Property Tax Near Jack London Square, Oakland, CA

Proposition 13, in Plain Terms

California's Proposition 13, passed by voters in 1978, sets the property tax framework for every parcel in the state, including every unit in Jack London Square. A property's assessed value is generally locked in at its purchase price at the time of sale, and that assessed value can then rise by no more than 2% per year regardless of how fast market value moves -- until the next change of ownership resets it to the new purchase price. In a genuinely soft, currently-declining submarket like this one, that mechanic cuts an unusual direction: a longtime owner who bought during an earlier price peak may be carrying an assessed value well above what the unit would sell for today, while a 2025-2026 buyer picking up a unit at the current lower price point locks in a proportionally lower basis going forward.

The base rate is capped at 1% of assessed value at the state constitutional level, but actual bills run above a flat 1% almost everywhere in California because of voter-approved local add-ons -- city and county bond measures, school district bonds and parcel taxes, and in some developments, Mello-Roos Community Facilities District assessments. Which specific add-ons apply to a given Jack London Square parcel depends on its exact Alameda County tax rate area.

The Alameda County Assessor and a Real, Sourced Rate

Alameda County is the correct assessor jurisdiction for every Jack London Square property -- the Alameda County Assessor's office (led, per recent public records, by Phong La, elected in 2018) handles assessment, Prop 13 and Prop 19 reassessment triggers, annual inflation adjustments, and exemption applications for the entire county, Oakland's waterfront included. Property-tax aggregator data cites an Oakland-area effective rate around 1.34% of assessed value -- broadly consistent with the Prop 13 base-plus-add-ons structure described above -- though this page did not find that figure independently confirmed against a primary Alameda County document, and other sources describe broader county-wide averages differently depending on methodology and which tax rate areas are included. This page states the figure as a directional planning number, not a guaranteed rate for any specific parcel.

Put in real dollars at this district's actual price levels: a $450,000 Jack London Square condo purchase at a 1.34% effective rate would carry a first-year property tax bill near $6,030. A $700,000 purchase at the same rate works out to roughly $9,380 per year. These are illustrative rate-times-price calculations for planning purposes only, not a substitute for the Alameda County Assessor's own parcel-specific figure.

Why the Seller's Current Tax Bill Is the Wrong Number to Budget From

Because Prop 13 resets assessed value at every change of ownership, a seller's current property tax bill reflects whatever they paid -- possibly at a much higher price point during an earlier peak in this district's market, possibly capped at 2% annual growth for years since. Given how much Jack London Square condo prices have reportedly moved in the past year alone (multiple sources cite double-digit year-over-year declines), a listing showing a seller's current tax bill from an earlier purchase tells a 2026 buyer very little about their own future bill. Budget from the actual purchase price times a realistic current effective rate (roughly 1.3%, per the sourced figure above), not from whatever figure appears in the seller's disclosures.

Prop 19 Portability and Exemptions

California's standard statewide rules apply here the same as anywhere else in the state. A modest homeowner's exemption reduces assessed value for an owner-occupied primary residence -- a relatively small dollar benefit at this district's price levels, but a real one. Proposition 19 (approved 2020, effective in phases from 2021) lets eligible homeowners age 55+, severely disabled homeowners, and wildfire or disaster victims transfer their existing, lower assessed value to a replacement home elsewhere in California, generally up to three times for age or disability-based moves -- a genuinely useful mechanic for a longtime California homeowner considering downsizing into a Jack London Square condo without a full reassessment at current purchase price. Prop 19 also narrowed the prior parent-child transfer exclusion, generally now requiring a child inheriting a home to use it as their own primary residence to keep the parent's lower assessed value.

This page does not restate every Prop 19 eligibility rule in full; the Alameda County Assessor's office maintains current forms and guidance and should be the first stop for anyone planning to use Prop 19 portability in connection with a Jack London Square purchase.

HOA Assessments Are Separate From Property Tax

A genuinely important distinction for a first-time condo buyer in this district: HOA dues and any special assessments levied by a building's homeowners association are entirely separate from the property tax bill described above -- they don't run through the county assessor, aren't governed by Prop 13, and can change on the HOA's own schedule rather than a capped annual rate. Budgeting for a Jack London Square purchase means accounting for both figures independently. See the Real Cost page for more on HOA costs specific to this condo-heavy waterfront district.