What question did this study set out to answer?

To analyze patterns, structural characteristics, ownership influences, and space heating energy outcomes associated with building adaptive reuse across a national building stock.

July 5, 2025Energy and BuildingsOpen Access

Building function, ownership, and space heating: Exploring adaptive reuse pathways in Swedish building stock

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Authors

IIIlia IarkovLund University VFVictor Fransson DJDennis JohanssonLund University

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Implication

Observational study reveals space heating energy reductions following adaptive reuse across diverse building types, suggesting viable pathways for urban decarbonisation.

Key Points

To analyze patterns, structural characteristics, ownership influences, and space heating energy outcomes associated with building adaptive reuse across a national building stock.
Conducted a retrospective observational analysis using Energy Performance Certificates (EPCs) from 141,778 buildings issued between 2007 and 2023 in Sweden.
Evaluated functional conversion pathways alongside building characteristics, including floor area (conditioned floor area), construction decade, ownership classification, and measured space heating energy use.
Assessed statistical significance of heating energy changes across specific functional conversion pairs using sign tests.
Space heating energy use decreased in 82% of converted buildings, with an average reduction of 9.6 kWh/m²·year compared to 9.3 kWh/m²·year in non-converted buildings, and 54% of converted properties outperformed non-converted controls.
Office-to-residential conversions represented the most prevalent pathway and achieved mean heating savings of up to 19 kWh/m²·year, although sign tests revealed statistically significant reductions across only a subset of conversion pairs.
Conversions occurred most frequently in mid-sized properties (1,000–5,000 m²) built between the 1930s and 1970s, with corporate and public entities initiating the vast majority of projects.

Cite This Study

Iarkov et al. (2025) studied this question.

synapsesocial.com/papers/6a10255e92676d5461fd9df1 https://doi.org/10.1016/j.enbuild.2025.116108

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Implication

Observational study reveals space heating energy reductions following adaptive reuse across diverse building types, suggesting viable pathways for urban decarbonisation.

Building function, ownership, and space heating: Exploring adaptive reuse pathways in Swedish building stock

Discussion

Member takes

Implication

Key Points

Cite This Study

Building function, ownership, and space heating: Exploring adaptive reuse pathways in Swedish building stock

Discussion

Member takes

Implication

Key Points

Cite This Study

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