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Cross-Laminated Timber Units Elevating Urban Housing Solutions

Authors:
Jiri Kugl, Stepan Kotous, Natalie Novakova
Cross-Laminated Timber Units Elevating Urban Housing Solutions
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Elevating urban density through the strategic addition of cross-laminated timber modules atop existing panel housing, the initiative offers a sustainable solution to affordable living in Paris.
5 key facts about this project
01
Cross-laminated timber modules allow for rapid assembly and sustainable construction.
02
The design expands on existing panel houses, maximizing urban land use.
03
Integration with existing infrastructure fosters community connectivity.
04
Emphasis on minimalist aesthetics ensures functional living spaces.
05
Proximity to essential amenities enhances overall resident quality of life.

The *PARIS +1* project focuses on creating affordable housing in the urban area of Paris. It addresses the growing demand for living spaces while questioning what affordable really means in today’s context. The design introduces a modular housing concept, allowing new living units to be added to existing structures, thereby maximizing land use and fostering community interaction.

Modularity as a Concept

The heart of the design is its modular approach. New housing units can be placed on top of existing panel houses, which helps to make the most of limited space. This method reduces the need for new land while preserving the urban landscape. The modular nature provides flexibility, enabling easy adjustments to meet the needs of different residents. Living spaces feel practical and accessible, promoting comfort and connection.

Focus on Sustainable Reuse

Sustainability plays an important role in the project. By reusing existing buildings and infrastructure, it minimizes the environmental impact that often comes with new construction. This thoughtful reuse helps maintain the character of neighborhoods. Additionally, it connects people with essential amenities, making it easier for residents to engage with their community while enjoying the benefits of urban living.

Material Considerations

KLH cross-laminated timber is included in the design due to its efficiency and sustainability. This material is lightweight and strong, enabling quick construction and lasting durability. The use of cross-laminated timber aligns with modern practices that aim for environmentally responsible architecture, contributing to a more sustainable future for urban development.

Design Potential

The *PARIS +1* design holds the potential to reshape many panel houses across the city. The idea of adding modular units to existing buildings offers a practical solution to address the housing shortage. Each module is carefully crafted, aiming for a minimalist style that fits well with surrounding architecture. These living spaces are designed to be functional, ensuring that they meet the everyday needs of residents. The approach emphasizes a balance between enhancing urban density and preserving community character.

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Enter an open architecture
competition now

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
Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025

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

Open architecture competitions

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  • Project competitions first
    Selected winning projects have the potential to be constructed
  • Ideas competitions
    Experimental competitions with the focus on pushing the boundaries of creativity
Denver Affordable Housing Challenge

AIA (American Institute of Architects) invites you to design affordable housing in Denver

Affordable Housing Series 19th Edition ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Final registration deadline 18 September 2025

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

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Prize 100,000 € + Potential realisation
Eligibility Open to all
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