Amazon’s Gilroy Data Center Is Under Construction. Its Commitments Are Now the Test
Amazon is building a two-building data-center campus in Gilroy after an administrative approval and an environmental review that retained significant impacts. The public question has shifted from the project’s basic land-use permission to whether its water, power and mitigation commitments can be independently tracked as construction advances.
- Amazon says construction on the first of two Gilroy data-center buildings began in December 2025 and targets operations in December 2026.
- The city approved roughly 438,500 square feet of data-center and security buildings on a 56-acre former agricultural parcel; Phase I’s documented utility connection is 49 MW.
- An environmental-impact report and mitigation plan were adopted, but the state record says the project will have a significant environmental impact and that the city adopted a statement of overriding considerations.
- The practical issue now is disclosure: the water connection, backup-power configuration and mitigation compliance are more consequential than broad promises about jobs or electricity bills.
Amazon’s Gilroy data-center campus has passed its decisive land-use hurdle and moved into construction. The more difficult question is whether the commitments attached to it will be observable before the first building starts operating.
Amazon Data Services Inc., the Amazon affiliate listed as the property owner in the city approval, is developing the site at the southeast end of Arroyo Circle. Amazon Web Services, Amazon’s cloud-computing business, has operated Northern California data centers since 2009, according to its project site. That identifies Amazon as an established regional operator; it does not, by itself, establish the local outcomes the company forecasts.
The city’s July 2025 decision is unusually consequential because it authorized a large, energy-intensive facility through an Architectural and Site Review in an industrial district where data-processing establishments are principally permitted. The initial Phase I building is planned at about 218,000 square feet. A second comparably sized building would bring the campus, including its security building, to approximately 438,500 square feet.

City of Gilroy Draft EIR site plan of the proposed two-phase data-center layout and substation. Source: California CEQAnet notice of determination.
The permit established the project, not its final operating record
The approval, signed by Gilroy Community Development Director Sharon Goei, identifies Amazon Data Services as the owner and subjects the project to findings and conditions. The site is a 56.33-acre parcel previously used for agriculture, within the city’s M-2 General Industrial district. That zoning status is why the director, rather than the City Council, could approve the site-review permit.
