Roppongi Hills in Tokyo is often mentioned as one of the largest and most successful urban renewal projects ever undertaken in post-World War II Japan. The project began in 1984 and took approximately 17 years to complete. The plan involved the city administration, the real estate company Mori Building Co. and residents living in the construction area. It took the company over 15 years just to reach agreements with 500 claimants (“Roppongi Hills.”). The concept of the renewal plan seems totally opposite to that of Jane Jacobs, but there is a point in the history of this Roppongi renewal plan that is equivalent to its philosophy. Jane Jacobs' idea of ​​a local community in the city was accidentally realized during the construction process of Roppongi Hills half a century later in Japan. Roppongi Hills is one of the largest and most beautiful mega-complexes in Japan. They include offices, apartments, shops, restaurants, bars, cinemas, a museum, a hotel, a major television studio, an outdoor amphitheater and several parks. They are located in the Roppongi district of Minato Ward and cover 11.6 hectares of the area. About 20,000 people work in offices, restaurants and shops, and 2,000 people live in residential towers. On weekends around 130,000 people visit the site (Matsutani). They are equipped with many of the latest earthquake-proof technologies, such as damping walls, green mass dampers and emergency power generation systems. They also have a self-sustaining cogeneration and water supply system so that they can function on their own even in the event of a large earthquake (“Safety and Security”). 25% of the site is covered with greenery, which mitigates the heat island effect and brings the temperature in the area to 2-3 degrees C l...... middle of paper ......nt redevelopment of the city of Tokyo today.Works citedBremner, Brian. “Rethinking Tokyo”. Business Week. Bloomberg LP, 4 November 2002. Web. 11 November 2011. “Environment and greenery”. Mori Building Co. Mori Building Co., Nd Web. Nov. 12, 2011. Jacobs, Jane. The death and life of great American cities. New York: Random House. 1989.Print.Kubota, Hikari. From Roppongi Hills to Jumin-undo [Roppongi Hills and the local residents' movement]. Kubota Hikari Office. Nd Web. 21 November 2011.Matsutani, Minoru. “As a Status Symbol, it surpasses all others.” The Japan Times. The Japan Times, November 10, 2009. Web. November 11, 2011. "Roppongi Hills." Mori Building Co. Mori Building Co., N.d. Web. Nov. 12, 2011. “Safety and Security.” Mori Building Co. Mori Building Co., Nd Web. November 12, 2011. “Urban Design by Mori Building.” Mori Building Co. Mori Building Co., Nd Web. November 12.2011.