Page 57 - Corvallis, OR Historic Preservation Plan

Historic Preservation Plan
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Distribution of Corvallis Buildings by Age (1811-2015)
Distribution of Corvallis Buildings by Age (1811-2015)
Distribution of Residential Structures by Age
Distribution of Residential Structures by Age
1880-1900
1811-1879
2007-2015
33
2007-2015 480 1880-1900 1811-1879 3
h 1930-1945
33
3
480 1901-1929 1901-1929
897
897
539
1930-1945
539
1451
1946-1965
1451 1946-1965
1981-2006
1981-2006 4060
4060
1966-1980 Figure 14 (left): Approximately 30% of the
1966-1980 2048
2048 City’s residential structures are greater than
50 years old. This chart illustrates the range
of ages of the city’s residential structures,
Residential Structures with a large amount of the structures being
Residential Structures Number Number built after 1980.
Ratio (Per Year) Percentage
Periods
Ratio (Per Year) Percentage
Periods 1811-1879 Number Number 3 0.04
0.04
1811-1879 1880-1900 3 33 0.032% 1.65 Figure 15 (below): Approximately 32%
1880-1900 1901-1929 33 897 0.347% 32.04 of the city’s non-residential structures
1.65
1901-1929 1930-1945 897 539 9.431% 35.93 are greater than 50 years old. The chart
32.04
1930-1945 1946-1965 539 1451 5.667% 76.37
35.93
illustrates the range of dates within which
1946-1965 1966-1980 1451 2048 15.256% 146.29
76.37
the city’s non-residential structures were
146.29
1966-1980 1981-2006 2048 4060 21.533% 162.40
built. A large amount of non-residential
1981-2006 2007-2015 4060 480 42.687% 60.00 19
162.40
structures were also built after 1980.

60.00
2007-2015 480 5.048% 19

Distribution of Non-Residential Structures by Age
Distribution of Non-Residential Structures by Age
1811-1879 1880-1900
I 172 1930-1945
1811-1879 2 1880-1900 27
2 27
1901-1929
1901-1929
2007-2015 49
2007-2015 230 172 1930-1945
49
230
1946-1965
1946-1965 209
1981-2006 209
1981-2006 439
439
1966-1980
1966-1980 284
284
Non-Residential Structures
Non-Residential Structures Number Number Ratio (Per Year)
Percentage
Periods
Percentage
Periods 1811-1879 Number Number Ratio (Per Year) 0.142%
2
0.03
1811-1879 1880-1900 2 27 0.03 1.912%
1.35
1880-1900 1901-1929 27 172 1.35 12.181%
6.14
1901-1929 1930-1945 172 49 6.14 3.470%
3.27
1930-1945 1946-1965 49 209 3.27 14.802%
11.00
1946-1965 1966-1980 209 284 11.00 20.113%
20.29
1966-1980 1981-2006 284 439 20.29 31.091%
17.56
1981-2006 2007-2015 439 230 17.56 16.289%
28.75
2007-2015 230 28.75

General Observations about Residential and Commercial Building Age Distribution
General Observations about Residential and Commercial Building Age Distribution
Early Properties May Have a High Level of Significance
Final: November 15, 2017
Early Properties May Have a High Level of Significance 51
65 structures survive from the Early Growth (1850-1879) and Railroad (1880-1899) periods of
65 structures survive from the Early Growth (1850-1879) and Railroad (1880-1899) periods of
Corvallis development.
Corvallis development.
About One-third of Existing Properties Have Structures Over 50 Years Old