Iron Mountain LON-3 London Data Center

Name: Iron Mountain LON-3 London Data Center
Address: GB

Under construction

United Kingdom · 1 project · Last reported 2026-06-30

Summary

AMS-1 Phase 4 and LON-3 Future Phases are explicit construction rows with positive Q2 investment. Neither selected row has the footnote for planned construction that has not commenced. evidence

Iron Mountain Incorporated · published 2026-08-05

Location

The interactive map needs JavaScript. Display anchor: 51.52025, -0.62006 (Point locator, WGS 84).

View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser

Campus reference; individual project footprints are not mapped.

Projects (1)

Iron Mountain LON-3 25 MW Build

Under construction last observed as of 2026-06-30 · Authoritative status update

Source and location review

Status source

Q2 2026 Supplemental Financial Information - construction rows evidence row
Iron Mountain Incorporated · published 2026-08-05 · Company disclosure

Locator

Campus locator · Official source · official_environmental_report_campus_reference_point evidence

Source checks

Not reviewed against imagery not_reviewed_for_core_preview
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verification

Status age at review: 119 days before the data update on 2026-10-27

Location details

Coordinates: 51.52025, -0.62006
Geometry licence: all-rights-reserved
Use scope: Campus locator
Scope class: official_environmental_report_campus_reference_point
Authority: Official source
Source entity: Campus
Method: EPSG_27700_to_EPSG_4326_always_xy_with_documented_OSGB36_transform
Derivation: official_environmental_report_site_grid_reference
Precision scope: The report's National Grid Reference locates the LON3 site at 111 Buckingham Avenue. It is not a parcel, building centre, full Slough campus boundary or observed construction extent. LON1, LON2 and LON3 campus relationships do not create separate site additions.
Horizontal uncertainty: Not reported
No source-specific numeric horizontal accuracy is published; transform operation accuracy is not site-locator uncertainty.
Geometry evidence: dc67d965

A locator places the site on the map. It is not a building footprint, a construction extent or a surveyed boundary unless the use scope is an official boundary, and even then it is a parcel or permit boundary.

Evidence

Sources are linked, not redistributed; each keeps its own terms. An archived copy is a lookup for the Wayback Machine capture nearest the retrieval date and may be unavailable or differ from what was reviewed. Each hash states what it covers; imported factual records are not publisher-page captures.

Evidence for Iron Mountain LON-3 London Data Center
Title	Publisher	Roles	Published	Retrieved	Licence	Attribution	Content hash (SHA-256)
LON3 environmental permit advertisement - identity Archived copy	Environment Agency Government record	Geometry identity context, Site distinctness context	2025-01-08	2026-09-08	Open Government Licence v3.0, except where otherwise stated	Environment Agency	`9f1a8839809a2c4745c2c8606e01adbbe8abf0d8c60fe9fef8736f3fb03359bb` Retained source material; see source provenance
LON3 site report - National Grid reference Archived copy	Ramboll for I3 Solutions, publicly hosted by Environment Agency Company disclosure	Geometry identity context, Site distinctness context, Geometry	not stated	2026-09-08	all-rights-reserved	Ramboll for I3 Solutions, publicly hosted by Environment Agency	`e2aeebafded7c5be5e7300938f15a30255c895e2694acab2b1ffd3daab6ef3f7` Retained source material; see source provenance
Q2 2026 Supplemental Financial Information - construction rows Archived copy	Iron Mountain Incorporated Company disclosure	Physical status	2026-08-05	2026-09-08	all-rights-reserved	Iron Mountain Incorporated	`40c74e89fad0c524afd19bcaaa0254b329c4f871c8f7636383fd20948afff946` Retained source material; see source provenance

Required licence statements:

Contains public sector information licensed under the Open Government Licence v3.0. Licence terms

Cite this site

Kyars, K. (2026). Iron Mountain LON-3 London Data Center [site vcc-site-b2ce7bc4242acd906a7b]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-b2ce7bc4242acd906a7b/

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