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The development project for Barcelona, 1859.

Ensanche means "widening" in Spanish. It is used to name the development areas of Spanish cities around the end of the 19th century, when the demographic explosion and the Industrial Revolution prompted the tearing down of the old city wall and the construction of neighborhoods under grid plans.

The program of city extensions in Spain began simultaneously in 1860 with the plans for Barcelona by Ildefons Cerdá and Madrid by Carlos Maria de Castro,[1] influenced by Haussmann's transformation of Paris from 1852 (and, in turn, have been said to have influenced Haussmann's later projects). Those ensanches extended cities beyond their traditional limits by demolishing city walls, transforming riverbanks and subdividing the "extramuros" – rural land outside the city walls. Ensanches were generally based on principles articulated by Cerdá.[2] These included reserving significant open space by requiring mid-block open space and whole block parks. The height of buildings was set by reference to the width of the adjacent street. Many of these requirements were modified, and the building volumes increased, by later amendments beginning in 1864 (Madrid).[3]

It is specifically used for:


  1. ^ GeoJournal 24.3/1991 p.294
  2. ^ Ildefonso Cerdá, Teoría general de la urbanización y aplicación de sus principios y doctrina a la reforma y ensanche de Barcelona, Madrid, 1867
  3. ^ http://tercud.ulusofona.pt/index.php/pt/documentos-on-line/category/6-2008?download=323:garcia-garciam-et-al-2008