Step into a piece of architectural history in Carthage's South District, as recognized on the National Register of Historic Places with the Former Irwin House, an iconic Queen Anne residence rich in character, craftsmanship, & timeless appeal. A striking roofline adorned w/intricate finials & patina copper roof caps immediately sets the tone for this one-of-a-kind home.Offering 4 bedrooms, 2.5 baths, plus the potential for a 5th non-conforming bedroom, this home blends historic charm w/everyday functionality. From the moment you enter, a stunning grand staircase creates a memorable first impression in the foyer. Designed for both entertaining & comfortable living, the main floor features dual living spaces, including a refined parlor & a welcoming family room. The formal dining room is truly exceptional, showcasing stained glass windows, elegant built-in glass cabinetry, & timeless detailing. Throughout the home, you'll find rare historic elements including cedar line closets, transom windows & three functioning pocket doors. The updated kitchen offers modern convenience without sacrificing charm--complete with granite countertops, stainless appliances, eat-in bar, & a cozy breakfast nook, just around the corner from a cozy morning porch. Outdoor living is just as captivating with a covered wrap around porch, a peaceful sleeping porch off the primary suite, & a second-story porch overlooking Main Street, perfect for soaking in the home's historic surroundings. Adding exceptional versatility is the separate Accessory Dwelling Unit (ADU) w/alley access & a 1-car attached garage. Offering approximately 728 sq ft of additional living space, this space includes a 1/2 bath, brick fireplace, & built-in cooktop--ideal for an in-law suite, guest quarters, recreation space, pool house, or potential income-producing opportunity. A rare opportunity to own a distinguished historic property where original character and modern updates coexist beautifully.