# Polka-Dotted Rooftop Gardens The Vacarisses Waste Treatment Facility is Sustainably Designed By Jana Pijak | Published 2012-04-05 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/vacarisses-waste-treatment-facility References: [frameweb](http://www.frameweb.com/news/vacarisses-waste-treatment-facility) & [batlleiroig](http://www.batlleiroig.com/) The Vacarisses Waste Treatment Facility by Batlle|Roig Arquitectes is located on the outskirts of Barcelona. Placed atop a waste landfill site, this sustainably designed space has energy efficiency in mind. With its [vast green roof](https://www.trendhunter.com/trends/shibanee-kamal), this waste treatment plant aims to integrate itself into its [surrounding landscape](https://www.trendhunter.com/trends/landscape-intervention). Featuring two large treatment areas, the building's roof is covered with circular pockets, equipped with earth, gravel, shrubs and weeds. Saving energy, this structure generates its own water and power with the use of a sophisticated [rainwater collection system](https://www.trendhunter.com/trends/manresa-island) and harvested waste that is converted into a useable energy source. Changing the way waste is traditionally handled, the Vacarisses Waste Treatment Facility in Barcelona stays true to the definition of sustainable design, going one step further in creating its own sources of energy. ## Trend Insights (Trend Hunter) - Score: 2.8/10 - Popularity: 43% | Activity: 33% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) > [Eco Architecture](https://www.trendhunter.com/ecoarchitecture) ## Key Themes ### Key Themes Behind This Trend - **Green Roofs:** Opportunity for incorporating green roofs into waste treatment facilities to enhance energy efficiency. - **Circular Design:** Trend towards circular design in waste treatment plants, utilizing innovative features like circular pockets on rooftops. - **Sustainable Energy Generation:** Focus on generating renewable energy from waste as a disruptive innovation opportunity in waste treatment facilities. ### Where This Applies - **Waste Management:** Implementing sustainable design principles in waste treatment facilities to enhance environmental impact. - **Architecture and Construction:** Incorporating innovative features like green roofs and circular design in waste treatment plant construction. - **Renewable Energy:** Integration of waste-to-energy systems in waste treatment facilities creates opportunities for renewable energy generation. ## Related on Trend Hunter - [Plant-Covered Concrete Homes](https://www.trendhunter.com/trends/villa-kd45.md) - [Large Capacity Composting Facilities](https://www.trendhunter.com/trends/organic-waste-processing-facility.md) - [Barrel-Vaulted Roof Parks](https://www.trendhunter.com/trends/zubitegi-park.md) - [Plant-Covered Facade Factories](https://www.trendhunter.com/trends/rollimarchini.md) - [London-Based Garden Roofscapes](https://www.trendhunter.com/trends/roof-garden.md) - [Elevated Water Towers](https://www.trendhunter.com/trends/the-bird-mammal-shelter.md) - [Award-Winning Landscape Projects](https://www.trendhunter.com/trends/landscape-intervention.md) - [Garden-Centric Health Centers](https://www.trendhunter.com/trends/carcavelos-health-complex.md) - [Net-Positive Energy Botanical Gardens](https://www.trendhunter.com/trends/marie-selby-botanical-gardens.md)