The "coastal grandma" interior design aesthetic draws inspiration from relaxed beachside living, blending classic, timeless elements with the effortless charm of coastal life. It features soft, muted colors like whites, soft blues, and sandy neutrals, paired with natural textures such as wicker, rattan, and linen. The style leans toward comfort and casual elegance, with cozy furnishings, vintage-inspired pieces, and subtle nautical accents, like stripes or seashell motifs. It's a look that combines elements of old-world charm with laid-back, beachy vibes, evoking a sense of calm and timeless sophistication—ideal for creating a welcoming, serene home that feels like a peaceful retreat by the sea.