The environment-behaviour of a cul-de-sac courtyard poses an array of intriguing questions, both qualitatively and quantitatively. In establishing a systematic and reliable evaluation of these micro-neighbourhoods, a sequence of procedural best practices of an evaluation toolkit was introduced. Documenting measurable evidences as well as illustrating the anecdotal nature of a cul-de-sac courtyard requires specific and duplicable chronicling processes. The Cul-de-sac Courtyard Physical Environment Evaluation Toolkit (CPEET), adapted appropriately from AEDET Evolution and ASPECT, became the foundation of the toolkit.2398-4295 © 2016. The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK.. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.Keywords: Cul-de-sac courtyards; evaluation toolkit; best practice; cul-de-sac syntax