In Oak Park, like everywhere in California, the base property tax is governed by Proposition 13: roughly 1% of the assessed value, plus voter-approved local bonds and any special assessments, for a typical effective rate around 1.1%-1.25% of value. Newer master-planned tracts may add Mello-Roos (CFD) charges on top. Your assessed value is generally set at your purchase price and can rise at most ~2% per year under Prop 13. Confirm the exact rate and any CFD for a specific parcel with the Ventura County Assessor.
How California property tax works
Proposition 13 caps the base ad valorem rate at 1% of assessed value and limits annual increases in assessed value to about 2%, with reassessment to market value generally triggered on a change of ownership. On top of the 1% base, Oak Park parcels carry voter-approved bond measures and direct assessments, which is why the effective rate usually lands a little above 1%.
Mello-Roos in Oak Park
Most Oak Park homes do not carry Mello-Roos; verify any newer tract for a CFD.
How to verify
The Ventura County Assessor publishes parcel-level tax information. For a home you're considering, Brian pulls the actual tax bill and any CFD/special assessment so there are no surprises after closing.
Frequently Asked Questions
What is the property tax rate in Oak Park?
In Oak Park, like everywhere in California, the base property tax is governed by Proposition 13: roughly 1% of the assessed value, plus voter-approved local bonds and any special assessments, for a typical effective rate around 1.1%-1.25% of value. Newer master-planned tracts may add Mello-Roos (CFD) charges on top. Your assessed value is generally set at your purchase price and can rise at most ~2% per year under Prop 13. Confirm the exact rate and any CFD for a specific parcel with the Ventura County Assessor.
Does my Oak Park assessed value reset when I buy?
Generally yes - under Proposition 13, a change of ownership typically reassesses the property to its purchase price, then annual increases are capped at about 2%. Some transfers qualify for exclusions; ask a tax professional.
