A straightforward look at the last value change.
If you are trying to judge whether value is moving in a way that matters, start with the last month. Ballston Spa, NY showed a median estimated home value of $443,260 last month and a 2.8% monthly change, so value is still shifting enough to watch closely.
That $443,260 estimate last month gives me a useful marker, and the 2.8% monthly change tells me it is not a static picture. I would use that as a reminder to keep your decision tied to recent numbers, not older assumptions.
For buyers, I would compare the homes you are considering to that recent value marker before you stretch. For sellers, I would pay attention to how the estimated value and the closed sales line up before I settle on a number.
Use the latest value first. Compare it with recent closings. Keep your expectations anchored to the same time frame.
