This study integrated phase change material (PCM) encapsulated in steel capsules into concrete bricks. Bricks with 2 or 3 capsules containing PCM were used to construct prototype south-facing walls. Testing found that the 3x1 PCM brick wall reduced maximum inner wall temperatures by up to 2.7°C compared to a reference wall, providing better thermal comfort on hot days in New Delhi. While both PCM walls performed better than the reference, the 2x1 PCM wall maintained a larger temperature difference at night, indicating it more effectively stored and released heat. Integrating PCM into building materials like bricks has potential to reduce energy use for cooling in hot climates.