A true Port Colborne landmark, 171 Killaly Street West has stood as a cornerstone of the community since 1863. This magnificent triple-brick, Heritage home offers over 3,100 sq. ft. of living space, soaring 10.5 ft ceilings, and the kind of irreplaceable character that simply cannot be replicated today. Offering exceptional flexibility, this property presents the opportunity for a multi-unit home and is ideal for multigenerational living, large families, or those seeking potential rental income. Inside, you'll find 6 bedrooms and 3.5 bathrooms, along with a spacious kitchen, formal dining room, main floor family room, laundry, and a 4-season sunroom that brings in beautiful natural light and yearround comfort. Outside, the property continues to impress with a detached 30x24 garage featuring radiant heat and hydro, offering excellent potential for additional living space, workshop, or studio use. A separate carriage house addition further expands the possibilities, complete with its own living space, loft, and private fenced outdoor area-ideal for extended family, guests. Two driveways, a large rear deck, and generous outdoor space further enhance the property's overall function and usability. With updated electrical, and plumbing throughout, this historic residence blends timeless character with modern upgrades. Perfectly positioned in a family-friendly location directly across from McKay Elementary School and within walking distance to Port Colborne High School, this property also offers easy access to parks, the Welland Canal waterfront, local restaurants, boutique shopping, and all the charm that downtown Port Colborne has to offer. This is a rare opportunity to own one of Port Colborne's most iconic addresses.