The catalytic conversion of C1 molecules (e.g. methane, methanol, carbon monoxide and carbon dioxide etc.) represents a pivotal strategy for high-value chemicals and carbon neutrality. Zeolites, by virtue of their high specific surface area, substantial adsorption capacity, uniform molecular-scale pore architectures, exceptional thermal and hydrothermal stability, and well-defined micropores that confer superior shape-selectivity, are higly efficient heterogeneous catalysts within the petrochemical and fine chemical sectors. The targeted design and synthesis of zeolites with tailored properties are therefore critical for advancing their application in C1 valorization processes. Within this review, we survey the decisive impact of zeolite characteristics on the catalysis of C1 transformations. The interplay of structural (framework topology and hierarchical design), chemical (acidity and, wettability), and physico-chemical (confinement effects) properties will be analyzed in the context of pivotal conversion of C1 molecules processes, such as the selective oxidation of methane, methanol-to-olefins (MTO), Fischer-Tropsch (FT) synthesis, as well as CO₂ hydrogenation etc.