As the Singapore government aims to reach local food production of about 30% by 2030, novel urban farming solutions are required to achieve this aim. Using HDB car park roofs for vegetable farming is a good solution but not sufficient. This thesis explores the possibility of adding urban farming as a façade treatment to blank HDB walls. It does so in three ways. The first is to inventory HDB estates and their blank walls for their ability to support urban farming with respect to solar radiation requirements. The second is to investigate the impact of varying block orientations on their ability to support urban farming. The third is to explore practical solutions to integrating urban farming in HDB building design in a way that is both functional and esthetical. Together, they form a clear statement about the potential future of HDB estate design for urban farming.