Porta Nuova Milan: The City's Modern Skyline District

Porta Nuova is Milan's most spectacular urban transformation project — a vast commercial and residential development in the Isola and Varesine districts that has given Milan the contemporary skyline it lacked for most of the 20th century. The project, developed over the decade from 2004 to 2015, includes César Pelli's gleaming Unicredit Tower (the tallest building in Italy), Stefano Boeri's internationally celebrated Bosco Verticale (Vertical Forest) apartment towers whose cascading terraces of trees have become Milan's most photographed modern buildings, and a network of public parks and squares that have transformed what was once a derelict railway yard into the city's most dynamic new neighbourhood.

Bosco Verticale has become an icon of sustainable urban architecture — two residential towers of 80 and 112 metres planted with more than 900 trees, 5,000 shrubs, and 11,000 perennial plants distributed across protruding concrete balconies that protrude in different directions at different levels. The concept of a vertical forest — trees growing at heights of 20, 50, or 80 metres above the street — was initially met with scepticism but has proved both structurally sound and genuinely successful as an ecological intervention, providing insulation, shade, and a microclimate that noticeably differs from the surrounding concrete city. The buildings' distinctive silhouette appears on the skyline from across Milan, marking the Porta Nuova development's central position in the new city.

The public spaces of Porta Nuova are excellent — Piazza Gae Aulenti, named for the Italian architect, is a raised circular plaza surrounded by commercial towers that hosts public events, outdoor exhibitions, and an ice rink in winter. The adjacent Biblioteca degli Alberi (Library of Trees) park is a beautifully designed public garden of 135,000 square metres planted with indigenous trees and meadow planting. The area connects to the Brera neighbourhood and Garibaldi railway station, making Porta Nuova easily accessible and a natural complement to a visit to historic Milan's northern districts. The neighbourhood's restaurants and wine bars attract Milan's business and design communities for lunch and post-work aperitivo.