Academicians and professionals in the architecture, engineering, and construction (AEC) field have expressed an increasing interest in sustainability and its application in the development of construction projects, especially with its deemed relationship with lean construction, for the purpose of improving efficiency in the construction processes. Practices framed under the lean philosophy show their potential in reducing environmental, economic, and social impacts during the construction phase, with an increase in the parameters of sustainability in the development of projects.

Cooperation between public and private sector has achieved a remarkable widespread, in the Italian context, over the last two decades. Nevertheless, the increasing difficulty in accessing the capital market and the rising cost of funding sources, both noticeable over the past few years, led to a slowdown of Public–Private Partnership (PPP) initiatives. Meanwhile, the community is expressing new needs to be satisfied, such as the conversion of brownfields, the recovery of housing stock dating back to former times, as well as the refurbishment of public offices or schools.

The Bali Province Technical Guidelines (written in Indonesian) for Implementing Green Buildings in the Context of Clean Energy represent a collaborative effort between the Bali Provincial Government, Global Building Performance Network (GBPN), and support from CORE Udayana. Developed through extensive studies and analysis from November 2021 to June 2022, the guidelines engage stakeholders from the Provincial Government Bali, Professional Expert Team, universities, associations, private sectors, and professionals in building and clean energy.

The Samarinda City Technical Guidelines represent a strategic initiative aligned with the city's development goals, as outlined in Mayor Regulation No. 55 of 2021. These guidelines meticulously consider the potential savings and additional benefits achievable through the implementation of energy and water-efficient measures, aiming to significantly reduce carbon emissions in buildings. Spearheaded by the Samarinda City Government, this effort reflects a commitment to fostering an environmentally friendly and sustainable urban landscape.