High-performance concrete (HPC) is a technologically advanced material but poses some sustainability concerns. An HPC was developed at FEUP, with a massive partial replacement of Portland cement with limestone filer and glass powder as supplementary cementitious materials. In that scope, a wide experimental plan was performed to evaluate relevant engineering properties for the envisaged applications (façade elements), including compressive strength, electrical resistivity, reflectance, thermal conductivity, emissivity, water permeability, and impact resistance. Results showed that the HPC achieved a compressive strength exceeding 90 MPa after 28 days. Electrical resistivity increased over time, reaching 116 Ω.m, indicating a dense microstructure with refined pores due to hydraulic and pozzolanic reactions. The material’s light colour correlated with the obtained high reflectance, while its thermal conductivity was slightly higher than that of conventional dry concrete due to retained moisture. High emissivity, likely linked to GP, suggests enhanced solar radiation emission. Minimal moisture content variations between saturation and 80% humidity further confirmed the dense structure. Water absorption tests indicated near-impermeability, ensuring stability under diverse environmental conditions. Incorporating locally sourced SCMs improves sustainability by reducing landfill waste and embodied CO₂ emissions through lower cement consumption. The study highlights the feasibility of producing sustainable HPC with ternary blends of limestone filler and GP, offering a viable pathway for high-performance, eco-friendly construction materials.