1690 Old Military Rd, Charleston, SC 29412

Built in 2014 (Cert. of Occupancy dated 10/2014), has all upgrades. Granite in kitchen and master bath. Super-large shower (shower head at each end). All full baths en suite. All wood floors, upstairs and down. Large front porch (10' x 34') and even larger back deck (12' x 58') SC 29412. Set back on lot with circle drive in front (never back out onto street). Google address to see what it looks like! Separation from comps include hardieplank siding vs. vinyl siding, all wood flooring & porcelain tile (no w/w carpeting), upgrades like granite in kitchen, baths, and wet bar/laundry room, frameless glass enclosed, over-sized shower in master, and generally newer construction than almost all comps. Zillow est. is based solely in comparisons with comps based on square footage, which does not consider the aforementioned. Some comps are 3bd, 2 or 2.5ba. In view of these distinctions, how are these accurate comps?