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Rooftop Terrace and Composite Toilet in a Timber Micro Home

Author:
Georgina Esi Takyi- Annan
Rooftop Terrace and Composite Toilet in a Timber Micro Home
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With a rooftop terrace offering views of surrounding orange trees and a washroom equipped with a composting toilet, this micro home integrates sustainable living with modern functionality in a tropical environment.
5 key facts about this project
01
Rooftop terrace offers direct views of an adjacent orange orchard.
02
Multi-purpose living area includes an adjustable sofa that serves as storage.
03
Composting toilet repurposes waste as fertilizer for the surrounding plants.
04
Constructed using locally sourced timber to support the community.
05
Designed to adapt to both indoor and outdoor living in a tropical climate.

"Home in the Orchard" is located in Okagyakrom, a village in the Oti region of Ghana. Surrounded by orange and palm trees, the design seeks to create a small, sustainable home that connects the inhabitants to their natural environment. The focus is on multifunctionality and enhancing the outdoor experience while considering the local climate, which features a rainy and dry season.

Design Concept

The layout of the home includes several essential spaces: a multi-purpose living area, kitchen, washroom, bedroom, study area, closet, storage, and an outdoor rooftop sitting area. This arrangement maximizes the use of space while providing the necessary functions for daily life. Each area is designed to be flexible and adaptable, allowing for various activities that occupants might engage in throughout the day.

Materials and Construction

Timber sourced from the local area serves as the primary building material. Using local resources not only supports the community but also aligns with the aim of sustainability. By minimizing transportation needs, the design reduces both costs and the environmental impact of construction, making it a responsible choice in terms of resource management.

Sustainable Features

One of the key aspects of the design is its focus on sustainability. The washroom includes a composite toilet system that can break down waste and transform it into fertilizer for the surrounding planting beds. This self-sufficient approach encourages a cycle of waste reuse, benefiting both the home and the orchard. It emphasizes a practical way to live in harmony with nature.

Seamless Outdoor Integration

A rooftop terrace forms an important part of the living space, providing a platform for enjoying views of the orchard. This outdoor area encourages social interaction and relaxation, offering a place to disconnect from daily routines. By incorporating a connection to the landscape, it enhances the overall living experience and fosters a strong relationship between the inhabitants and their environment.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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