Summary
The county approved a lot split and rezone at 1921 Green Valley Road in Alamo to allow two homes. Neighbors raised heavy concerns about hillside stability, retaining walls, and runoff into nearby Green Valley Creek.
At a glance
- Total mentions
- 1
- Last 30 days
- 0
Last discussed Jan 20, 2026.
Impact analysis
✅Who benefits
The property owner and future residents who gain an additional single-family housing lot.
⚠️Who could be affected
Nearby homeowners concerned about increased landslide risks and stormwater impacts on local creeks.
Mentions & discussions (1)
Related development
We'll email you when it's on an upcoming agenda and when it's voted on, at most once a day.
The weekly brief for Contra Costa County
What the council decided, in plain English — one email a week.
Free. Unsubscribe with one click any time. We never sell your email.