Zoning Updates: ADUs, Landscaping, and AI Data Center Ban
Montebello
Summary
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.
At a glance
- Total mentions
- 4
- Last 30 days
- 2
Rising — discussed at 3 meetings since Sep 15, 2026, up from 0 in the two months before.
Impact analysis
Minimal fiscal impact, primarily ensuring regulatory compliance and streamlining local housing approvals.
Anyone who builds, renovates, or develops in Montebello could see a clearer, faster permitting process.
Neighbors concerned about parking congestion may see added street-parking pressure.
Mentions & discussions (4)
City Council - Oct 28, 2026
The council finalized four zoning ordinances covering ADU/JADU standards, water-efficient landscaping, a citywide ban on AI data centers, and updated zoning definitions.
City Council - Oct 14, 2026
New rules align the city's ADU and junior ADU standards with state law to make it easier to add backyard units. Council Member Peralta raised concerns about street parking, but staff said state law bars the city from requiring extra parking.
Planning Commission - Sep 15, 2026
Montebello is updating its municipal code to match current state laws regarding ADUs, junior ADUs, and water-efficient landscaping regulations.
Planning Commission - Jan 20, 2026
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.
Related development
Title 17 Zoning Code Text Amendments (Ordinance Nos. 2492, 2493, 2494, 2497)
These rules govern what can be built and where — from backyard units to whether AI data centers can operate anywhere in the city.
Title 17 Zoning Code Text Amendments (ADUs, MWELO, AI Data Center Prohibition, Definitions)
Modernizes local zoning code to match state housing and water laws while permanently banning power-hungry AI data centers.
We'll email you when it's on an upcoming agenda and when it's voted on, at most once a day.
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