NM just got mine, you are talking about the market value your home is assessed at. So your home value increased 30%. If you think this is incorrect there are ways to have the city adjust this. Make sure your home details are correct with the city. IE when we bought they assessed out basement as fully finished, it was only 40% finished. Make sure you have comparables as proof. again as I am a duplex I could point to my neighbour (duplex) and say well they have a double garage, fully finished basement with a slightly bigger lot and they are being assessed x which is equal to or more than y(me) There is an issue here. They greatly adjusted my property value. The city was very fair in their ultimate reassessment.