Homes for sale DOWNTOWN CHARLESTON SC over $1 Million | REAL ESTATE FOR SALE FROM Above $1,000,000 in historic Charleston SC. One of the more popular areas: Tradd St Charleston SC Homes. Charleston SC real estate downtown Charleston is the most expensive property in the state of SC, and as such most homes will be over $1Million for the nicer properties most people are looking for; both houses and condos. See all properties for sale in historic downtown Charleston starting at $1,000,000.