2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 75 Figures 145-147. The permit data in Figure 112 is shown graphically in this charts. 1 0 4 1 0 5 0 7 16 14 14 15 17 6 9 14 10 14 9 6 3 8 12 9 13 4 5 5 0 2 4 6 8 10 12 14 16 18 Single-Family House Permits in the City of Clayton (1980-2023) 6 15 16 32 4 34 6 16 10 2 2 40 0 29 21 58 30 34 39 0 22 110 27 6 123 32 86 44 0 0 0 0 0 0 0 479 121 0 0 18 0 0 237 0 0 100 200 300 400 500 600 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Multi-Family House Permits in the City of Clayton (1980-2023) 8 13 490 133 9 6 31 15 4 242 5 49 61 65 79 94 93 73 75 96 56 40 7 3 6 11 6 6 4 4 5 4 3 13 14 30 24 25 12 11 23 15 16 13 0 100 200 300 400 500 600 700 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Total Residential Building Permits in Cities Near and Within The School District of Clayton(2013-2023) Clayton Kirkwood University City Ladue 8 49 13 7 13 61 14 3 490 65 30 6 133 79 24 11 9 94 25 6 6 93 12 6 31 73 11 4 15 75 23 4 4 96 15 5 242 56 16 4 5 40 13 3 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Clayton Kirkwood Ladue University City Residential Building Permits for Cities, by year, Near and Within The School District of Clayton (2013-2023) 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 School District of Clayton © Business Information Services, LLC Page 76 Figure 148. The table above shows that since 1986, there is an average of 2.631 students in the School District of Clayton per each new single-family house built. Consider that since 1986, there has been an average of 33 new houses built in the district per year and the year-to-year average change in enroll- ment in the district is an increase of 25 students per year. The statistical relationship is much weaker, however, with a predictability of only 1.9 percent and correlation of 13.8 percent. Year New Single Family Houses Built Year-to- Year Additional Enrollment Actual Enrollment Predicted Enrollment Variance Actual - Predicted Ratio of New Students to New Houses 1986 36 1,905 2,427 1987 15 68 1,973 2,411 -438 4.533 1988 21 24 1,997 2,416 -419 1.143 1989 3 5 2,002 2,402 -400 1.667 1990 5 161 2,163 2,403 -240 32.200 1991 39 74 2,237 2,429 -192 1.897 1992 6 109 2,346 2,404 -58 18.167 1993 40 50 2,396 2,430 -34 1.250 1994 16 21 2,417 2,412 5 1.313 1995 20 -8 2,409 2,415 -6 -0.400 1996 7 10 2,419 2,405 14 1.429 1997 59 13 2,432 2,444 -12 0.220 1998 11 -28 2,404 2,408 -4 -2.545 1999 29 42 2,446 2,422 24 1.448 2000 32 -4 2,442 2,424 18 -0.125 2001 65 0 2,442 2,449 -7 0.000 2002 92 36 2,478 2,470 8 0.391 2003 51 69 2,547 2,438 109 1.353 2004 31 11 2,558 2,423 135 0.355 2005 44 -98 2,460 2,433 27 -2.227 2006 151 78 2,538 2,515 23 0.517 2007 132 -59 2,479 2,500 -21 -0.447 2008 58 8 2,487 2,444 43 0.138 2009 10 -9 2,478 2,407 71 -0.900 2010 5 31 2,509 2,403 106 6.200 2011 6 7 2,516 2,404 112 1.167 2012 2 -12 2,504 2,401 103 -6.000 2013 10 83 2,587 2,407 180 8.300 2014 9 -39 2,548 2,406 142 -4.333 2015 11 42 2,590 2,408 182 3.818 2016 21 47 2,637 2,416 221 2.238 2017 29 44 2,681 2,422 259 1.517 2018 38 -29 2,652 2,428 224 -0.763 2019 5 -33 2,619 2,403 216 -6.600 2020 14 -90 2,529 2,410 119 -6.429 2021 16 -117 2,412 2,412 0 -7.313 2022 2 -42 2,370 2,401 -31 -21.000 2023 6 61 2,431 2,404 27 10.167 2024 0 -15 2,416 2,400 16 #DIV/0! Average 1986- 2023 33 25 2.631

Year New Single Family Houses Built Year-to- Year Additional Enrollment Actual Enrollment Predicted Enrollment Variance Actual - Predicted Ratio of New Students to New Houses 1986 36 1,905 2,427 1987 15 68 1,973 2,411 -438 4.533 1988 21 24 1,997 2,416 -419 1.143 1989 3 5 2,002 2,402 -400 1.667 1990 5 161 2,163 2,403 -240 32.200 1991 39 74 2,237 2,429 -192 1.897 1992 6 109 2,346 2,404 -58 18.167 1993 40 50 2,396 2,430 -34 1.250 1994 16 21 2,417 2,412 5 1.313 1995 20 -8 2,409 2,415 -6 -0.400 1996 7 10 2,419 2,405 14 1.429 1997 59 13 2,432 2,444 -12 0.220 1998 11 -28 2,404 2,408 -4 -2.545 1999 29 42 2,446 2,422 24 1.448 2000 32 -4 2,442 2,424 18 -0.125 2001 65 0 2,442 2,449 -7 0.000 2002 92 36 2,478 2,470 8 0.391 2003 51 69 2,547 2,438 109 1.353 2004 31 11 2,558 2,423 135 0.355 2005 44 -98 2,460 2,433 27 -2.227 2006 151 78 2,538 2,515 23 0.517 2007 132 -59 2,479 2,500 -21 -0.447 2008 58 8 2,487 2,444 43 0.138 2009 10 -9 2,478 2,407 71 -0.900 2010 5 31 2,509 2,403 106 6.200 2011 6 7 2,516 2,404 112 1.167 2012 2 -12 2,504 2,401 103 -6.000 2013 10 83 2,587 2,407 180 8.300 2014 9 -39 2,548 2,406 142 -4.333 2015 11 42 2,590 2,408 182 3.818 2016 21 47 2,637 2,416 221 2.238 2017 29 44 2,681 2,422 259 1.517 2018 38 -29 2,652 2,428 224 -0.763 2019 5 -33 2,619 2,403 216 -6.600 2020 14 -90 2,529 2,410 119 -6.429 2021 16 -117 2,412 2,412 0 -7.313 2022 2 -42 2,370 2,401 -31 -21.000 2023 6 61 2,431 2,404 27 10.167 2024 0 -15 2,416 2,400 16 #DIV/0! Average 1986- 2023 33 25 2.631 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 77 Figures 149-151. The statistical relationship between house sales and new construction is shown in the scatterplots. (Upper Right) House sales have skyrocketed, but the district’s en- rollment has not changed that much. (Right) Percentage of households occupied by renters in 2019, by Census block areas. 0 500 1,000 1,500 2,000 2,500 3,000 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Comparison of Actual Enrollment to Predicted Enrollment, based on New Single-Family Housing Numbers (1986-2024) Actual Enrollment Predicted Enrollment

2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 77 Figures 149-151. The statistical relationship between house sales and new construction is shown in the scatterplots. (Upper Right) House sales have skyrocketed, but the district’s en- rollment has not changed that much. (Right) Percentage of households occupied by renters in 2019, by Census block areas. 0 500 1,000 1,500 2,000 2,500 3,000 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Comparison of Actual Enrollment to Predicted Enrollment, based on New Single-Family Housing Numbers (1986-2024) Actual Enrollment Predicted Enrollment School District of Clayton © Business Information Services, LLC Page 78 Figure 152. Student roster data matched to assessor data based on addresses. More than 70 percent of the students in the district live in houses valued at more than $500,000. Market Value Number Percentage Number Percentage $0-$50,000 0 0.0% 1 0.0% $50,000-$75,000 0 0.0% 8 0.2% $75,000-$100,000 0 0.0% 2 0.0% $100,000-$150,000 17 0.8% 142 2.9% $150,000-$200,000 38 1.8% 227 4.6% $200,000-$250,000 78 3.6% 340 6.8% $250,000-$300,000 68 3.1% 302 6.1% $300,000-$350,000 99 4.6% 314 6.3% $350,000-$400,000 70 3.2% 162 3.3% $400,000-$450,000 45 2.1% 174 3.5% $450,000-$500,000 71 3.3% 207 4.2% Over $500,000 1,527 70.6% 3,080 62.0% Not Assigned/Apartments 113 5.2% 7 0.1% Grand Total 2,163 100.0% 4,966 100.0% Market Value of Houses, based on County Assessor Data Households of Students Households Overall

More than 70 percent of the students in the district live in houses valued at more than $500,000. Market Value Number Percentage Number Percentage $0-$50,000 0 0.0% 1 0.0% $50,000-$75,000 0 0.0% 8 0.2% $75,000-$100,000 0 0.0% 2 0.0% $100,000-$150,000 17 0.8% 142 2.9% $150,000-$200,000 38 1.8% 227 4.6% $200,000-$250,000 78 3.6% 340 6.8% $250,000-$300,000 68 3.1% 302 6.1% $300,000-$350,000 99 4.6% 314 6.3% $350,000-$400,000 70 3.2% 162 3.3% $400,000-$450,000 45 2.1% 174 3.5% $450,000-$500,000 71 3.3% 207 4.2% Over $500,000 1,527 70.6% 3,080 62.0% Not Assigned/Apartments 113 5.2% 7 0.1% Grand Total 2,163 100.0% 4,966 100.0% Market Value of Houses, based on County Assessor Data Households of Students Households Overall 2024-2025 Enrollment and Demographics Study © Business Information Services, LLC Page 79 Figures 153-154. Nearly one out of two students live in houses built between 1921 and 1940. Almost one out of three students live in houses that are 2,400 to 3,500 sq. ft. Year Built Number Percentage Number Percentage Before 1900 0 0.0% 6 0.1% 1900-1910 43 2.1% 72 1.4% 1911-1920 152 7.3% 245 4.9% 1921-1930 662 31.7% 1,243 25.0% 1931-1940 470 22.5% 883 17.8% 1941-1950 223 10.7% 427 8.6% 1951-1960 248 11.9% 431 8.7% 1961-1970 61 2.9% 327 6.6% 1971-1980 9 0.4% 139 2.8% 1981-1985 3 0.1% 50 1.0% 1986-1990 13 0.6% 80 1.6% 1991-1995 19 0.9% 121 2.4% 1996-2000 15 0.7% 138 2.8% 2001 4 0.2% 65 1.3% 2002 5 0.2% 92 1.9% 2003 2 0.1% 51 1.0% 2004 2 0.1% 31 0.6% 2005 10 0.5% 44 0.9% 2006 4 0.2% 151 3.0% 2007 10 0.5% 132 2.7% 2008 10 0.5% 58 1.2% 2009 1 0.0% 10 0.2% 2010 0 0.0% 5 0.1% 2011 4 0.2% 6 0.1% 2012 4 0.2% 2 0.0% 2013 12 0.6% 10 0.2% 2014 4 0.2% 9 0.2% 2015 3 0.1% 11 0.2% 2016 8 0.4% 21 0.4% 2017 46 2.2% 29 0.6% 2018 28 1.3% 38 0.8% 2019 4 0.2% 5 0.1% 2020 3 0.1% 14 0.3% 2021 1 0.0% 16 0.3% 2022 3 0.1% 2 0.0% 2023 0 0.0% 6 0.1% 2024 0 0.0% 0 0.0% Blank 0 0.0% 1 0.0% Grand Total 2,086 100.0% 4,971 100.0% Year Houses were Built, based on County Assessor Data Households of Students Households Overall Sq. Footage Number Percentage Number Percentage Under 1,000 41 2.0% 306 6.2% 1,000-1,100 52 2.5% 157 3.2% 1,101-1,200 31 1.5% 126 2.5% 1,201-1,300 20 1.0% 154 3.1% 1,301-1,400 41 2.0% 201 4.0% 1,401-1,500 48 2.3% 164 3.3% 1,501-1,600 33 1.6% 155 3.1% 1,601-1,700 49 2.3% 193 3.9% 1,701-2,000 136 6.5% 439 8.8% 2,001-2,200 116 5.6% 275 5.5% 2,201-2,400 133 6.4% 342 6.9% 2,401-3,000 387 18.6% 833 16.8% 3,001-3,500 247 11.8% 504 10.1% 3,501-4,000 183 8.8% 286 5.8% 4,001-5,000 212 10.2% 407 8.2% Over 5,000 103 4.9% 299 6.0% Blank 254 12.2% 130 2.6% Grand Total 2,086 100.0% 4,971 100.0% Home Square Footages, based on County Assessor Data Households of Students Households Overall

Year Built Number Percentage Number Percentage Before 1900 0 0.0% 6 0.1% 1900-1910 43 2.1% 72 1.4% 1911-1920 152 7.3% 245 4.9% 1921-1930 662 31.7% 1,243 25.0% 1931-1940 470 22.5% 883 17.8% 1941-1950 223 10.7% 427 8.6% 1951-1960 248 11.9% 431 8.7% 1961-1970 61 2.9% 327 6.6% 1971-1980 9 0.4% 139 2.8% 1981-1985 3 0.1% 50 1.0% 1986-1990 13 0.6% 80 1.6% 1991-1995 19 0.9% 121 2.4% 1996-2000 15 0.7% 138 2.8% 2001 4 0.2% 65 1.3% 2002 5 0.2% 92 1.9% 2003 2 0.1% 51 1.0% 2004 2 0.1% 31 0.6% 2005 10 0.5% 44 0.9% 2006 4 0.2% 151 3.0% 2007 10 0.5% 132 2.7% 2008 10 0.5% 58 1.2% 2009 1 0.0% 10 0.2% 2010 0 0.0% 5 0.1% 2011 4 0.2% 6 0.1% 2012 4 0.2% 2 0.0% 2013 12 0.6% 10 0.2% 2014 4 0.2% 9 0.2% 2015 3 0.1% 11 0.2% 2016 8 0.4% 21 0.4% 2017 46 2.2% 29 0.6% 2018 28 1.3% 38 0.8% 2019 4 0.2% 5 0.1% 2020 3 0.1% 14 0.3% 2021 1 0.0% 16 0.3% 2022 3 0.1% 2 0.0% 2023 0 0.0% 6 0.1% 2024 0 0.0% 0 0.0% Blank 0 0.0% 1 0.0% Grand Total 2,086 100.0% 4,971 100.0% Year Houses were Built, based on County Assessor Data Households of Students Households Overall Sq. Footage Number Percentage Number Percentage Under 1,000 41 2.0% 306 6.2% 1,000-1,100 52 2.5% 157 3.2% 1,101-1,200 31 1.5% 126 2.5% 1,201-1,300 20 1.0% 154 3.1% 1,301-1,400 41 2.0% 201 4.0% 1,401-1,500 48 2.3% 164 3.3% 1,501-1,600 33 1.6% 155 3.1% 1,601-1,700 49 2.3% 193 3.9% 1,701-2,000 136 6.5% 439 8.8% 2,001-2,200 116 5.6% 275 5.5% 2,201-2,400 133 6.4% 342 6.9% 2,401-3,000 387 18.6% 833 16.8% 3,001-3,500 247 11.8% 504 10.1% 3,501-4,000 183 8.8% 286 5.8% 4,001-5,000 212 10.2% 407 8.2% Over 5,000 103 4.9% 299 6.0% Blank 254 12.2% 130 2.6% Grand Total 2,086 100.0% 4,971 100.0% Home Square Footages, based on County Assessor Data Households of Students Households Overall School District of Clayton © Business Information Services, LLC Page 80 Figure 155. An analysis of number of housing units and home ownership in the Clayton ZIP code. UPDATE 7,770 7,717 7,690 7,770 7,503 7,230 7,307 7,290 7,326 7,190 7,101 7,203 59.8% 58.7% 55.9% 57.1% 57.0% 57.3% 57.6% 59.9% 58.7% 56.4% 56.2% 55.7% 6,600 6,800 7,000 7,200 7,400 7,600 7,800 8,000 53.0% 54.0% 55.0% 56.0% 57.0% 58.0% 59.0% 60.0% 61.0% 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 Comparison of Number of Housing Units and Homeownership Rate in the School District of Clayton, 2011-2022 Housing Units Homeownership Rate