Stefano Boeri Architetti | VERTICAL FOREST
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VERTICAL FOREST

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, was realised in the centre of Milan, on the edge of the Isola neighbourhood, and hosts 900 trees (each measuring 3, 6 or 9 meters) and over 2000 plants from a wide range of shrubs and floral plants distributed in relation to the façade’s position towards the sun. On flat land, each Vertical Forest equals, in amount of trees, an area of 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.

 

Biological habitats Vertical Forest increases biodiversity. It helps to set up an urban ecosystem where different kinds of vegetation create a vertical environment which can also be colonised by birds and insects, and thus becomes both a magnet for and a symbol of the spontaneous recolonisation of the city by vegetation and by animal life. The creation of a number of Vertical Forests in the city will be able to create a network of environmental corridors which will give life to the main parks in the city, bringing the green space of avenues and gardens and connecting various spaces of spontaneous vegetation growth.

Mitigations Vertical Forest helps to build a micro-climate and to filter dust particles which are present in the urban environment. The diversity of the plants helps to create humidity, and absorb CO2 and dust, produces oxygen, protects people and houses from the suns rays and from acoustic pollution.

Anti-sprawl Vertical Forest is an anti-sprawl measure which aims to control and reduce urban expansion. If we think of them in terms of urban densification, each tower of the Vertical Forest is equivalent to an area of urban sprawl of family houses and buildings of up to 50,000 square metres.

Trees are a key element in understanding architectural projects and garden systems. In this case the choice of the types of trees was made to fit with their positioning on the facades and in terms of their height, and took two years to conclude alongside a group of botanists. The plants used in this project will be grown specifically for this purpose and will be pre-cultivated. Over this period these plants slowly got used to the conditions they will be placed in on the building.

Ecology billboards Vertical Forest is a landmark in the city which is able to release new kinds of variable landscapes which can change their form in each season depending on the types of plants involved. The Vertical Forests will offer a changing view of the metropolitan city below.

Management the management of the trees’ pots is under building regulation, as well as the upkeep of the greenery and the number of plants for each pot.

Irrigation in order to understand the need for water the plan for these buildings took into account the distribution of plants across various floors and their positioning.

 

Credits:

Boeri Studio
Partners:
Stefano Boeri
Gianandrea Barreca
Giovanni La Varra

Landscape design:
Emanuela Borio
Laura Gatti

Developer:
Hines Italia srl

Supervision of works:
Francesco de Felice
Davor Popovic

Project leader:
Gianni Bertoldi

Design team:
Alessandro Agosti
Andrea Casetto
Matteo Colognese
Angela Parrozzani
Stefano Onnis

Schematic design and PII leader:
Frederic de Smet

Schematic design and PII team:
Daniele Barillari
Marco Brega
Julien Boitard
Matilde Cassani
Andrea Casetto
Francesca Cesa Bianchi
Inge Lengwenus
Corrado Longa
Eleanna Kotsikou
Matteo Marzi
Emanuela Messina
Andrea Sellanes

 

Design fases: 2006 – 2008

Construction fases: 2008 – 2013

Structures: Arup Italia s.r.l.
Facilities design: Deerns Italia S.p.A.
Detailed design: Tekne s.p.a.
Open Space Design: Land s.r.l. Infrastructure design: Alpina S.p.A.
Contract administration (DL): MI.PR.AV. s.r.l.

 

 

Details

Project
Boeri Studio (Boeri, Barreca, La Varra)
Location
Milan, Italy
Year
2009-2014
Client
HINES Italia Srl
Commission
Residential towers
Surface
40.000 sqm