400 4th Avenue SW presents an exclusive opportunity to acquire a premier, institutional-quality office asset in the heart of Calgary’s Financial Core. This 33-story Class A tower occupies a full city block with direct connections to four adjacent properties via the Plus-15 pedway network, ensuring comprehensive accessibility. Recently upgraded with over $90 million in enhancements, the property now features modern elevator lobbies, improved washrooms, a refreshed fitness center, and premium office interiors. The entire 683,667-square-foot building is leased to Canadian Natural Resources Limited under a brand-new 15-year lease rated “A (low)” by DBRS, providing highly secure, investment-grade income. With significant contractual escalations throughout the term, this asset offers predictable, long-term cash flow backed by one of Canada’s strongest corporations. Positioned along 4th Avenue SW, a major downtown arterial, and only one block from Calgary’s upcoming $6.2 billion Green Line LRT station, this property delivers exceptional connectivity and long-term positioning in a core market.