Accurate environmental perception constitutes a fundamental prerequisite for adaptive behavior in architectural settings. Rather than functioning as a neutral physical container, the built environment actively shapes perception, cognition, and behavioral responses through the organization of sensory stimuli and spatial relationships. This issue is particularly significant for children with Autism Spectrum Disorder (ASD), whose atypical sensory processing and cognitive characteristics may alter how environmental information is perceived, organized, and interpreted. Difficulties in filtering sensory inputs, distinguishing figure from background, integrating fragmented perceptual cues, and constructing coherent mental representations may prevent these children from understanding the functional meaning of spaces. Consequently, environments that are manageable for neurotypical users may become confusing, stressful, or behaviorally challenging for children with autism. Although previous studies have emphasized sensory-friendly environments and architectural interventions, limited attention has been devoted to explaining the cognitive mechanism through which architectural organization transforms fragmented sensory experiences into meaningful environmental perception. Addressing this theoretical gap constitutes the primary motivation of this research.

Accordingly, this study investigates how architectural environments can be systematically organized according to the sensory and cognitive characteristics of children with autism to facilitate meaningful environmental perception and promote adaptive behavioral responses. The research examines how environmental stimuli may be calibrated for conditions of both sensory hypersensitivity and hyposensitivity while supporting perceptual integration, environmental comprehension, orientation, and behavioral regulation. Rather than proposing isolated design recommendations, the study develops a process-oriented framework explaining the relationship between sensory inputs, cognitive processing, spatial organization, environmental meaning, and behavioral outcomes.

The research adopts a qualitative descriptive–analytical methodology based on an extensive review and synthesis of interdisciplinary literature in environmental psychology, cognitive psychology, autism studies, neuroscience, and architectural design. Behavioral characteristics associated with autism were comparatively analyzed alongside theoretical concepts concerning environmental perception, Gestalt psychology, environmental affordances, classical conditioning, behavioral settings, person–environment fit, spatial legibility, and sensory processing. Through analytical cross-comparison, behavioral impairments were categorized into three interconnected domains: sensory–motor, communicative–social, and cognitive–perceptual. These categories served as the basis for identifying architectural challenges and extracting design principles capable of reducing perceptual disturbances while supporting participation, learning, and adaptive behavior.

The findings indicate that behavioral challenges experienced by children with autism can be systematically addressed through three complementary architectural principles. The first, sensory-oriented spatial design, focuses on regulating environmental stimuli through balanced lighting, calibrated color intensity, acoustic control, tactile materials, visual complexity, and separation of sensory zones, thereby reducing sensory overload and cognitive burden. The second, spatial patterning, emphasizes the controlled simulation of familiar behavioral settings, such as home, school, and everyday environments, to develop stable cognitive representations supporting social participation, learning, and behavioral generalization. The third, spatial sequencing, organizes spaces into predictable and progressively structured sequences that guide children through sensory, functional, and social transitions.

The conceptual synthesis of these three principles leads to the introduction of spatial coherence as the theoretical contribution of the study. Spatial coherence is defined as an architectural condition in which sensory regulation, spatial organization, functional clarity, and cognitive predictability collectively facilitate Gestalt environmental perception. Instead of treating sensory stimulation, behavioral training, and spatial organization as independent concerns, the proposed framework demonstrates that these components operate synergistically within a continuous perceptual process. In this perspective, architecture becomes an active mediator that supports cognitive organization, environmental learning, and behavioral adaptation rather than merely accommodating behavioral needs.

To operationalize this framework, the study proposes linear spatial organization as an architectural strategy for therapeutic and educational environments designed for children with autism. Linear organization provides a clear and sequential spatial structure that minimizes perceptual ambiguity and supports environmental adaptation. The sequential arrangement of private, semi-private, and public spatial zones allows sensory intensity, complexity, and social interaction to increase or decrease progressively according to users' perceptual capacities. Transitional spaces can prepare children for changes in sensory stimulation or social demands. This organization enables children to construct coherent environmental meanings step by step, transforming isolated sensory experiences into integrated cognitive representations while reducing anxiety associated with unpredictable environmental transitions.

The principal innovation of this research lies in establishing a process-based theoretical framework that translates the cognitive characteristics of autism into coherent architectural design principles. By integrating sensory-oriented design, spatial patterning, and spatial sequencing within the overarching concept of spatial coherence, the study explains the cognitive mechanism through which architectural environments influence perception and adaptive behavior. Consequently, architecture is redefined as an educational and therapeutic medium capable of facilitating cognitive development, environmental comprehension, behavioral regulation, and independent functioning. The proposed framework provides practical guidance for architects, educators, therapists, and rehabilitation specialists seeking to create inclusive environments that respond to sensory profiles while improving spatial understanding, behavioral adaptation, independent functioning, and participation in everyday activities. Furthermore, it establishes a foundation for future interdisciplinary research and evidence-based architectural design strategies aimed at enhancing environmental perception and quality of life for children with ASD.