Turin, Italy

The City of Turin has a population of 1.7 million within an urbanized area of 2.2 million located in the Piedmont region of northern Italy roughly 80 miles west of Milan. Like at least nine other Italian cities, Turin uses a form of TDR as a way of equitably distributing development potential and thereby mitigating some of the land value inequities created by tradition zoning. As a second but important benefit, these programs allow governments to acquire land for public infrastructure at little or no cost (Micelli and Faggiani, 2001).

Turin uses TDR in all areas planned for conversion throughout the entire city. This comprehensive approach is also used in Casalecchio di Reno, Reggio, Emilia, Piacenza, Cesena and Parma. In the alternative approach (used in Ravenna, Padua and Venice), TDR is only used for selected parts of the conversion area (Micelli, 2002).

As in many Italian cities, Turin applies a uniform level of development potential to all the land within a comparable classification of land designated for conversion. However, within each classification, the owners of land planned for public infrastructure (sending sites) cannot use that development potential on site but can sell it to the owners of land identified for private development (receiving sites). The owners of the receiving sites can build at or below the baseline density or can exceed baseline by acquiring TDRs from the owners of the sending sites. This approach is intended to equalize the monetary effects of zoning and maintain higher property value for the sending sites than would occur if the city gave little or no development potential to these sites and then acquired them through condemnation at a reduced price. After the sending site owners have sold their TDRs, they give the property to the jurisdiction or sell it to the jurisdiction at an agricultural land value, thus delivering the programs’ other major benefit of allowing the jurisdiction to cheaply acquire land for public facilities.

As with other Italian TDR programs, Turin first determined the appropriate number of land classifications to use. Some cities decide that all of their conversion land is essentially homogenous and they create just one large category. Other cities find the conversion land to be sufficiently different to warrant as many six classifications. The creation of these land classes requires what appears to be a balancing of economic, legal and other criteria that identify categories of land that ought to have comparable value based on concepts of fairness and perhaps common sense. Turin developed four classes: urban renewal zone; renewal areas for services; urban and river parks; and natural hill parks (Micelli, 2002).

All land within each of Turin’s four classes has the following baseline development potential regardless of whether or not it is planned for public facilities and therefore a sending site.

  • Urban renewal zone: 0.70 square meters of development per one square meter of land area
  • Renewal areas for services: 0.23 square meters of development per one square meter of land area
  • Urban and river parks: 0.05 square meters of development per one square meter of land area
  • Natural hill parks: 0.03 square meters of development per one square meter of land area

Turin also uses design objectives to divide each class into geographic areas with as few property owners as possible. Transfers are limited to the sending and receiving site owners within these geographic areas. Although the transfers are private sector transactions, the city facilitates and provides information.

Renard (2000) reports that between 1997 and 2000, 2.5 million square meters were or were being transformed (presumably using TDR).

Micelli, E., and Faggiani, (2001) A. New Tools for Land Policy in Italy. Paper presented at the 8th European Real Estate Society Conference. Alicante 26-29 June 2001.

Micelli, E. (2002) Development rights markets to manage urban plans in Italy. Urban Studies. Vol. 39. No. 1.

Renard, V. (2000) Land markets and transfer of development rights: some examples in France, Italy, and the United States. In Fossati et. al. Tourism and Sustainable Economic Development. Kluwer Academic Publishers.