Belgrade has widely spread and deeplyrooted “do it your self” building culture that is mostly a consequence ofsocialist urban planning, which did not allow any form of individual dwellingnor private building initiative.
The spontaneous building culture in Belgrade implies varietyof habits and life styles associated with the use of specific parts of thecity. The islands of river Sava are among suchplaces. Those are green oasis in the heart of the city and favorite spaces forrecreation. Ada Medjica is one of the most popular islands with many floatinghouses, where people of Belgradespend their weekends.
Most of the built structure on Medjicaisland is “do it your self” type of architecture. There is neither fresh waternor regulated waste disposal on the island. Floating houses, distributed oninappropriately short distances float on technically unreliable pontoons madeout of used oil barrels. They are parasites on city power grid and they arepolluting the river and the island’s forest with all kinds of waste.
Their owners in many cases visit themrarely, and because of that, very attractive space remains occupied but unused.Also, there is no coordination amongst community members, and therefore it isimpossible to regulate the pattern of space usage.
We suggest that existing floating houses are replaced with short livedephemeral structures, that are mainly build out of recycled elements which areproduces on the island. The users assemble their own new floating houses on oneof the potential positions out of the elements that are provided by thecommunity center / ”Mothership”.
All elements, beside solar panels andinflatable pontoons have very limited expiration date. The platform and wallpanels are made out of mixture of recycled paper and organic glue, and are 5 or15 cm thick. After they are installed and exposed to moisture, they are useablefor a period of approximately 7 days.
Expiration date of proposed floatinghouse, matches the average time its users spend on the island during a singlevisit (2 – 10 days).
All the things that are needed toassemble the floating house and to live there for a short period of time, areprepared, produced and recycled in the “Mothership”. That is the only permanentbuilding on the island and it consists out of following functional elements:
1. space for gathering and classification of waste
2. space for recycling and production of different kinds of paper elements
3. space for preparation and issuing of capsules with batteries, fresh water(“The Cell”)
4. compost with extraction of biogas
5. food storage
The energy for maintenance of theentire system is provided by 16 water turbines, solar panels and biogasextracted from the biological waste.