Design your ideal community! 5270 Old Redwood Highway is a fantastic opportunity for a developer to purchase a 16,000 square foot lot in an R-2 zone in unincorporated Santa Rosa. The R-2 zoning designation permits up to four legal units and a fifth Accessory Dwelling Unit. The 50% permissible lot coverage and 35-foot height limit could allow for a whopping 24,000 square feet of building area. Reliable income on the current property can offset holding costs as the future community is planned.