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Geothermal Energy and Concrete Integration Define Sustainable Urban Housing

Author:
Timothy Ung
Geothermal Energy and Concrete Integration Define Sustainable Urban Housing

Project in-detail

Harnessing geothermal energy and incorporating a high-efficiency concrete envelope, the design achieves a net-zero energy goal while providing vital affordable housing in an urban context.
5 key facts about this project
01
Utilizes geothermal heat pumps for efficient climate control.
02
Features a high-efficiency concrete envelope for enhanced durability.
03
Incorporates operable curtain walls to optimize natural ventilation.
04
Design includes adaptable floor plans catering to diverse family structures.
05
Integrates public amenities to foster community engagement and interaction.

### Project Overview

The Net Zero Public Housing project located at 225 West 28th Street in New York City aims to provide affordable housing within a dynamic urban context, closely linked to the Fashion Institute of Technology. The initiative addresses the increasing need for affordable housing amidst rising real estate costs, emphasizing sustainability and adaptability in design. The concept incorporates modern building technologies, enabling a comfortable and energy-efficient living environment for future residents.

### Material Resiliency and Efficiencies

The project strategically employs **concrete** for its structural and aesthetic qualities, recognized for durability and low maintenance, thereby aligning with historical design practices in public housing while updating them for modern requirements. Additionally, the building utilizes a **high-efficiency building envelope** and integrates systems such as geothermal heat pumps and solar panels, aiming to achieve net zero energy consumption. Key materials, including rigid insulation, enhance thermal performance, while operable curtain walls facilitate natural ventilation and daylight access, empowering residents to modulate comfort within their living spaces.

### Community Engagement and Flexible Residential Layouts

Public spaces within the development are designed to foster community interaction, featuring a **community bookstore** linked to the Fashion Institute of Technology and a **boutique clothing store** that encourages local engagement. Residential layouts are adaptable, offering one-bedroom and two-bedroom units configured to accommodate varied family structures. These designs prioritize social interaction while maintaining necessary privacy, contributing to a cohesive community atmosphere. Additionally, passive cooling techniques, such as strategically placed balconies, enhance environmental adaptability, improving overall resident comfort and reducing energy usage.

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

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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

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Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
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Chair
The Architect's Chair
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MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
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Kinderspace
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