Short answer
When assessing building retrofits, move beyond purely financial and environmental metrics to include user comfort and broader social impacts for a more comprehensive and human-centered design approach.
- Field
- Sustainability
- Source
- Buildings (2025)
- Method
- Systematic Literature Review
- Sample
- 50 studies
- Evidence
- Strong effect
While Life Cycle Cost Analysis (LCCA) is the dominant method for evaluating building retrofits, often combined with Life Cycle Assessment (LCA), there's a significant underrepresentation of social and comfort indicators in these assessments. This sustainability research insight is drawn from a 2025 study published in Buildings. Using Systematic literature review with 50 studies, researchers explored how this design variable affects real-world outcomes. The key design takeaway: When assessing building retrofits, move beyond purely financial and environmental metrics to include user comfort and broader social impacts for a more comprehensive and human-centered design approach.
Financial and Environmental Retrofit Assessments Prioritize Life Cycle Cost Analysis, Neglecting Social Impact
While Life Cycle Cost Analysis (LCCA) is the dominant method for evaluating building retrofits, often combined with Life Cycle Assessment (LCA), there's a significant underrepresentation of social and comfort indicators in these assessments.
Buildings · 2025
Key Findings
- 01Life Cycle Cost Analysis (LCCA) is the most frequently used method (over 60% of studies).
- 02LCCA is often combined with Life Cycle Assessment (LCA), especially for long time horizons.
- 03Cost–Benefit Analysis (CBA) is used in fewer than 25% of cases.
- 04Comfort and social impact indicators are underrepresented, with thermal comfort in only 12% of studies and no formal use of Social-LCA or SROI.
- 05Geographic imbalance exists, with over 50% of studies based in Europe and an absence of African case studies.
Application
Design takeaway
When assessing building retrofits, move beyond purely financial and environmental metrics to include user comfort and broader social impacts for a more comprehensive and human-centered design approach.
How to apply
When proposing or evaluating building retrofit solutions, ensure that assessment methodologies include metrics for occupant comfort, well-being, and community impact alongside cost and energy savings.
Project actions
- 01When choosing a design project, consider one that involves retrofitting an existing space.
- 02When evaluating design options, ensure you are considering multiple criteria beyond just cost and performance, such as user experience and social impact.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Comprehensive systematic review methodology.
- +Focus on a critical and often overlooked aspect of building retrofits (social impact).
Limitations
It can be challenging to find reliable data for social impact assessments, and quantifying subjective factors like comfort can be difficult.
Reliability & validity
The reliability of the review is enhanced by its systematic approach, using predefined criteria across multiple databases. Validity is supported by the focus on peer-reviewed literature, though potential publication bias could be a limitation.
Think critically
Given the strong emphasis on financial and environmental metrics in building retrofit assessments, what are the potential long-term consequences of neglecting social and comfort factors in design decisions?
Design Principles
"Holistic design assessment requires the integration of financial, environmental, and social performance indicators."
Designers and engineers often focus on quantifiable financial and environmental metrics for retrofits, overlooking crucial user experience and societal benefits. Integrating social impact assessments can lead to more holistic and ultimately more successful building designs that benefit both occupants and the wider community.
What This Means for Your Design
When you're trying to figure out the best way to improve an old building's energy use, most people look at how much money it will save and how much energy it will use. This research shows that while those things are important, we often forget to think about how comfortable people will be living or working there, or how the changes might affect the local community.
How to use in your project
- 1.Use this research to justify the inclusion of social and comfort metrics in your design evaluation, even if they are harder to quantify.
- 2.Reference the dominance of LCCA and LCA to explain why your project might be exploring less common but equally important assessment methods.
Add to My Project
Quick Cite
Paragraph starter
This design project acknowledges the prevalent use of Life Cycle Cost Analysis (LCCA) and Life Cycle Assessment (LCA) in evaluating building retrofits, as highlighted by Papangelopoulou et al. (2025). However, recognizing the underrepresentation of social and comfort indicators in such assessments, this project will also incorporate metrics related to user well-being and community impact to ensure a more holistic evaluation of design solutions.
Source
Buildings
Assessment Methods for Building Energy Retrofits with Emphasis on Financial Evaluation: A Systematic Literature Review
journal · 2025
View sourceQuestions About This Research
- What does the research say about financial and environmental retrofit assessments prioritize life cycle cost analysis, neglecting social impact?
- When assessing building retrofits, move beyond purely financial and environmental metrics to include user comfort and broader social impacts for a more comprehensive and human-centered design approach. Evidence: Buildings (2025).
- Why does "Financial and Environmental Retrofit Assessments Prioritize Life Cycle Cost Analysis, Neglecting Social Impact" matter for design?
- Designers and engineers often focus on quantifiable financial and environmental metrics for retrofits, overlooking crucial user experience and societal benefits. Integrating social impact assessments can lead to more holistic and ultimately more successful building designs that benefit both occupants and the wider community.
- How can designers apply this research?
- When assessing building retrofits, move beyond purely financial and environmental metrics to include user comfort and broader social impacts for a more comprehensive and human-centered design approach.
- What were the main findings?
- Life Cycle Cost Analysis (LCCA) is the most frequently used method (over 60% of studies).. LCCA is often combined with Life Cycle Assessment (LCA), especially for long time horizons.. Cost–Benefit Analysis (CBA) is used in fewer than 25% of cases.. Comfort and social impact indicators are underrepresented, with thermal comfort in only 12% of studies and no formal use of Social-LCA or SROI.
- What research method was used?
- Systematic Literature Review with 50 studies.
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2025 journal from Buildings.
- What should I do differently in my next project?
- When proposing or evaluating building retrofit solutions, ensure that assessment methodologies include metrics for occupant comfort, well-being, and community impact alongside cost and energy savings.
- What are the limitations?
- The review identified a lack of studies from certain geographic regions (e.g., Africa) and an inconsistent treatment of discount rates in financial analyses.