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Bill

SB 390

Community facilities district: inclusion or annexation of territory: County of San Mateo.

2025-2026 Regular Session Introduced by Josh Becker and 3 co-sponsors

SB 390 streamlines San Mateo County's ability to expand Community Facilities Districts into new territory, accelerating infrastructure funding but increasing property tax obligations for affected landowners.

Chaptered by Secretary of State. Chapter 652, Statutes of 2025.
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Bill Summary · SB 390

Legislative bill overview

SB 390 modifies California law to allow San Mateo County to more easily include or annex territory into existing Community Facilities Districts (CFDs). CFDs are special assessment districts that fund infrastructure and public facilities through property taxes on landowners within the district. The bill streamlines the procedural requirements for expanding these districts without requiring full formation processes.

Why is this important

CFDs finance schools, parks, roads, and other infrastructure in developing areas. Easier annexation allows counties to expand funding mechanisms to new developments and underserved areas more quickly, potentially accelerating infrastructure improvements. However, it also increases property tax obligations for affected landowners, making the process' accessibility consequential for residents and developers.

Potential points of contention

  • Taxpayer consent requirements: Streamlined annexation processes may reduce opportunities for property owners to object or vote on new assessments affecting their land
  • Developer favorability vs. resident burden: The bill may facilitate development by reducing friction costs, but existing and new residents bear the tax burden for infrastructure
  • San Mateo County-specific carve-out: Creating county-specific procedural exceptions sets a precedent that other counties may seek, potentially fragmenting statewide CFD standards

Compiled from official sources — confirm details with the bill’s official record.

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