The home environment is a significant factor that greatly influences the motor development of children. This study aims to examine the cultural adaptation validity and reliability of the Affordances in the Home Environment for Motor Development (AHEMD-SR) for Turkish children aged 18--42 months. The study included 103 Turkish children (mean age = 29.3 ± 7.4 months; 57.3% female, 42.6% male). The majority of participants were from middle-income families. The AHEMD-SR was administered to parents, and test-retest reliability was evaluated with a subsample of 30 families. The Cronbach's alpha coefficient and Intraclass Correlation Coefficient (ICC) were calculated to assess reliability, while correlations with the Denver Developmental Screening Tool 2 (DDST-2) were examined for convergent validity. The Cronbach's alpha coefficient of the AHEMD-SR was 0.815, and the ICC for test-retest reliability was 0.889. The AHEMD-SR total score correlated with DDST-2's social development (r = 0.32), fine motor development (r = 0.33) and gross motor development (r = 0.33) domains (all p < 0.05). The Turkish version of the AHEMD-SR was found to be a valid and reliable tool for assessing the home environment's impact on motor development in children aged 18-42 months. This questionnaire can provide valuable insights into how to enhance home environments to better support children's motor development in Turkey.