Current Philippine housing trends follows the exemplars of housing design in the U.S. and Europe. You commonly see advertised in new developments showing Mediterranean-inspired, Italian style, Spanish Villa, Mexican style, Renaissance, Baroque decoration, American Modern, American Colonial, Canadian Cabin, and anything in between that is remotely Filipino. These designs, though attractive, are incompatible with the Philippines’ hot-humid tropical climate resulting in high energy and operation costs. We need to redefine the concept of “beauty” in Filipino houses that demonstrates indigenous tropical design that are inexpensive and an alternative to the usual housing solutions. We need to redefine Filipino tropical living. The design goal challenged the design team to strive for the highest sustainable tropical design possible within a limited budget. A “less is more” mindset drove the design team to think “outside the box”. Only essential elements remain in the finished structures. EcoKubo is designed to sustain the varied life patterns of the dwellers, from the handicap accessible entrance ramp to the adaptable sleeping areas. The modest project budget is the primary reason the team is using a rice straw bale wall system, a bamboo reinforced concrete system, bamboo screens and bamboo slats flooring. Ecokubo’s main sustainable design objective is for the house structure be a vital part of the site’s ecosystem. ENVIRONMENTAL, SOCIAL & ECONOMIC IMPACT AGENDA Our design needs to address and commit to the Social, Environmental and Economic dimension of Sustainable Development of the built environment, with special attention to the Filipino’s cultural heritage. SOCIAL DIMENSION COMMITMENT. The design uses local indigenous materials and construction methodology which contributes to hiring local workers and firms. Its Ecosan and biological wastewater treatment system will make sure water leaving the site is clean and therefore improve the sewage disposal in the area. The rainwater harvesting system with its filtration system promotes access to safe drinking water all year round. Its affordable construction cost contributes to low to middle-income housing while improving typical living conditions. Its design positively impacts the Filipino culture and architecture by incorporating sustainable design principles of the vernacular “bahay kubo”. ENVIRONMENTAL DIMENSION COMMITMENT. Quantity of GHG emitted during material extraction, manufacture, transport, house construction, operation and de-construction is drastically minimized. The design and the technology used helps reduce the GHG emitted, the quantity of Ozone Depleting Substances used and indoor air pollution. The soil conditioner produced by the composting toilet and the trash composting bin eliminates the use of chemical and synthetic fertilizers. Selected local tree species planted in the site eliminates virgin forest wood harvesting for fuel use and construction material. The use of water efficient plumbing fixtures and the use of rainwater harvesting makes EcoKubo Net-Zero water efficient. The project restores the site’s ecosystem and promotes biodiversity thru responsible native species selection. ECONOMIC DIMENSION COMMITMENT. Its compact, open design is geared to reduce use of materials and the intensity of energy use. Its backyard composting bin reduces municipal solid waste generation and disposal. The building materials used maximizes waste recycling and reuse, and ease of service and maintainability of the structure. Because of its innovation in using local materials, it contributes to research and development of indigenous building material technology. Due diligence in verifying the site’s potential hazards protects dwellers’ economic and human loss to natural disasters.