- The laying of the cornerstone marks the start of one of the most significant urban development projects in the Community of Madrid.
- The development, located in Alcorcón, covers an area of 114 hectares and calls for the construction of 3,503 housing units, of which more than 1,100 will be affordable housing.
- The event was attended by Pedro Sánchez, Prime Minister of Spain; Isabel Rodríguez, Minister of Housing and Urban Development; Óscar López, Minister for Digital Transformation and the Civil Service; and Candelaria Testa, mayor of Alcorcón.
Alcorcón, September 30, 2025. Retamar, the new residential development located in the northwest of the municipality of Alcorcón, has held a groundbreaking ceremony. The project calls for the construction of 3,503 homes, 1,123 of which will be subsidized in some way, as well as the creation of an extensive network of green spaces and areas designed to promote sustainable mobility.
The event, which marked the start of the urban development work, was attended by Pedro Sánchez, President of the Government of Spain; Isabel Rodríguez, Minister of Housing and Urban Agenda; Óscar López, Minister for Digital Transformation and the Civil Service; and Candelaria Testa, mayor of Alcorcón.
The mayor of Alcorcón explained that Retamar “will have 1,123 housing units with some form of public housing assistance” and that it will be a “sustainable and well-connected neighborhood.”
For his part, the Prime Minister highlighted the importance of projects that include public housing, such as the one in Retamar: “Today’s event marks a step forward for one of the largest land development projects in the Community of Madrid.”
According to Darío Rivera, president of the Compensation Board, “Retamar aims to become a driver of development for Alcorcón and for the entire Community of Madrid, reflecting a shared commitment to sustainability, innovation, and the future of our cities.” He also highlighted “Retamar’s ability to bring new homes online thanks to much-needed public-private partnerships” and praised “its contribution to addressing growing social demands regarding housing and sustainability.”
Retamar de la Huerta, with a total area of 114 hectares, is one of the most significant urban developments in the Community of Madrid. Its launch will make a decisive contribution to expanding the housing stock, with a model that prioritizes sustainability and integration with the natural environment.
Green Spaces and Sustainable Mobility
Retamar is committed to a city model based on a human scale in terms of road widths and building heights, in which nature and sustainable mobility will be essential elements. The project will feature 30 hectares of green spaces, in addition to 14 hectares of urban parks, nearly 6 kilometers of pedestrian paths, and 7 kilometers of bike lanes, with an investment of 14.5 million euros in initiatives directly linked to sustainability. In addition, a significant investment of approximately 15 million euros will be made in infrastructure to ensure that Retamar is connected to all services in Alcorcón and its metropolitan area.
About Retamar
Retamar is the new residential development in southwest Madrid. Located northwest of the municipality of Alcorcón, it is one of the most significant developments in the Community of Madrid from an environmental perspective, focusing on residential living and a connection to nature while highlighting the nearby natural surroundings and strengthening its green infrastructure. A haven close to the capital that balances quality of life—and its commitment to environmental, social, and economic sustainability—with the convenience and services of urban living. More than 3,500 homes with over 30 hectares of new green spaces, designed with a spatial concept that prioritizes a human scale and a connection to the surrounding natural environment.
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