The share of embodied carbon (EC) in a building’s total emissions continues to rise as operational emissions decline in energy-efficient buildings, underscoring the need for EC quantification and mitigation. In Saudi Arabia, where rapid urbanization and large-scale residential development are central to Vision 2030 and the national net-zero 2060 target, addressing EC is increasingly crucial. This study assesses the embodied carbon of predominant residential building types through an integrated Life Cycle Assessment (LCA) and Building Information Modeling (BIM) approach. Material quantities were extracted using BIM and imported into One Click LCA to calculate cradle-to-handover (A1–A5) global warming potential (GWP). To ensure datasets reflect actual Saudi construction practices, locally sourced, manufacturer-specific, third-party-verified Environmental Product Declarations (EPDs) were prioritized. Module A4 emissions were estimated using software-based localization, while A5 emissions were derived by adjusting dataset emission factors to reflect the Saudi electricity mix. The resulting GWP values were normalized by gross floor area and assumed building lifetime to generate metrics consistent with international literature and suitable for comparison. Findings indicate that buildings with larger floor areas tend to exhibit lower GWP per square meter due to shared structural systems and common envelopes that distribute material demand more efficiently. The normalized GWP ranges between 12 and 17.7 kg CO₂e/m²/year, dominated by contributions from concrete, steel, and aluminum, while material intensity coefficients vary between 1762.6 and 2687.9 kg/m². A sensitivity analysis using alternative low-carbon EPDs for concrete and steel demonstrates the potential for GWP reduction through low-emission material choices. Overall, this study establishes statistically derived preliminary EC baselines for Saudi residential buildings based on collected building samples, providing an initial reference to support future national carbon baseline development, integration into housing codes, and informed material and design decisions essential for advancing Saudi Arabia’s decarbonization pathway.