A Prop 19 Westwood tax strategy guide by Payman Shilian | The Shilian Group
Why This Matters for Westwood Homeowners
If you purchased your Westwood home years ago, your current property tax bill is likely significantly lower than today’s market-based taxes. That difference, created by California’s Proposition 13, is often one of the most valuable financial advantages you have as a homeowner. For sellers 55 and older, the Prop 19 Westwood tax base transfer is the single most important financial planning tool to understand before listing.
If you are 55 or older, Proposition 19 allows you to transfer that tax advantage to a new primary residence anywhere in California. When used correctly, this can preserve tens of thousands of dollars per year in reduced property taxes. Many long-term Westwood homeowners do not fully understand how this works, and that can lead to costly missed opportunities.
What Proposition 13 Does
Proposition 13, passed in 1978, sets your property’s assessed value at the purchase price and limits annual increases to a maximum of 2%. Your annual property tax is roughly 1% of the assessed value, plus local voter-approved assessments.
The Westwood example is stark. A homeowner who purchased a home in the 1990s for $800,000 has an assessed value today of roughly $1.5 million, putting their annual tax bill at approximately $15,000 to $18,000. A new buyer of that same home today at $5 million faces a tax bill starting at $50,000 or more per year. Same property, completely different tax burden. That difference is your Prop 13 tax base, and it becomes extremely valuable over time.
The Prop 19 Westwood Transfer Explained
Proposition 19, which took effect April 1, 2021, created portability for that Prop 13 base. If you are 55 or older, severely disabled, or a victim of wildfire or natural disaster, Prop 19 lets you transfer your Prop 13 assessed value to a new primary residence anywhere in California. You can use this benefit up to three times in your lifetime, and it applies to any primary residence — house, condo, or otherwise. Previously, these transfers were limited to the same county and generally allowed only once.
The Three Rules That Matter Most
Three rules shape how the transfer works, and getting any one of them wrong can cost you the benefit entirely.
The two-year window. You must buy or build your replacement home within two years of selling your original home. Either direction qualifies — buy first and sell second, or sell first and buy second — as long as both transactions happen within 24 months of each other.
The three-year filing deadline. You have three years from the replacement purchase to file your Prop 19 claim with the county assessor. This is not automatic. Your CPA does not file this for you. Missing the deadline can result in losing the benefit permanently. Get this on your calendar the week you close on the replacement property.
The value comparison rule. This one determines how much of your tax base transfers. When your replacement home costs equal to or less than your original home’s sale price, your base transfers fully with no adjustment. If the replacement costs slightly more, the thresholds work as follows: 100% of the original sale price if you buy before the sale, 105% if you buy within one year after the sale, and 110% if you buy within two years. If the replacement exceeds the applicable threshold, you can still transfer — but the amount above the threshold gets added to your transferred base.
A Real Prop 19 Westwood Example
Let’s walk through a realistic Prop 19 Westwood scenario. A couple bought a Little Holmby four-bedroom in 2002 for $1.2 million. Their current assessed value, after years of maximum increases, is approximately $1.93 million. Their current property tax is around $19,000 per year.
They sell in 2026 for $4.8 million and purchase a Wilshire Corridor condo for $3.2 million the same year. Because $3.2 million is less than $4.8 million, the full $1.93 million tax base transfers directly to the new condo. Their new property tax is approximately $19,000 to $20,000 per year.
Without Prop 19, the condo’s property tax would have been approximately $32,000 per year. That is an annual savings of $12,000 to $13,000 every year they own it, and over ten years, that represents $120,000 or more in preserved wealth.
Common Mistakes to Avoid
Thinking you must stay in LA County. You don’t. Prop 19 is statewide. You can sell your Westwood home and buy in Sonoma, Malibu, San Diego, or Napa and still transfer your base. The old county-restriction rule is gone.
Missing the timing window. If you sell your Westwood home and rent for 30 months before deciding where to buy next, you have forfeited the transfer. The two-year clock is firm.
Not filing the claim. This is one of the most common and costly Prop 19 Westwood mistakes I see. Homeowners complete the transaction — sold, bought, moved — but never file the formal Prop 19 application with the county assessor. The county will not retroactively apply the transfer without the paperwork.
Prop 19 Westwood Seller Strategy
If you’ve owned your Westwood home for 15 or more years, your tax base is likely a six-figure asset over time. This directly impacts whether you should sell, where you should move, and what price range makes sense for your next home.
Before listing, every Prop 19 Westwood seller should run their current assessed value, estimate new tax scenarios, and evaluate replacement property options in light of the transfer thresholds. At the Shilian Group, this analysis is part of the initial strategy conversation for every client over 55. We are not tax advisors — your CPA or estate attorney handles the formal claim — but we make sure the conversation happens before we set a listing price.
Frequently Asked Questions
Am I eligible if I’m 55 or older? Yes, if you owned and lived in the original home as your primary residence and the new home will also be your primary residence. If you are married, at least one spouse needs to meet the age requirement at the time of the sale.
Can I transfer outside Los Angeles County? Yes. Prop 19 allows transfers anywhere in California. This is different from the pre-2021 rules, which limited portability to the same county or a handful of participating counties.
How many times can I use it? Up to three times, if you continue to qualify. The count includes any prior transfers you made under the old Prop 60 or Prop 90 rules.
Value Thresholds and Property Types
What if I buy a more expensive home? You can still transfer your base, but the difference above the applicable threshold is added to your transferred assessed value. If you sell for $4 million and buy for $4.5 million within a year, your new assessed value is your old base plus the $300,000 that exceeds the 105% threshold.
Can I switch property types? Yes. You can go from house to condo, condo to house, or any combination. The rules apply to principal-residence-to-principal-residence transfers regardless of property type.
Does this apply to inherited property? Only in limited situations. The rules under Prop 19 are stricter than the old Prop 58 parent-child exclusion, and inherited properties often result in reassessment at market value. This should be reviewed with an estate attorney.
This article is for informational purposes only and does not constitute legal, tax, or financial advice. Property tax rules under Proposition 13 and Proposition 19 can vary based on individual circumstances. Always consult a licensed California CPA or real estate attorney before making decisions. For official information, visit the California State Board of Equalization.
