With a planet population that is constantly growing, alternative to traditional living spaces are becoming increasingly necessary. The trend is for homes to become smaller and smaller to save space, and implicitly money. The reason: a smaller home is easier to heat and maintain.

With a lot of creativity and thinking outside the rigid boundaries of convention, the notion of a typical "house" suffers an improvement, especially for those looking for more eco-friendly solutions.

Here are 5 suggestions that will surely make you think:

1. Container apartments

The Dutch were the ones who promoted them as housing solutions for students who no longer had places in dormitories. These containers were initially used for transporting goods, then reconditioned and equipped with what was necessary to be habitable. Anyone can use this solution; they are prefabricated, found all over the world and require minimal construction interventions.

2. Tiny houses

There is a real movement in the world of people who prefer to live in these tiny houses. They are usually built from non-polluting materials and the furniture items are extendable to save space. For example, the bed can be transformed into a sofa, the table is foldable, and the doors are sliding.

3. Dwellings in billboards

As unusual as it sounds, they could be just as functional. They are still in the prototype stage, and the idea was conceived by a team of architects from Slovakia as living space for homeless people. They have a triangular shape and would include a kitchen, a living room and a small bathroom. Advertising panels will be mounted on the exterior walls.

4. Yurts

These types of dwellings are specific to Central Asia and are becoming increasingly popular as an alternative housing option because they are easy to build and transport. They are made from a circular wooden frame and covered with a weather-resistant textile material.

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5. Dumpsters transformed into homes

The project belongs to an American who is trying to provide homeless people with a place to shelter. These dwellings are mobile, built from leftover materials and painted in bright colors to draw attention to the need for help that homeless people have.

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