Welcome to 100 Terrace Ave, a spacious and versatile legal duplex located in a quiet, family-friendly Welland neighbourhood. This property offers two completely separate units, each providing approximately 1,000 sq. ft. of comfortable living space, ideal for multi-generational families, homeowners seeking additional income, or investors looking for a strong turnkey opportunity. The main unit features 3 generously sized bedrooms, a 4-piece bathroom, a bright living room, and a functional kitchen with plenty of cabinet space, making it perfect for a growing family. The beautifully updated lower unit offers surprising comfort with 8 ft. ceilings throughout the kitchen & living areas, exceptional natural light, 2 large bedrooms each with walk-in closets, a modern 3-piece bathroom, a spacious open-concept kitchen with white appliances including a dishwasher, and a spacious living area. Additional features include private laundry for each unit & separate hydro meters . Located close to Niagara College, the Seaway Mall, restaurants, parks, and 406 access, this home provides flexibility, convenience, and strong value in one of Welland's most desirable pockets. Updates include a new fence (2017), roof (2017), windows (2019), a/c (2018), furnace (2021), and tankless water heater (2021).