Pervious concrete (PC) play an important role in addressing urban environmental issues by facilitating water infiltration, reducing surface runoff, and mitigating urban heat islands. This study presents an improved method for optimizing PC mixtures by means of utilizing an augmented simplex centroid design methodology with the intention of improving both compressive strength and permeability for a target porosity. The augmented simplex centroid design consists of ten design points representing different aggregate portions and each vertex corresponding to a single type of aggregate gradation. The design points are then employed to generate contour plots showing the optimal aggregate proportions necessary for achieving specified bulk density and porosity. The findings in the study indicated that Binary-2 mix had a significantly higher compressive strength at 12.9 MPa, in comparison to other mixes owing to its more abundant large sized aggregates. Conversely, those mixes having more quantities of smaller aggregates had lower compressive strengths. Results also showed there was a strong correlation between porosity and permeability with higher porosity mixes resulting in greater permeabilities. While Binary-1 and Ternary mixes had slightly better permeability characteristics, Binary-2 mix was more desirable in strength parameter. These findings highlighted the importance of achieving the optimal proportion of aggregates to produce a desired PC mix which can be efficiently determined using the simplex centroid approach. This approach provides a simple and cost-effective method for designing pervious concrete to meet specific performance criteria.