Health, Wellbeing & Productivity in Offices: The Next Chapter for Green Building (Executive Summary)

Overview

This is the two-page executive summary of Health, Wellbeing & Productivity in Offices: The Next Chapter for Green Building, released by the World Green Building Council in the fall of 2014. The report set out to answer a question the green-building movement had circled for years: can the human benefits of a well-designed building be measured reliably enough to prove the return on investment? The summary lays out the argument, the evidence areas reviewed, and a measurement framework that owners and occupiers can apply in their own buildings.

Key Findings

• Salaries and benefits typically make up about 90% of a business's operating costs, so even a small gain in employee health or output is worth far more than any energy or maintenance saving a building can deliver.
• Expert teams reviewed indoor air quality, thermal comfort, daylighting, acoustics, interior layout, views, biophilia, location and amenities. Their consensus: the research is overwhelming that office design has a material effect on how occupants feel and perform.
• That evidence is not yet reaching design and financing decisions at scale, which is why the council chose to restate it plainly for real estate executives.
• The report proposes a three-part metrics framework: financial outcomes (absence rates, staff turnover, medical complaints), perceptual data (how workers rate their environment), and physical measurements of the building itself, with the relationships among the three tracked over time.
• Many organizations already hold most of this data and could mine it for quick wins affecting their two largest expenses, people and places.
• Strategies that improve health and productivity generally reinforce energy and resource efficiency; maximizing daylight, giving users control, and designing in biodiversity are named as examples of this "virtuous circle." The summary also concedes trade-offs, particularly in hot, humid climates.

Why It Matters for Daylighting

Daylighting is one of the handful of design factors the report singles out, and the 90% figure reframes how a skylight project should be evaluated. In a distribution center or manufacturing plant, the payroll under the roof dwarfs the lighting bill, so a toplighting system that helps people stay alert, make fewer errors and show up more consistently does not have to justify itself on kilowatt-hours alone. The report's caution about glare and overheating in hot climates is equally relevant: diffusing prismatic skylights that spread light evenly without hot spots are the practical answer to that trade-off.

The measurement framework is also directly usable by industrial owners. Absenteeism, turnover, injury and error rates are already tracked in most warehouses; pairing them with light-level measurements before and after a daylighting retrofit is exactly the kind of in-house business case the council is asking for.

About the Source

The World Green Building Council is the global network of national Green Building Councils and one of the most widely cited voices on the business case for sustainable buildings. The executive summary is two pages; the full report, published in 2014 with a lead research team drawn from member councils, runs considerably longer and is available from the council's website. Read the full report at worldgbc.org for the complete evidence review and the metrics toolkit.