Being built
Prime Data Centers SMF02 (McClellan Park, second building)
Also called: SMF02, Prime Sacramento campus
Prime Data Centers is building a second data center at its campus in McClellan Business Park, north of Sacramento. The new building has about 18 megawatts of computer power and is next to Prime's first building, which opened in 2020. The county approved it in February 2026 and work started in May 2026.
Where things stand: County approved the permits in Feb 2026; construction started in May 2026.
🕒 Latest update (May 7, 2026): Prime announced it broke ground on SMF02, an 18 MW, 150,000 sq ft building.
What we know
- 📍 Where2407 AK Street (private road) in McClellan Business Park, North Highlands area, unincorporated Sacramento County. County papers say 2407; the company says 2408 AK Street., Sacramento County
- 🏢 CompanyPrime Data Centers
- 🌳 Size7.74 acres
- ⚡ Power it needs18 megawatts (about as much as 14,400 homes)
- 🔌 Where the power comes fromSacramento Municipal Utility District (SMUD); the site already has its own electric substation
- ❄️ Coolingclosed-loop cooling (company says this cuts water use)
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- How many diesel backup generators will the new generator building hold? 🙋 I'll find out
- How much water will the building use per day? 🙋 I'll find out
- When will SMF02 open? 🙋 I'll find out
What happened so far
- Feb 5, 2026Sacramento County approved a special permit and design review for a new two-story data center, an office building and a generator building (PLNP2024-00238).
- Feb 25, 2026The county filed its environmental decision with the state. It said the project has significant impacts and adopted a statement of overriding considerations.
- May 7, 2026Prime announced it broke ground on SMF02, an 18 MW, 150,000 sq ft building.
🛰️ See it from above
An aerial photo of the area.
Photos: USGS The National Map.
Where this comes from
- Prime Data Centers – Notice of Determination (SCH 1996122010) · CEQAnet / Sacramento County · Feb 25, 2026
- Prime begins construction on new data center in Sacramento, California · Baxtel · May 8, 2026
- Prime Data Centers breaks ground on second Sacramento data center (Business Wire) · Business Wire via Joplin Globe · May 7, 2026
- What is (and isn't) happening with data centers in the Sacramento region · Abridged (PBS KVIE) · July 14, 2026
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