Bosco Verticale, Milan. #Green-infrastructure in the sky.

The Bosco Verticale mixed-use towers were constructed with a $2.5 billion public-private investment as part of the redevelopment of Milan’s Porta Nuova district. The towers, measuring 260 feet and 367 feet, house 800 trees between 9 and 30 feet tall, over 4,000 shrubs, and 15,000 ground cover plants including vines and perennials. Created with LEED Gold certification in mind, Bosco Verticale is also equipped with a gray water recycling and irrigation system as well as photovoltaic solar cells.

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Already attracting a thriving bird population that has already begun to nest in Bosco Verticale’s foliage, of which over a hundred different species of trees and shrubs are represented. “The real key to this project is biodiversity,” says Boeri.

The superstructure was also recently shortlisted for the International Highrise Building Award 2014 as one of the five most beautiful and innovative high-rises in the world that were recently completed. Boeri is currently in China, where he plans to replicate the Bosco Verticale project.

The plants used for the building are geared toward species that can tolerate restricting soil conditions, and how effectively they can provide shade during the summer and absorb outside pollutants. Holly oak trees and European wild pear are among the trees being used for the project, as well as shrubs such as Cain Apples and Hawthorns.


“Vertical Forest is a model for a sustainable residential building, a project for metropolitan reforestation that contributes to the regeneration of the environment and urban biodiversity without the implication of expanding the city upon the territory. It is a model of vertical densification of nature within the city that operates in relation to policies for reforestation and naturalization of large urban and metropolitan borders. The first example of the Vertical Forest composed of two residential towers of 110 and 76 m height, will be realized in the centre of Milan, on the edge of the Isola neighbourhood, and will host 900 trees (each measuring 3, 6 or 9 meters tall) and over 2000 plants from a wide range of shrubs and floral plants that are distributed in relation to the façade’s position to towards the sun. On flat land, each Vertical forest equals, in amount of trees, an area equal o 7000 m2 of forest. In terms of urban densification the equivalent of an area of single family dwellings of nearly 75.000 m2. The vegetal system of the Vertical Forest aids in the construction of a microclimate, produces humidity, absorbs CO2 and dust particles and produces oxygen.”

Text + Image Source:

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The studio led by Italian architect Stefano Boeri came up with the concept of Bosco Verticale, or Vertical Forest, as a way to combine high-density residential development with tree planting in city centres.  “This is a kind of biological architecture that refuses to adopt a strictly technological and mechanical approach to environmental sustainability,” Source:  Boeri Studio, Dezeen

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  1. JESUS ALEN, arquitecto

    It is a good idea for south and east, but hat´s the mater with north,? and how it cost. structurally and manteinance of this kind of solution?. It has been built in an oficce´s building at Barcelona 25 years ago and they had to clean of plants the building….

  2. Pingback: Has green gone mainstream? | Landscape Interface Studio

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