CA SB1203

Defines "related facilities" for low-income rental housing exemptions to include manager units, common areas, walkways, balconies, clubhouses, laundry facilities, and parking within the development.

Changes the partial welfare exemption calculation from a percentage based on property value to a percentage based on the number of units serving lower-income households compared to total residential units.

Prohibits local governments from entering into payment in lieu of taxes (PILOT) agreements with low-income housing project owners on or after January 1, 2015, and voids any such agreements.

Requires cancellation of all outstanding ad valorem taxes, interest, and penalties levied under PILOT agreements between January 1, 2012 and January 1, 2015, and refunds any such amounts already paid.

Prohibits escape or supplemental assessments based on PILOT agreement payments being used inconsistently with the requirement that tax savings be used to maintain affordability or reduce rents.