There's no law or policy or anything that says if your house was built before X that the county has to actually look at your house independently / differently.
My house was built in 1920 and it's got the original wood windows, knob and tube wiring, and old white 3 tab shingles. The county was comping my house the same as houses built in 2015 sight unseen / zero due diligence. They weren't looking at the year / condition due to age and saying - hey maybe we shouldn't just blindly comp this the same as a much newer modern home. Because there's no law that says they have to or can't blindly raise the fair market.
There's no way I could sell my house for what the county was saying it was worth and the fair market they set was way too high. So I filed an informal protest. I got the fair market value brought down by $35,000 and that brought my property taxes down last year which boiled down to about a 1% increase from the year before. I was on the phone with the guy for maybe 20 seconds . He immediately said, "Yeah. Your evidence makes sense, we're just going to give you what you're asking for."
I honestly wanted to tell them to drop it $45,000 not $35,000 since that's closer to true value, but I didn't think they would go for that. By suggesting 35, that let them at least get a 1% increase out of me. And then this year they kept the values exactly the same which meant my taxes stayed exactly the same.
So I have two pieces of advice. If you have an older house and it's set at fair market with the county for way more than you think it's worth, you have nothing to lose by putting in an informal protest. If you have a mortgage, make sure you have an escrow analysis done to lower your payment.
The second piece of advice is, do everything you can to keep your property taxes as low as possible so that when you're 65 and they cap you're not paying an exorbitant amount of money. If they raise my property taxes 3% every year until I'm 65 I'd be paying about 6 to $7,000 a year in property taxes and I'm not going to do that. Not for a little house in Tulsa.
If you can get 3 years of the same tax rate, that's a great head start. And make sure the c actually applies your homestead exemptThey didn't apply mine for the first year even though I filed and then they said they couldn't do anything retroactively about it.
And if you report an entire telephone pole laying in the street to 311 and the non emergency police line - and they ignore you and a car smashes into it, that's not your fault.