3 bd2 ba2,340 sqft 737 Sir Echo Dr, Kingsport, TN 37663 Sold: $340,000Sold on 09/08/22Zestimate®: $364,100 Est. refi payment: $1,969/mo Refinance your loanHome value Owner tools Home details Neighborhood details Get pre-qualified for a loan At Zillow Home Loans, we can pre-qua...