The United Nations Human Settlements Programme, UN-Habitat, is the United Nations agency for human settlements. It is mandated by the UN General Assembly to promote socially and environmentally sustainable towns and cities with the goal of providing adequate shelter for all.

The United Nations Human Settlements Programme (UN-Habitat), established in 1978, is the lead agency within the UN system for coordinating activities in the field of human settlement development. The organization's mandate is outlined in the Vancouver Declaration on Human Settlements, Habitat Agenda, Istanbul Declaration on Human Settlements, the Declaration on Cities and Other Human Settlements in the New Millennium, and Resolution 56/206. UN-Habitat's work is directly related to the United Nations Millennium Declaration, particularly the goals of member States to improve the lives of at least 100 million slum dwellers by the year 2020, Target 11, Millennium Development Goal No. 7, and Target 10 which calls for the reduction by half of the number without sustainable access to safe drinking water.

It also serves as the focal point for monitoring progress on implementation of the Habitat Agenda - the global plan of action adopted at the Second United Nations Conference on Human Settlements (Habitat II), held in Istanbul, Turkey in 1996.

The overall objective of UN-HABITAT is to promote sustainable urbanization. With this objective under the framework of Medium Term Strategic and Institutional Plan (MTSIP) 2008-2013, UN-HABITAT is focusing on five areas of work:

Focus Area 1: Advocacy Monitoring and partnership
Focus Area 2: Participatory urban planning management and governance
Focus Area 3: Pro poor land and housing
Focus Area 4: Environmentally sound basic urban infrastructure and services
Focus Area 5: Strengthen Human settlements Finance system

Habitat Country Programme Document (HCPD) 2011-12 is the programme framework of UN-HABITAT in Nepal. The programme has following focuses:

- Promoting 'shelter for all' with emphasis on urban poor and vulnerable population including slum and squatter, both at policy level and in implementation;
- Promoting water and environmental sanitation, water demand management, WATSAN governance, integrated water resource management and capacity building at various levels.
- Disaster preparedness and recovery, particularly actively involving in CERF activities and shelter cluster including preparing building codes and norms and post disaster recovery support
- Supporting climate change management issues in terms of cities including Cities and Climate Change Initiatives.
- Raising urban agenda through Nepal Urban Forum, National Urban Observatory, and similar collaborative works

Under the programme framework UN-HABITAT has supported landless Koshi flood victims of 2008 with integrated shelter, promoting urban water and sanitation under Water for Asian Cities Programme, initiated full sanitation coverage in five selected districts through Global Sanitation Fund, prepared Nepal Urban Housing Sector Profile Study, etc.

UN-Habitat’s activities has been span to almost 9 peri-urban town in Kathmandu Valley, 35 Municipalities and 15 small towns through Water for Asian Cities Programme and 5 Districts and 5 Municipalities through Global Sanitation Fund Programme. Of the USD 9.7 million spent an almost equal proportion of USD 4.18 million has come from UN-Habitat’s Water for Asian Cities programme and Global Sanitation Fund is going to spent USD 5 Million for over of five years