Get inspired!

17,725 architecture projects

Learn from past Buildner architecture competition participants through our extensive project library, curated over more than 15 years!

Rooftop Garden and Greywater Recycling in CLT Community Living

Author:
Rebecka Carlsson
Rooftop Garden and Greywater Recycling in CLT Community Living

Project in-detail

A rooftop garden integrates with a greywater recycling system in a CLT building designed for communal living, fostering sustainability and connection among residents.
5 key facts about this project
01
Rooftop garden provides fresh produce for communal kitchens.
02
Cross-laminated timber structure reduces carbon emissions.
03
Greywater recycling system supports efficient water usage.
04
Separate private and communal spaces enhance resident interaction.
05
Composting toilets convert waste into usable fertilizer.

The architectural design featured in this project focuses on the idea of biophilia, promoting communal living while ensuring a strong connection with nature. Located in an urban setting, the design encourages residents to engage with each other and their surroundings. It combines private living spaces with communal areas, creating an environment where social interaction and collaboration can flourish.

Site Strategy

The building layout clearly separates private and shared spaces. Private residences occupy the upper tower, providing a quiet retreat for individuals. In contrast, the lower levels include communal facilities like a large kitchen for shared cooking and a daycare center. This arrangement supports daily social activities, allowing residents to connect and build relationships within their community.

Sustainable Practices

Sustainability plays an important role in the design. Stormwater management systems collect rainwater for irrigation, minimizing reliance on external water sources. Greywater recycling systems are also in place, using specially designed gardens to filter water for communal use. Additionally, composting toilets convert waste into fertilizer, highlighting a commitment to resource recycling and environmental stewardship.

Material Application

Cross-Laminated Timber (CLT) is chosen as the primary construction material, offering strong structural support while reducing carbon emissions. The design utilizes temporary greenhouses to provide extra heating during colder months. It also enhances indoor comfort through optimized cross-ventilation, allowing fresh air to circulate effectively.

Ecological Integration

The project addresses urban challenges such as traffic congestion and air pollution, promoting alternative transportation methods like car-sharing. By reducing the need for parking, the design aims to reclaim street space for pedestrians and local wildlife. Vacant lots nearby are envisioned as green spaces or urban farms, contributing further to biodiversity and public health. This integration aids in creating a more vibrant and connected community.

The rooftop garden serves multiple purposes, supplying fresh produce for communal kitchens and providing a habitat for local wildlife. This relationship with nature enhances the daily lives of the residents, reinforcing the biophilic principles that guide the design.

Noticed a mistake?
Highlight the text and click on
Noticed a mistake

MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

`
Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
Denver Affordable Housing Challenge
Denver Affordable Housing Challenge
Affordable Housing Series 19th Edition
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #4
MICROHOME
MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
The Architect’s 
Stair
The Architect’s Stair
Take a step and make a statement! Edition #3
Kinderspace
Kinderspace
Architecture for Children’s Development #3
To view this project in detail,
please log in with your
Architects’ Network Plus account.
Subscription instantly unlocks all the architecture projects plus other member-only benefits:
  • Access the 17,725 Concept Library
  • Professional tools including file transfer, email, portfolio management, and more
Register now
Already a member? Log in

This website uses cookies to improve user experience and gather usage statistics.

More information is available in our Privacy & Cookie policy