[jjav]

> My neighbors bought their house in 1975, pay $3k in property taxes. I pay 9k in property taxes. If I bought today I'd pay 17k.

What neighborhood?

The largest gap I've been able to find is ~2.5x, the one you mention is more than 5x.

[snotrockets]

There are maps.

And in South Berkeley, I pay almost $30k/year. Neighbor pays $3.5k.

https://www.officialdata.org/ca-property-tax/

[jjav]

> https://www.officialdata.org/ca-property-tax/

Thanks for the link, I had seen that site before but forgotten about it.

Have you confirmed that 3.5k number with the neighbor, or is it from the website?

I see a few large errors on that site for my neighborhood, so can't really trust it.

There is one house similar to mine shown as paying less than one fifth property tax. But if I look up the tax history in zillow, it's not true, their property tax history is quite similar to mine.

Then there are two interesting cases, where their property tax is shown as minuscule, less than $1k. And interestingly, zillow agrees.

But here's the interesting part: looking at the history in zillow, it shows that both these houses were paying around $9K in property tax and then suddenly one year it dropped to $900.

Please correct me if I'm wrong but I don't think there is any mechanism in California property tax code that makes it possible for the property tax to drop like that.

I know one can request a revision if the market drops significantly (like in 2008) but this is not that, it dropped to 1/10th of previous value! And these are all very similar homes from a mass produced builder, they're all within a handful percentage of each other in estimated market price. None of the other houses in the neighborhood dropped in assessed value like that.

So I'm guessing it is just a typo or otherwise bad data from the county, feeding into both zillow and this website.

I should add: The $900 property tax shown is quite a bit less than the property tax on year one when these houses were built in the 90s. Which seems quite impossible, so I conclude the data is wrong.

[snotrockets]

I think some of the data is just old: my house is listed with the tax assessment for the previous owner.

But all the tax bills are published (though in a harder to navigate format) on the country website. I went and checked all my neighbors property taxes there when signs against a modest tax increase for road fixing started going up in the neighborhood.

As for property tax drop: there are such mechanisms, like those in the Mills act. They’re not easy to use though

[jjav]

> I think some of the data is just old: my house is listed with the tax assessment for the previous owner.

You can compare in zillow which lists it year by year (though some data is missing).

> As for property tax drop: there are such mechanisms, like those in the Mills act.

I looked up Mills act, it is for designated historical buildings.

These are cookie-cutter houses, all built by the same builder during the same year in the 90s. No designated historical buildings here, so that's not it.

First year after being built in the 90s that house paid near $3K in property taxes. I'm pretty sure there is no mechanism for it to actually pay $900 in property taxes in 2024. It's just bad data in the system.

[jjav]

> https://www.officialdata.org/ca-property-tax/

To add to my previous comment, for my neighborhood, if one thought all the numbers there are true, there is 15x multiplier from the cheapest property tax to the most expensive. Which sounds wild.

But if you take out the obviously wrong values, the multiplier from lowest to highest tax is actually only ~2.5x. And that's lowest to highest. The mean difference is far less, under $1K.

One might say there shouldn't be any multiplier, perhaps. But the point is that the impact of Prop13 is often far overstated.

[kuchenbecker]

Oh I lied, they pay $1300 per year on 117k assessed value for a home purchased in 1975 for 50k.

I bought my house, substantially the same, for 800k, currently worth about 1.5M.

I'm in Pleasanton.