Low carbon cities are the effort of the leaders in achieving sustainable development. The gap is despite the LCCF Checklist is readied but not all implement in planning permission at the local authority. The objective is to study a challenge for policymakers in the approach of the LCCF Checklist in development control. The methodology is a mixed-method, namely quantitative and qualitative approaches. The findings of the LCCF checklist are identifying as important in planning permission into the development control process. Surprisingly, the challenges exist in the implementation of the LCCF Checklist in the development control process.