Title 17 Zoning Code Text Amendments (ADUs, MWELO, AI Data Center Prohibition, Definitions)
Montebello
Description
City-initiated code amendments to update ADU/JADU standards, adopt the state water efficient landscape ordinance, prohibit AI data centers, and revise definitions.
Impact summary
Modernizes local zoning code to match state housing and water laws while permanently banning power-hungry AI data centers.
Applicant
- Name
- City of Montebello
- Address
- Citywide
At a glance
- Hearings
- 1
- Public comments
- 0
- Total mentions
- 1
Last vote · Planning Commission
A recommendation, not a final decision. The council decides next.
Discussed at 1 meeting in the last 60 days; most recently Sep 15, 2026.
Meeting timeline (1)
Related issues (2)
Citywide prohibition on AI data centers
A resident warned the council about a proposed 250,000-square-foot AI data center in Monterey Park near the Montebello border, citing water, power and emissions concerns and urging the city's SCAG representative to raise it.
Zoning Updates: ADUs, Landscaping, and AI Data Center Ban
Staff announced a special Planning Commission meeting on February 10 to present the city's comprehensive rezoning ordinance — the first real zoning overhaul since the zoning map was drawn in 2014 and the code tied to a 1973-era General Plan. It's meant to bring zoning in line with the current General Plan and streamline development review.
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