Caring for animals, particularly strays, presents a critical challenge for contemporary societies. This thesis seeks to examine the relationship between architecture and animal welfare, highlighting how innovative design can address this pressing social challenge. By providing a historical perspective, the study explores the origins of animal care architecture and traces the evolution of practices that inform contemporary approaches. The thesis investigates the struggle of stray animals, exploring the reasons behind their abandonment, the challenges they face, and the role of shelters in their care and rehabilitation. Additionally, it examines the legislative framework governing the establishment of facilities for animal welfare, as well as the design and operation of municipal shelters. A significant part of the research focuses on animal welfare organizations in Greece, documenting their initiatives, challenges, and resource deficiencies through surveys and visual documentation. The study offers an in-depth look into the shortcomings in shelter provisions, equipment, and construction. Additionally, case studies of private initiatives and organized shelters are presented, highlighting practical solutions and inspiring examples of innovative design. The research concludes by envisioning the conditions of an ideal shelter, illustrated with sketches and diagrams, as a guide for future implementation. By merging architectural analysis with human compassion, this thesis aspires to advocate for a more sustainable and welcoming environment for animals and humans alike, giving a voice to those who cannot speak for themselves.