This article provides a Construction Grammar (CxG) analysis of the Complex Modifier Construction (CMC) in English and an investigation of its productivity in World Englishes with a particular focus on African and South-East Asian Englishes. By examining data from the Corpus of Global Web-based English (GloWbE), we seek to establish whether the productivity of the construction correlates with the developmental phase of the variety of English in Schneider’s Dynamic Model of Postcolonial Englishes, or whether language contact, and particularly the typological profiles of the local substrate languages (head-initial versus head-final syntax), affects productivity. We find that evolutionary progress is indeed a relevant factor insofar as the most advanced ‘Inner Circle’ varieties are concerned, but we also observe substantially lower productivity in the African varieties of English when compared to the South-East Asian Englishes represented in the corpus. As the main substrate languages in the African countries under study have head-initial syntax and those in the South-East Asian countries head-final syntax, we conclude that the productivity of complex premodifiers is affected by the multilingual situation in these regions and propose that language contact should be considered more closely as an explanatory factor in future studies of constructional productivity in World Englishes.