Approved, not built yet
Data center and solar campus at 491st Avenue and Thomas Road, Tonopah
Also called: 491st Ave & Thomas Rd
Landowners got county approval to turn 638 acres of desert west of Tonopah into a data center campus with solar panels and batteries. Up to nine large buildings could be built in phases. No data center company has been named.
Where things stand: County supervisors rezoned the 638 acres to light industrial in early 2026. No user or building permit is public.
🕒 Latest update (Feb 2026): Maricopa County supervisors approved a plan change and rezoning to light industrial (IND-2) for a data center, solar and battery campus.
What we know
- 📍 Where638 acres at the northeast corner of 491st Avenue and Thomas Road, west of Tonopah. Map point is that corner., Unincorporated Maricopa County, Maricopa County
- 🏢 CompanyGrandilla (Arizona) Inc. and Foot Creek Corporation (landowners)
- 🌳 Size638 acres
- 🔌 Where the power comes fromSolar panels and batteries on site, plus a power switchyard to connect to the grid. Zoning also allows power plants.
- 💧 WaterAn on-site water campus is planned; source not stated.
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- Which company will build or use the data centers? 🙋 I'll find out
- Where will the water come from, and how much will be used? 🙋 I'll find out
- How much power will the campus use? 🙋 I'll find out
What happened so far
- Feb 2026Maricopa County supervisors approved a plan change and rezoning to light industrial (IND-2) for a data center, solar and battery campus.
🛰️ See it from above
An aerial photo of the area.
Photos: USGS The National Map.
Where this comes from
- Maricopa County Board Approves Rezoning for 638-Acre Data Center/Solar Site · AZBEX · Feb 18, 2026
- 2.25 million sq ft data center campus proposed outside Phoenix, Arizona · DatacenterDynamics · 2026
- Geocoded road corner: 491st Ave and Thomas Rd · Esri World Geocoder · Oct 7, 2026
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