Average price per square foot for Beaufort SC was $143, an increase of 20.2% compared to the same period last year.ummary for Beaufort. The median sales price for homes in Beaufort SC for Jul 15 to Sep 15 was $209,500. This represents an increase of 12.6%, or $23,500, compared to the prior quarter and an increase of 13.2% compared to the prior year. Sales prices have appreciated 9.1% over the last 5 years in Beaufort.