As designers, we have a responsibility to investigate and
present the social costs and benefits of our designs to all key stakeholders.
Whether its building safe
routes to schools , taking a project to Net Zero, or evaluating the number
of separate HVAC zones in an individual project, our clients, building
occupants and the general public should be aware of the associated productivity
and health implications at the individual/local level, as well as what the
larger social/cultural and economic ramifications are.
Business operating costs (the “people” costs) range anywhere
from 10 to 100+ times building operations costs, depending on the number and
salary level of the employees and type of facility.[i]
[ii]
Because of this, even small percentage improvements in productivity and health
can dwarf the associated decreases in operational costs obtained from
sustainable built environment solutions, and this can drastically change the
results of any life cycle cost analysis.
For example, M.E. GROUP’s rectrocommissioning efforts at the
Conrad Duberstein U.S. Courthouse and Post Office in Brooklyn, NY, resulted in 37
energy conservation measures (ECMs) that were estimated to cost $9,167,000 to
implement and save $872,000/year in building operational costs.[iii]
Using contextually gathered data from surveys, interviews/observations, and
space condition measurements to strategically apply previous research on
productivity relative to specific building conditions, such as lighting,
acoustics, IAQ, etc., these same ECMs were conservatively estimated to result
in $3,570,000/year in productivity improvements. This was 4.1 times the
estimated operational savings while only considered some of the productivity benefits and excluding all of the potential savings related to
health improvements. Simple payback using the operational savings only was 10.5
years. If we include productivity the length of time drops to 2.1 years. Yet we
rarely consider quantified productivity and health impacts as part of the
master planning, design, retrocommissioning or post occupancy evaluation
process. For additional examples, see the following blog posts: How
a Lack of Space/Flexibility Can Impact Teacher Productivity/Performance, Culture
and Thermal Comfort and Study:
Safe Routes to School Investments Save Millions and Improve Quality of Life.
Moving to a larger scale, data from the U.S. Energy
Information Administration indicates that approximately 40.6% of U.S. CO2
emissions generated annually is produced by buildings compared to
transportation and industry.[iv]
Using Johnson and Hope’s social cost of carbon (SCC) estimate[v]
(also discussed in two of Laurie Johnson’s blog posts here
and here,
as well as David Robert’s blog here),
a reduction in annual CO2 emissions of only 5% from the building
sector would translate into $11.66 billion in avoided future U.S. economic
damages, based on 2012 emissions data[vi]
and Johnson and Hope’s 2010 SCC estimate using the 1.5% discount rate. Limiting
this to the commercial sector only, that number would be $5.48 billion. That’s billions
of dollars of avoided agricultural productivity decreases, health care cost
increases, increased flood damages, etc. But as with productivity and health,
we rarely take greenhouse gas (GHG) impacts into account as part of the master
planning, design, retrocommissioning or post occupancy evaluation process.
[i]
CABE/BCO. 2005. The Impact of Office
Design on Business Performance. Commission for Architecture and the Built
Environment and the British Council for Offices, London, UK.
[ii]
Fisk, W. J. 2002. How IEQ Affects Health,
Productivity. ASHRAE Journal 44(5):56-58.
[iii]
Harmon, M. 2011. “The Commissioning Agent as Anthropologist – Part 1.” The Checklist: The Quarterly Newsletter of
the Building Commissioning Association. (second quarter): 8-10.
[iv] ©2013 2030, Inc. / Architecture 2030. All
Rights Reserved. Data Source: U.S. Energy Information Administration (2012).
[v] Johnson,
L. T. and C. Hope. 2012. The social cost of carbon in U.S. regulatory impact
analyses: an introduction and critique. Journal
of Environmental Studies and Sciences. September, 2012. http://www.eenews.net/assets/2012/09/17/document_gw_05.pdf.
[vi]
EPA 430-R-14-003: Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990 –
2012: http://www.epa.gov/climatechange/ghgemissions/usinventoryreport.html.
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