Closed sales offer the clearest guide when you keep the comparison set tight and relevant.
If you are unsure which market signal matters most in Mercer Island, WA, I would put recent closings at the center of the decision. That is usually the cleanest guide. The key is keeping the comparison set relevant instead of letting every sale influence your plan.
Over the previous 30 days, the typical closed price in Mercer Island, WA was $2,382,500, with a typical price of $798 per square foot and a typical closed size of 2,580 square feet. Those recent closings give me a practical foundation for advice because they reflect homes that actually changed hands.
Still, a closing only helps when it truly compares. I would filter recent Mercer Island, WA closings by property type and approximate size before trusting the number. That matters even more in a market where the broader recent closing range remains wide.
Build a short list of comparable recent closings before you price or offer. Use the recent price per square foot as a check rather than the whole case. Let the right closings guide you. That is how I would keep the decision grounded.
