The Main Post Office on Jalan Tun Haji Openg stands as a distinguished example of Kuching’s cosmopolitan architectural heritage. Completed in 1931, the building reflects early 19th-century neo-classical influences, prominently featuring elegant Corinthian columns — a rare distinction that makes it the only structure in Sarawak designed with such architectural elements.
Its deep parapet walls conceal the pitched roof, while a graceful colonnaded portico functions as a sheltered corridor, enhancing both form and functionality. In contrast, the rear façade presents a simpler and more restrained design, creating a balanced architectural composition.
Since its completion, this magnificent landmark has remained in continuous service as the General Post Office, underscoring its enduring historical and civic significance.