280 Heritage Avenue, Unit A presents a well-positioned 5,100 SF flex/industrial opportunity within one of Portsmouth’s most established commercial corridors. The space is well suited for service contractors, distribution users, light industrial operations, and businesses seeking a functional combination of warehouse, office, and storage space. The unit consists of approximately 4,200 SF of warehouse space with 19-foot clear height, providing excellent functionality for racking, equipment, inventory storage, and operational efficiency. Supporting the warehouse is 900 SF of first-floor office space suitable for administrative, dispatch, or customer-facing operations. An additional 900 SF of reinforced second-floor storage offers efficient supplemental storage capacity without reducing usable warehouse area. Strategically located just off Route 1 with convenient access to Interstate 95, the property provides strong regional connectivity throughout the New Hampshire Seacoast, Southern Maine, and the Greater Boston area. Lease Rate: $14.00/SF NNN Lease Term: 3–5 Years Preferred This offering presents a strong opportunity for businesses seeking clean, efficient flex/industrial space in the Portsmouth market.