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Spiral Structure of Timber and Steel Enhances Community Engagement in Prairie Landscape

Spiral Structure of Timber and Steel Enhances Community Engagement in Prairie Landscape
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A spiraling observation tower constructed with timber and steel invites visitors to engage with the surrounding prairie landscape while providing educational and recreational opportunities for the community.
5 key facts about this project
01
Constructed with locally sourced timber for reduced environmental impact.
02
Features hexagonal platforms that provide diverse viewpoints of the landscape.
03
Incorporates ADA-compliant access for inclusive community use.
04
Utilizes steel outriggers for enhanced structural stability while minimizing visual bulk.
05
Integrates educational spaces that promote ecological awareness and local history.

## Project Overview
The Prairie Helix is an architectural design submitted for the Legendary Highway 14 Tower Design Competition in De Smet, South Dakota. The project aims to create an observation tower that enhances visitors' connections to the surrounding landscape and promotes community engagement. The design reflects regional characteristics while providing a platform for community interaction and individual experience.

## Spatial Strategy
The conceptual framework of the Prairie Helix is centered on observation, orientation, and community interaction. The tower's helix form encourages a gradual ascent, creating layered views of the local landscape, including the city, Silver Lake, and surrounding homesteads. Each level of the structure is tailored to facilitate engagement with the environment, incorporating viewing areas, play spaces, and rest zones. This design not only fosters individual exploration but also serves as a gathering point for educational activities focused on local ecology and history.

## Materiality and Construction
The architectural composition features overlapping hexagonal platforms that ascend, reflecting both stability and the organic shapes of the prairie landscape. Selected materials include:

- **Wood (12x12 columns)**: Offers an organic quality that links to local craftsmanship and the environment.
- **Steel outriggers**: Provide structural integrity against environmental forces.
- **Wood plank decking**: Ensures comfort and safety for users while maintaining aesthetic coherence.
- **Steel wire mesh railings**: Allow for unobstructed views while ensuring visitor safety.

The tower is designed for universal accessibility, with the first level compliant with ADA standards, promoting inclusivity. An external boardwalk harmonizes with the landscape, enhancing user interaction with the surroundings. Dynamic, rotating platforms offer varied vistas as visitors ascend, encouraging curiosity and exploration throughout the tower.

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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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