Urban gardening + Toilets + Floating community = ?

In other words, how to manage human waste in a floating eco-community that is built around the idea of urban gardening.


There is a place in Riga – Lucavsala, where different people are working together towards the idea of sustainable and ecological lifestyle at the core of which is urban gardening. Lucavsala is an island in river Daugava that is affected by seasonal floods which has led to an idea of creating a floating community – houses and gardens on the water. And one of the main challenges in such communities is sewage and waste management in a sustainable and eco-friendly way.

About the challenge provider

The challenge is provided by Egons Bērziņš – a researcher at Riga Technical University, Faculty of Architecture and Urban Planning.

We are looking for

(any other background also welcome)

Architecture & Landscape Architecture



Biomedical Engineering

Material Sciences

Civil Engineering


Industrial Design

Public Policy

Spatial & Urban Planning

& other curious people!