This document presents a feasibility study for a proposed mixed residential and commercial development in Puchong, Selangor, Malaysia. It analyzes the development under a "sell-then-build" concept, finding it generates a positive net present value of RM8.5 million, indicating viability. However, analyzing the project under a "build-then-sell" concept finds it would result in significant negative cash flow, requiring additional financing and increasing costs such that the developer's profit would decrease from 43% to 34.5%, rendering the project unviable. The use of a build-then-sell model is therefore not recommended for this development.