Vacant urban lots, ministerial

Streamlines small-lot home development on vacant urban land — pairs with SB-684 for fast for-sale subdivisions.

In plain English

What it actually does.

SB-1123 closed the gap left by earlier streamlining laws by extending ministerial small-home subdivision rights to vacant urban lots. Combined with SB-684, the pathway from raw lot to recorded subdivision is shorter than it has been in decades.

How it applies

On the ground, by city.

01 / City

Los Angeles

Significant inventory of qualifying parcels.

02 / City

Long Beach

Active opportunity area.

Keep reading

Other laws in the playbook.

SB-9

Single-family lot split + duplex

Splits an R-1 lot in two and allows up to two units on each new lot. Ministerial approval, no public hearing.

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SB-684

Small-home subdivisions on multi-family lots

Up to ten detached small homes on a multi-family-zoned lot, ministerial approval, no discretionary review.

Read →

SB-1211

Detached ADUs on multi-family parcels

Allows up to eight detached ADUs on existing multi-family properties — a dramatic expansion over prior limits.

Read →

Run the numbers

See what SB-1123 unlocks on your lot.

Drop in your address, lot size, and zoning. The calculator returns a unit count, the pathway, and the warnings worth knowing.

Open the lot calculator