INTEGER 'INN' is an eco design hotel for Kunming EXPO Eco-town. It is an experimental project with four focal areas - natural preservation in the EXPO region, low carbon community, healthy and sustainable lifestyle, and new eco-tourism. Buildings make and define the community not only in quantitative terms, but also qualitatively and experientially. We look at more than carbon-accounting and try to explore an integrated sustainable approach. Leisure facilities and a restaurant are embedded into the sloping site on the edge of the eco town. Passing through a lane of bamboo into the entry court and visitor pavilion, guests first encounter the view of the green valley in the glass lobby. Various suites of rooms (including private terraces, courtyards and gardens) are linked to the gardens. Low carbon emission sustainable design strategies include living wall system, reconstituted bamboo finish, super insulated cavity wall, capillary tube mat heating, green turf, photovoltaic energy, solar hot water supply, heat pump, fresh air supply with heat recovery system, grey water treatment, waste management system, biomass boiler, green intelligent management system, low-e glazing with reconstituted timber frame, eco reed bed landscape minimize the project’s environmental impact.