The Post-Pandemic Hospital: A Systematic Review of Architectural and Spatial Intervention Literature (2020–2026)

Abstract

The COVID-19 pandemic exposed profound structural vulnerabilities in hospital architecture globally, overwhelming fixed-capacity intensive care units, collapsing infection separation systems, and demanding spatial adaptations for which the built environment was fundamentally unprepared. In the years since the pandemic's onset, a substantial body of peer-reviewed literature has emerged documenting architectural and spatial responses to this unprecedented challenge, yet it remains fragmented across disciplines and geographies, without the systematic synthesis required to guide evidence-based practice and policy. This paper aims to conduct a PRISMA 2020-guided systematic review of all peer-reviewed architectural and spatial intervention literature published between January 2020 and April 2026, addressing pandemic-responsive hospital design. Three specific objectives guide the review: to identify, screen, and categorize all eligible studies using a novel three-tier taxonomy, Ephemeral Adaptability, Embedded Flexibility, and Systemic Resilience; to assess the methodological quality of evidence in each taxonomic tier, distinguishing robust comparative evidence from anecdotal case reports; and to extract actionable design principles and identify critical research gaps across all three tiers. Following PRISMA 2020 protocol, 4,312 records were identified; 187 studies met full inclusion criteria. Results reveal a striking evidence-volume inversion: Ephemeral Adaptability dominates published volume (89 studies, 47.6%) but carries the weakest evidence base (7.9% high-quality studies). Embedded Flexibility shows a substantially stronger evidence base (36.6% high quality), particularly for single-room design, universal bay standards, and convertible ICU configurations. Systemic Resilience studies, though fewest in number (44 studies), carry the highest proportion of robust evidence (47.7%) and the most significant long-term policy implications. The paper recommends that national healthcare facility design guidelines mandate embedded flexibility standards in all new acute hospital construction; It concludes that the architecture profession must transition decisively from reactive emergency documentation to proactive, evidence-driven design standards if the built environment is to contribute meaningfully to the next pandemic response.