, whether it is operating, its size, or whether the registration covers one building or a whole campus.
EPA lists a facility of Markley Group at 1 SUMMER ST, BOSTON, MA 02110 under industry code 518210 (data processing, hosting); the registry does not say what the facility is.
- Name as registered
- MARKLEY BOSTON LLC
- Address as registered
- 1 SUMMER ST, BOSTON, MA 02110
- EPA registry ID
110070431909
One EPA registration; it may cover generators for a whole campus or a single building.
Registrations EPA lists for this ID
- RCRA hazardous-waste generator registration
That does not mean the row is wrong, and it does not mean no reviewed record exists for the same place. A link is added only when an identifier or source establishes the match.
Recorded information
What this page records, grouped by topic, with the source's units and qualifications. Company-reported values stay labeled as company-reported. Related listings are shown separately.
Licensed directory listing dcd-dir-000911
Licensed directory row.
Provider notes and the source narrative are printed on this page and are not repeated here.
Identity and relationships
- Provider facility type: data center
Provider facility type.
Location and precision
- 1 Summer Street, Boston, MA 02110 · Suffolk (Approximate location)
Roles
- Operator: Markley Group
Operator label as published by the provider; no parent company is inferred.
Lifecycle
- Source-stated status: source-reported operational
Provider status label; not a DataCenterData finding that the facility is operating.
- Status history: 1999 · source-reported operational
Status history supplied by the source.
Power capacity
- Reported capacity: Operational: 30 MW (source-reported; boundary not independently verified; MW measure not stated by provider)
Reproduced as the page prints it; not ranked or totaled; unknown is not zero.
Cooling, water, PUE and WUE
- Cooling: Closed-loop
Provider label.
Sources, dates, limitations and corrections
- Provider update date: 2026-10-06
Provider update date is not a DataCenterData verification date.
Not yet recorded here: Area, acreage and buildings · Connectivity · Services · Certifications and design ratings · Rack density · Availability · Specification links and contact · Permits, incentives, jobs and proceedings.
Licensed values: adapted from Compute Atlas by Edward Kubiak under CC BY 4.0. Source-reported and not independently verified.
Update this profile with a public source. The request includes topics needing more information; this does not mean the facility lacks them. Corrections and additions are reviewed before publication.