Is now the time to refi?

[JDee Moore]

If my market is considered to be at the top of the market or at minimum a year or two away from the top. Should I refi now? 

Single Family/primary place of residence 

Property Strategy - I would like keep house as my primary place of residence with the intention of selling after 5-7 years from now.

currently owe - 220k on a 30 year fixed conventional loan

Estimated Appraisal based on comps sold in the last 90 days - $300K

Current rate - 5%

Note: The best schools in the city are a couple blocks away/walking distance. I am in the top neighborhood with the criteria of $200K-400k houses, in the city. 

Any thoughts, ideas, suggestions would be appreciated.

Thanks BP.