The National Survey on Rehousing Needs considers as "undignified housing conditions": i) inexistence of a place of residence or absence of an alternative housing solution to the place they have to vacate; ii) dwellings without minimum conditions of habitability or without structural security; iii) insufficient housing for the composition of the family; and iv) incompatibility of the dwelling with the persons residing therein (Instituto da Habitação e da Reabilitação Urbana, 2018).

NextGenerationEU, is described as a policy, which goes beyond the recovery plan, as an opportunity "to emerge stronger from the pandemic, transform our economies and societies and build a Europe that works for all" (União Europeia, 2022) and is identified as a "strategic EU recovery instrument created by the European Council to mitigate the economic and social impact of the pandemic crisis on European economies" (Portal da Habitação, 2022a).

Within the scope of this policy, the Recovery and Resilience Facility was created, to be executed until 2026. This financial package mechanism is translated into measures for the implementation of reforms and investments, in line with the objectives of the European Union and of the country in question. Housing is one of the nine components included in the resilience dimension. The housing component, numbered C2, aims to "respond to structural and permanent or temporary shortages in housing" (Portal da Habitação, 2022b), and the entity responsible for such investments is the IHRU.

Resolution of the Council of Ministers 50-A/2018, of 02/05/2018; Decree-Law 37/2018, 04/05/18; Ordinance 230/ 2018, of 17/08/18; Decree-Law 84/2019, of 28/06/19; Decree-Law 81/2020, of 10/02/20; Ordinance 41/2021, of 02/22/21, and Ordinance 138-C/2021, of 06/30/21.

Decree-Law 37/2018, of 04/06/2018, amended by: Decree-Law 84/2019, of 28/06/19 (art. 184), Decree-Law 81/2020, of 2/10/20, Decree-Law 89/2021, of 3/11/21; Order 230/2018, of 17/08/18, amended by: Order 41/2021, of 22/02/21; Decree-Law 74/2022, of 24/10/22; and Decree-Law 38/2023, of 29/05/23.

Council of Ministers Resolution 56/2018, of 07/05/18; Order 6295/2018, of 29/06/18; Council of Ministers Resolution no. 62/2020, of 14/08/20; and Council of Ministers Resolution 147/2021, of 03/11/21.

Law 31/2014, of 30/05/14

Law 83/2019, of 03/09/19 and Decree-Law 89/2021, of 03/11/21.

Law Proposal 46/XV/1.ª, of 16/11/22 and Law Proposal 71/XV/1.ª, of 14/04/23.

The idea and design of the Integrated Plans was born under these new guidelines of the Third Development Plan. As had already happened in Alvalade, Chelas and Olivais, in these large-scale public developments the urban design of the space would be framed by principles of social and environmental integration and territorial complementarity” (Portal da Habitação, 2022c).