Utah is a non-disclosure state. That means that sales are recorded at the county/city recorders office as "$100 and other good consideration". So, online services like Truila or Zillow are not accurate on the actual sales prices (they don't have that level of access to the PCMLS)
For active properties, http://www.parkcitysold.com not only lets you search for individual properties ... but, also provides a pricing analysis against properties surrounding it. That can help do a high level evaluation of worth.
I'm also happy to provide a historical sales report to you for free and without obligation. Email (or call me) and I'll send you the latest report.
When you call, also ask about help with your closing costs.
Equity Real Estate Luxury Group
Please contact me directly so that we can discuss the exact information you are seeking.
Keller Williams Park City