We present a new corpus of child and child-directed speech (CDS) in Palestinian Arabic. It includes transcriptions following the CHILDES guidelines and features recordings of 16 monolingual Palestinian Arabic-speaking children with an age range of 19–58 months and their adult interlocutors. We analyse the children’s morphosyntactic development and identify a variety of target word orders (45 in child speech, 50 in CDS), with prevalent SV(O) structures; we also found high rates of null subjects in both populations, marginal errors in children’s verbal agreement morphology, and early emergence of serial verb constructions, observed from 23 months of age.