This research involves the study of two models of green facades and a model of bare wall. A house miniature was used as thermal lab. The aim of the project is evaluating the performance of energy transfer based on the various leaves densities on the green facade. Heat calculation was used to calculate heat transfer on the wall surface. There are two kinds of leaves densities, 50% and 90%. The data measurement show that the green facade has a significant cooling effect and more visible for the facade with higher leaves densities. Respectively, from experiment I to experiment III, the average of heat fluxes are 22.35 W/m2, 8.76 W/m2, and 0.60 W/m2 where in experiment III, the negative heat flux occurred during day time due to interior surface temperature is higher than exterior surface temperature. Lastly, higher leaves densities possibility can create a better cooling effect but also has the risk of creating higher relative humidity, especially for the interior air layer.

nowadays, sustainability has become an important issue in any development project, including area development. Thishappen because the area development requires space, in this case land. As people developing land, it damages theenvironment. It means there will be less balance between built environment and natural environment. This calls forconcern in urban sustainability. One of the ways to restore the balance is to reduce as much land as possible to be builtby maximizing the space. This paper will explore the multiple space use in terms of mixed-use development in differentlevel and also assess mixed land use implementation, which include the concept of diversity in urban sustainability

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