Old Buildings, Thriving Neighborhoods, New Climate Solutions (Elizabeth Dunn) - 10.26.11
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Transcript of Old Buildings, Thriving Neighborhoods, New Climate Solutions (Elizabeth Dunn) - 10.26.11
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Old Buildings
Thriving Neighborhoods
New Climate Solutions
Liz Dunn
ULI Fall 2011 Annual Conference
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Leveraging our most sustainable assets
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Old buildings, new approaches, new partners
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Many older buildings perform (or could
perform) better than we think
0
20
40
60
80
100
120
Before
1920
1920 - 19451946 - 1959 1960- 1969 1970 -1979 1980 - 19891990 - 19992000 - 2003
kB
TU
per
sf
Year of Construction
Energy Use in Commercial Buildings
Source: U.S. Energy Information Administration, 2003 Commercial Building Energy Consumption Survey
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Information will help level the playing field
Source: Cliff Majersik, Institute for Market Transformation
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NTHP LIFE CYCLE ASSESSMENT STUDY
End of life
Extraction Transformation
Manufacture
Use Distribution
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0.00E+00
2.00E+01
4.00E+01
6.00E+01
8.00E+01
1.00E+02
1.20E+02
1.40E+02
1.60E+02
0 10 20 30 40 50 60 70 80 90 100 110
Cli
ma
te c
han
ge
(kg C
O2
-eq
/ft2
flo
or
space
/yea
r)
Building lifetime (years)
Rehabilitation & retrofit: Base case
New construction: Advanced
Commercial Building, Chicago Commercial Building, Chicago
Commercial Building, Chicago
Reuse of average performing buildings offers immediate climate change
reductions over efficient, new construction.
The environmental value of reuse
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The ‘new economy’ is happening in old neighborhoods
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Older fine-grained neighborhoods
=
locally owned business
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The economic multiplier effect of locally-
owned business is almost 4x that of chains
www.civiceconimics.com
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The future of office is changing
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A Different Kind of Density
We need to measure density differently
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New solutions are needed for smaller,
older buildings
73% of our existing
commercial buildings are less
than 10,000 square feet
95% of them are less than
50,000 square feet –
representing half of all
commercial floor space
Buildings in Denver’s Historic District.
Photo by Wally Gobetz
US Energy Information Administration, 2003
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OUTCOME BASED ENERGY CODES
Objective: To create an alternate, more flexible,
building energy efficiency code framework for
existing and historic buildings
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Supply Laundry Building, Seattle
DEMONSTRATION PROJECTS
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Measuring Urban Grain in Older
Neighborhoods Metrics and Measures
URBAN GRAIN AND PEDESTRIAN ACTIVITY
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Cover?
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Measuring Urban Grain in Older Neighborhoods Metrics and Measures
Urban grain and pedestrian activity
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ECO-DISTRICTS
AND
COMMUNITY
ENERGY
PLANNING
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CAPITOL HILL BUILDINGS AND ENERGY
INVENTORY
Broadway Light Rail Station TOD Site
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New land use policy to encourage district-focused ‘locavore’ investment
in new development models