California SB9 Lot Splits
Statewide lot-split law produced negligible supply.
D · 11/24
1 · The idealist case (in its proponents' own framing)
Allow lot splits and duplexes to add homes.
2 · The realist counter-case
Critics said fees and owner-occupancy rules would smother it.
3 · Predicted vs. measured — with caveats
Terner Center found negligible new supply; $30k-100k fees and owner-occupancy bind.
4 · Liberty check
Nominally expands owner rights but with binding strings.
5 · The real tradeoff
A how-not-to next to ADU success.
Allies & Playbook
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No individual sponsor record is catalogued for this policy yet. Start with the primary sources below and the Allies directory.