The notice says how to calculate estimated increase. You need to subtract the increase in the Grandlist (18%) from the increase in valuation to get the net increase.

Basically the sum of all property in Stamford went up 18%, so if your property is up 18% you can expect no changes. Above 18% your taxes are going up by the difference, below 18% they’re going down.

So that’s a 50% increase which is pretty steep. Ours (also Stamford) is going up 30%. In our case that tracks pretty well with what our property value has done in that time. Down from its peaks, but about 30% higher that when the city did its last assessment.

The Grand list is going up 18%, so your effective taxes will be rising over 30% (~50-18).

On your assessment you can challenge the value, the include instructions to do so. If you feel the 50% increase is not in line with where your property value is in relation to the market, that would be your best bet.

You were quoted, in 2021 (with current material pricing), a full gut reno including new roof siding and other external work for $100k in Stamford?

Edit: And as far as price, I’m pretty sure that the median home price in Stamford is about $600k, so all the “crap” over 500k is more than half the homes in Stamford lol

A healthy profit to be sure, but no where near twice the investment. Full gut and remodel including exterior work was almost certainly well into 6 figures (over $250k if I had to guess) with Fairfield county contractor pricing in effect.