Ho Chi Minh City, Vietnam
City population: 8993082
Duration: unknown – 2014
Implementation status: Completed
Scale: Sub-microscale: Street scale (including buildings)
Project area: 226 m2
Type of area: Residential, Building
Last updated: March 2023

Asia is one of the fastest economic growing regions and so are many cities on the Asian continent. Economic growth brings forward many challenges including intensive urban development, loss of natural features, increased urbanization, and high levels of air pollution, just to name a few. One of these cities is Ho Chi Minh where it was assessed that only 0,25% of its area is covered with vegetation, and in addition to this, there is traffic congestion and air pollution (3). In an effort to rectify some of these transgressions, a private initiative developed a house called the House of Trees, located in Tan Binh district, one of the most densely populated residential areas in Ho Chi Minh City, where many small houses are crowded together (2). The green features of the house include five roofs that function as gardens thanks to a layer of earth substratum, from which tall tropical trees grow (3). The aim of the project is to bring green space back into the city, accommodating high-density dwellings with big tropical trees. Five concrete boxes are designed as "pots" to plant trees on their tops. With a thick soil layer, these pots also function as storm-water basins for detention and retention, hence contributing to reducing the risk of flooding in the city. The project has been conducted by Vo Trong Nghia Architects, a leading Vietnamese firm in building green architecture in urban Vietnam. (1)

House for Trees - Ho Chi Minh City, Vietnam
https://arquitecturaviva.com/works/casa-de-los-arboles-ho-chi-minh-10

Overview

Nature-based solution

  • Grey infrastructure featuring greens
  • House gardens
  • Nature on buildings (external)
  • Green roofs
  • Green walls or facades

Key challenges

  • Environmental quality
  • Air quality improvement
  • Noise reduction
  • Green space, habitats and biodiversity (SDG 15)
  • Green space creation and/or management
  • Water management (SDG 6)
  • Flood protection
  • Health and well-being (SDG 3)
  • Creation of opportunities for recreation

Focus

Creation of new green areas

Project objectives

The overall aim of this project is to bring green space back into the city, accommodating high-density dwellings with big tropical trees to create a green and relaxing space for residents. Furthermore, the following goals were defined: 1. To design around the local climate and enable occupants to escape the street noise and heat to enjoy the shade and greenery inside. (5) 2. To address several issues, including rapid urbanization, air pollution, lack of green areas, disconnection between the inhabitants and the ecosystem, and flooding challenges in Ho Chi Minh City. (1,2,3)

Implementation activities

The intervention was developed under a private initiative in 2014. Local and natural materials were chosen to reduce the home's carbon footprint and to keep costs down. (2) - 5 boxes are positioned to create a central courtyard and small gardens in between. - The rooftop is made of banyan trees because of the above-ground roots. The roofs are also designed to retain stormwater in order to prevent flooding, with soil more than 1.5 metres deep. - The exterior walls are made of in-situ concrete with bamboo formwork to reduce the temperature inside the house. - The courtyard and gardens, shaded by trees above, become part of the ground floor living space, which blurs the border between inside and outside to a tropical lifestyle that co-exists with nature. (1, 2)

Main beneficiaries

  • Citizens or community groups

Governance

Management set-up

  • Led by non-government actors

Type of initiating organisation

  • Private sector/corporate actor/company

Participatory approaches/ community involvement

  • Citizen monitoring and review

Details on the roles of the organisations involved in the project

This is a private-owned house, designed by a leading green architecture firm - Vo Trong Nghia. Funds were provided by the private owner and implementation was coordinated by the architecture firm. (1)

Project implemented in response to ...

... an EU policy or strategy? No
... a national policy or strategy? Unknown
... a local policy or strategy? Unknown

Financing

Total cost

€100,000 - €500,000

Source(s) of funding

  • Private funding by citizens

Type of funding

  • Direct funding (grants, subsidies, or self-financed projects by private entities)

Non-financial contribution

No

Impacts and Monitoring

Environmental impacts

  • Climate change
  • Lowered local temperature
  • Environmental quality
  • Reduced noise exposure

Economic impacts

  • Unknown

Socio-cultural impacts

  • Unknown

Type of reported impacts

Expected impacts

Presence of formal monitoring system

Unknown

Presence of indicators used in reporting

No evidence in public records

Presence of monitoring/ evaluation reports

No evidence in public records

Availability of a web-based monitoring tool

No evidence in public records

References

House of trees
https://www.dezeen.com/2014/06/19/house-for-trees-vietnam-vo-trong-nghia-architects/
House of trees
https://www.dezeen.com/2014/06/19/house-for-trees-vietnam-vo-trong-nghia-architects/
House of trees
https://www.dezeen.com/2014/06/19/house-for-trees-vietnam-vo-trong-nghia-architects/
Information about this nature-based solution was collected as part of the "NBS 2022" UNA Asian extension project funded by the Asia-Europe Foundation.