Short answer
When designing new residential projects in urban environments, investigate the feasibility of adapting existing underutilized non-residential structures as a primary strategy to reduce environmental impact and resource consumption.
- Field
- Resource Management
- Source
- Resources Conservation and Recycling (2023)
- Method
- Comparative Life Cycle Assessment (LCA)
- Evidence
- Strong effect
Repurposing existing non-residential structures for residential use significantly reduces the environmental impact associated with construction by retaining a substantial portion of the original building's embodied energy and materials. This resource management research insight is drawn from a 2023 study published in Resources Conservation and Recycling. Using Comparative life cycle assessment (lca), researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing new residential projects in urban environments, investigate the feasibility of adapting existing underutilized non-residential structures as a primary strategy to reduce environmental impact and resource consumption.
Adaptive Reuse of Non-Residential Buildings Slashes Embodied Energy by 56% and CO2eq Emissions by up to 48%
Repurposing existing non-residential structures for residential use significantly reduces the environmental impact associated with construction by retaining a substantial portion of the original building's embodied energy and materials.
Resources Conservation and Recycling · 2023
Key Findings
- 01Repurposed buildings avoid approximately 56% of embodied energy compared to new construction.
- 02Adaptive reuse can reduce CO2eq emissions by 34-48%.
- 03A repurposed building uses 72% less material by mass than a new apartment building.
- 04Potential state-wide reductions in California for embodied energy and CO2eq emissions are substantial, ranging from 0.14 to 1.4 billion GJ and 5.0–70 million metric tons, respectively.
Application
Design takeaway
When designing new residential projects in urban environments, investigate the feasibility of adapting existing underutilized non-residential structures as a primary strategy to reduce environmental impact and resource consumption.
How to apply
When evaluating a new residential development project, conduct a comparative analysis of adaptive reuse versus new construction, quantifying the potential savings in embodied energy, greenhouse gas emissions, and material use.
Project actions
- 01When researching adaptive reuse, look for case studies that detail the specific materials and structural elements retained.
- 02Consider the potential challenges (like zoning or structural integrity) that might affect the feasibility of adapting a building.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Provides quantitative data on environmental benefits.
- +Addresses a pressing societal need (housing crisis) with a sustainable solution.
Limitations
The exact energy and emissions savings will vary greatly depending on the specific building being repurposed, its original use, and the proposed residential design. Local regulations and economic factors also play a significant role.
Reliability & validity
The study's validity is supported by its comprehensive LCA methodology and its focus on a large building stock. Reliability is enhanced by considering multiple adaptive reuse scenarios. However, the specific values are contingent on the data inputs and assumptions used in the LCA.
Think critically
While adaptive reuse offers clear environmental benefits, what are the potential design challenges or compromises that might arise when converting a non-residential building into habitable apartments, and how might these impact user experience or long-term building performance?
Design Principles
"Maximize the use of existing built stock before resorting to new construction to minimize embodied energy and carbon emissions."
This approach offers a powerful strategy for sustainable development, particularly in urban areas facing housing shortages and a surplus of underutilized commercial spaces. Designers and developers can leverage adaptive reuse to mitigate the significant environmental footprint of new construction, contributing to resource conservation and climate change mitigation.
What This Means for Your Design
It's much better for the environment to turn old office buildings into apartments than to build new ones from scratch because you save a lot of energy and reduce pollution.
How to use in your project
- 1.Use the percentage savings in embodied energy and CO2eq emissions as quantitative evidence for the environmental benefits of your design choices if your project involves adaptive reuse or compares it to new construction.
Add to My Project
Quick Cite
Paragraph starter
The adaptive reuse of non-residential buildings for residential purposes presents a significant opportunity for environmental impact reduction. Research indicates that such repurposing can avoid approximately 56% of embodied energy and 34-48% of CO2eq emissions compared to constructing new apartment buildings, while also reducing material consumption by 72% by mass. This approach is particularly relevant for addressing urban housing needs sustainably.
Source
Resources Conservation and Recycling
What are the energy and greenhouse gas benefits of repurposing non-residential buildings into apartments?
journal · 2023
View sourceQuestions About This Research
- What does the research say about adaptive reuse of non-residential buildings slashes embodied energy by 56% and co2eq emissions by up to 48%?
- When designing new residential projects in urban environments, investigate the feasibility of adapting existing underutilized non-residential structures as a primary strategy to reduce environmental impact and resource consumption. Evidence: Resources Conservation and Recycling (2023).
- Why does "Adaptive Reuse of Non-Residential Buildings Slashes Embodied Energy by 56% and CO2eq Emissions by up to 48%" matter for design?
- This approach offers a powerful strategy for sustainable development, particularly in urban areas facing housing shortages and a surplus of underutilized commercial spaces. Designers and developers can leverage adaptive reuse to mitigate the significant environmental footprint of new construction, contributing to resource conservation and climate change mitigation.
- How can designers apply this research?
- When designing new residential projects in urban environments, investigate the feasibility of adapting existing underutilized non-residential structures as a primary strategy to reduce environmental impact and resource consumption.
- What were the main findings?
- Repurposed buildings avoid approximately 56% of embodied energy compared to new construction.. Adaptive reuse can reduce CO2eq emissions by 34-48%.. A repurposed building uses 72% less material by mass than a new apartment building.. Potential state-wide reductions in California for embodied energy and CO2eq emissions are substantial, ranging from 0.14 to 1.4 billion GJ and 5.0–70 million metric tons, respectively.
- What research method was used?
- Comparative Life Cycle Assessment (LCA).
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2023 journal from Resources Conservation and Recycling.
- What should I do differently in my next project?
- When evaluating a new residential development project, conduct a comparative analysis of adaptive reuse versus new construction, quantifying the potential savings in embodied energy, greenhouse gas emissions, and material use.
- What are the limitations?
- Technical, financial, and regulatory challenges can hinder the full realization of emissions reductions. The study's findings are specific to California's building stock and regulatory environment.