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Thermal Limestone Mass and Rainwater Harvesting Systems in Sustainable Residential Design

Author:
Joshua Thomas-everly Woods
Thermal Limestone Mass and Rainwater Harvesting Systems in Sustainable Residential Design

Project in-detail

Incorporating thermal limestone mass and rainwater harvesting systems, the design exemplifies sustainable living in a self-sufficient residential context.
5 key facts about this project
01
Incorporates large limestone blocks for thermal mass to stabilize indoor temperatures.
02
Utilizes a thermoelectric satellite dish for efficient energy capture and heating.
03
Features an extensive rainwater catchment system for sustainable water use.
04
Integrates a greenhouse area promoting biodiversity and indoor gardening.
05
Designed with an earth berm for natural insulation and climate control.

The Limestone Earthship Project represents a modern approach to sustainable architecture through the integration of natural materials and renewable energy technologies. Located in Taos, New Mexico, this residential design embodies ecological principles, aiming to create a self-sustaining environment. The project leverages local limestone, passive solar energy, and rainwater harvesting systems, providing a framework for sustainable living.

The primary function of the Limestone Earthship is to serve as a self-sufficient home that minimizes environmental impact. The design incorporates thermal mass walls made of limestone, which regulate indoor temperatures by absorbing and releasing heat. This feature is pivotal in ensuring comfort within the fluctuating climate of the region. The layout includes a central Great Room that connects various functional areas such as the kitchen, bedrooms, and storage spaces, thus promoting a cohesive living environment.

Unique attributes of the Limestone Earthship stem from its emphasis on self-sufficiency. The use of limestone not only offers thermal and structural benefits but also links the home to the local geology, reinforcing a sense of place. Additionally, solar panels are integrated into the design, providing an array of renewable energy that allows the home to function off-grid. The incorporation of a thermoelectric satellite dish further exemplifies the project's innovative approach to energy utilization.

The design also prioritizes water sustainability through extensive rainwater catchment systems. These systems collect and store rainwater for domestic use, significantly reducing reliance on external water sources. Moreover, green spaces within the home allow for indoor gardening, enhancing air quality and promoting biodiversity.

Architecturally, the project balances modern aesthetics with practical solutions, using select brick finishes alongside rougher limestone textures. The large windows facilitate ample natural light, creating a seamless connection between indoor spaces and the surrounding landscape. This interplay of light and materiality is essential in reinforcing the ecological ethos of the design.

For a more in-depth understanding of the Limestone Earthship Project, the reader is encouraged to explore the architectural plans, sections, and designs presented. This will provide valuable insights into the architectural ideas and unique approaches that define this sustainable living space.

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The Mujassam Watan Urban Sculpture Challenge invites architects and designers to create iconic public sculptures for one of two sites in Saudi Arabia: Abu Hadriyah Road or the Tharwa Sea Front in Al-Khobar. Proposals should reflect Saudi identity, culture, and future aspirations.

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The Mujassam Watan Urban Sculpture Challenge is an international architecture and design competition inviting creatives to shape the future of Saudi Arabia’s public spaces. With a total prize fund of €50,000, the competition calls for sculptural proposals that merge cultural symbolism with innovative design, offering participants a chance to see their concepts brought to life in a rapidly transforming national context.

Organised by Buildner in partnership with the Mujassam Watan Initiative, the challenge focuses on two prominent locations: Abu Hadriyah Road, a major highway and gateway into the Eastern Province, and the Tharwa Sea Front in Al-Khobar, a pedestrian-focused waterfront district. Designers must select one site and develop a sculpture that engages with its surroundings—whether addressing the fast-paced dynamism of a transit corridor or creating moments of interaction along a coastal promenade.

Proposals should be bold, site-specific, and rooted in narrative—drawing on themes such as heritage, national identity, transformation, and dialogue. Environmental responsiveness, material durability, and feasibility are strongly encouraged, as winning projects may be selected for actual construction.

Each submission must include four A2 landscape presentation boards, a cover image, and a written project description. The competition is open to professionals and students alike, working individually or in teams of up to four people. No professional license is required.

Registration is open until July 24, 2025, with final submissions due by August 27, 2025. Winners will be announced on October 1, 2025.

Mujassam Watan Urban Sculpture Challenge

Design iconic urban sculptures for the prestigious Mujassam Watan competition and compete for 50,000 €

50,000 € PRIZE project COMPETITION
Prize 50,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 24 July 2025

Enter an open architecture
competition now

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