HUNTERSVILLE, NC-This town of 2,000 residents, just north of Charlotte, bought a 32-acre mill site two years ago for $600,000 or $18,750 per acre (43 cents per sf). Now one developer is offering $1.17 million or $36,563 per acre (84 cents per sf). Another appraisal of $1.4 million comes in at $43,750 per acre or $1 per sf.