1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Building Floorspace

(Square Feet)

1,001 to 5,000 ................................... 6,789 490 796 860 690 966 1,149 1,324 515

5,001 to 10,000 ................................. 6,585 502 827 643 865 1,332 721 1,209 486

10,001 to 25,000 ............................... 11,535 804 988 1,421 1,460 1,869 1,647 2,388 958

25,001 to 50,000 ............................... 8,668 677 838 935 1,234 1,720 1,174 1,352 739

50,001 to 100,000 ............................. 9,057 491 641 927 1,483 1,146 1,390 2,058 921

100,001 to 200,000 ........................... 9,064 Q 704 1,148 1,039 1,411 1,496 1,934 1,060

200,001 to 500,000 ........................... 7,176 Q 1,288 569 947 1,243 1,237 984 609

Over 500,000 .................................... 5,908 Q 790 541 382 1,085 1,518 1,111 Q

Principal Building Activity

Education .......................................... 9,874 410 1,036 1,744 1,665 1,410 1,284 1,546 778

Food Sales ....................................... 1,255 Q Q Q Q Q 188 281 Q

Food Service ..................................... 1,654 281 138 194 Q 227 182 327 Q

Health Care ....................................... 3,163 Q 203 445 395 754 522 578 185

 Inpatient .......................................... 1,905 Q Q 318 304 556 358 161 Q

 Outpatient ....................................... 1,258 Q Q Q Q 197 164 416 Q

Lodging ............................................. 5,096 Q Q 276 744 840 980 807 489

Retail (Other Than Mall)..................... 4,317 220 445 360 543 900 361 1,080 407

Office ................................................ 12,208 749 1,186 917 1,335 2,162 3,296 1,913 650

Public Assembly ............................... 3,939 323 353 780 408 594 448 734 301

Public Order and Safety .................... 1,090 Q Q Q Q Q Q 327 Q

Religious Worship ............................. 3,754 586 334 603 502 412 414 566 338

Service .............................................. 4,050 Q 473 440 447 996 511 777 263

Warehouse and Storage ................... 10,078 254 1,208 567 1,051 1,462 1,501 2,723 1,312

Other ................................................ 1,738 Q Q Q Q Q Q 492 Q

Vacant .............................................. 2,567 Q 465 QQQQQQ

Census Region

Northeast .......................................... 12,905 1,406 2,504 2,094 1,737 1,723 1,374 1,370 698

Midwest ............................................ 17,080 1,552 2,099 2,027 2,229 3,237 1,949 2,746 1,240

South ................................................ 23,489 516 1,348 1,795 2,538 3,726 4,768 6,241 2,557

West ................................................. 11,310 295 920 1,128 1,597 2,086 2,241 2,004 1,038

Climate Zone: 30-Year Average

Under 2,000 CDD and --

 More than 7,000 HDD ..................... 10,622 1,227 1088 1075 1,405 2,215 1031 1,838 742

 5,500-7,000 HDD ............................ 17,335 1,407 2,217 2,445 2,302 2,967 2,357 2,492 1,148

 4,000-5,499 HDD ............................ 11,504 731 1,960 1,388 1,509 1,729 1,673 1,602 912

 Fewer than 4,000 HDD ................... 15,739 281 1,218 1,596 1,883 2,508 3,115 3,741 1,396

2,000 CDD or More and --

 Fewer than 4,000 HDD ................... 9,584 Q 388 541 1,001 1,354 2,156 2,687 1,334

Number of Floors

One ................................................... 25,981 348 1,730 2,771 3,474 4,484 3,856 6,577 2,742

Two ................................................... 16,270 913 1,539 2,095 2,188 2,977 2,336 2,976 1,245

Three ................................................ 7,501 856 1,396 1,218 795 946 724 960 605

Four to Nine ...................................... 10,085 1,393 1,525 485 1,013 1,570 1,924 1,485 690

Ten or More ...................................... 4,947 Q 681 475 630 797 1,492 Q Q

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 70

Released: Dec 2006

Next CBECS will be conducted in 2007
1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Elevators and Escalators

(more than one may apply)

Any Elevators .................................... 24,617 1,624 2,976 1,989 2,914 3,790 4,941 4,093 2,290

Number of Elevators

 One ................................................. 8,221 588 998 806 1,164 1,103 981 1,687 893

 Two to Five ..................................... 10,129 815 1,334 672 1,123 1,501 2,168 1,577 939

 Six or More ..................................... 6,268 Q 644 512 626 1,187 1,792 830 Q

Any Escalators .................................. 2,350 QQQQQQQQ

Number of Workers (main shift)

Fewer than 5 ..................................... 15,492 1,262 2,211 1,897 1,967 2,456 1,625 2,644 1,431

5 to 9 ................................................ 6,166 524 608 634 642 1,016 1,035 1,206 500

10 to 19 ............................................. 7,803 481 1,053 896 825 1,331 889 1,565 763

20 to 49 ............................................. 10,989 713 909 1,536 1,408 1,886 1,274 2,289 973

50 to 99 ............................................. 7,934 400 668 712 1,201 1,092 1,432 1,557 871

100 to 249 ......................................... 6,871 Q 518 604 1,145 1,230 1,403 1,338 471

250 or More ...................................... 9,528 Q 903 767 913 1,760 2,674 1,760 524

Weekly Operating Hours

Fewer than 40 ................................... 6,863 811 841 888 990 977 830 900 625

40 to 48 ............................................. 11,622 563 1,339 1,725 1,200 1,987 1,891 2,103 813

49 to 60 ............................................. 15,723 898 2,058 1,608 2,217 2,522 2,643 2,749 1,028

61 to 84 ............................................. 10,334 615 1,009 1,105 1,103 1,778 1,734 1,950 1,041

85 to 167 ........................................... 7,092 337 398 619 855 1,157 846 1,974 906

Open Continuously ........................... 13,149 545 1,227 1,100 1,735 2,351 2,388 2,684 1,120

Ownership and Occupancy

Nongovernment Owned .................... 49,421 3,119 4,879 4,994 5,660 8,167 8,564 9,529 4,508

 Owner Occupied ............................. 23,591 1,716 2,883 2,514 2,917 3,410 4,095 4,039 2,016

 Nonowner Occupied ....................... 23,914 1,357 1,597 2,252 2,452 4,315 4,336 5,289 2,315

 Unoccupied ..................................... 1,916 QQQQQQQQ

Government Owned .......................... 15,363 650 1,992 2,050 2,441 2,605 1,768 2,830 1,025

 Federal ........................................... 1,956 Q Q Q 333 QQQQ

 State ............................................... 3,808 Q 282 377 819 738 566 713 Q

 Local ............................................... 9,599 440 1,020 1,551 1,289 1,572 1,094 1,758 874

Vacancy Status

Completely Vacant ............................ 2,161 Q 465 QQQQQQ

Mostly Vacant ................................... 406 QQQQQQQQ

Partially Vacant ................................. 12,382 994 1,623 1,063 1,342 1,751 2,599 1,953 1,056

Not At All Vacant .............................. 49,834 2,519 4,784 5,629 6,283 8,568 7,581 10,197 4,272

Number of Establishments

One ................................................... 45,144 2,460 4,557 5,229 5,582 7,604 6,287 9,151 4,273

2 to 5 ................................................ 10,960 788 997 1,145 1,476 1,552 2,142 2,080 780

6 to 10 .............................................. 1,958 Q Q Q 306 297 387 Q Q

11 to 20 ............................................. 1,951 Q Q Q Q 277 491 Q Q

More than 20 ..................................... 2,609 Q Q Q Q 600 882 Q Q

Currently Unoccupied ....................... 2,161 Q 465 QQQQQQ

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 71

CONTINUED
1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Predominant Exterior

Wall Material

Brick, Stone or Stucco ...................... 32,817 2,987 5,611 4,324 4,157 4,469 4,435 4,960 1,874

Concrete (Block or Poured) ............... 10,832 178 784 1,734 1,936 1,964 1,546 1,615 1,075

Concrete Panels ............................... 6,559 Q Q Q 557 1,362 1,676 1,740 1059

Siding or Shingles ............................. 4,120 518 325 343 409 595 522 1,179 228

Metal Panels ..................................... 7,912 Q Q 439 747 1,757 1,512 2,356 1016

Window Glass ................................... 1,024 N Q Q Q Q 289 Q Q

Other ................................................ 1,113 QQQQQQQQ

No One Major Type ........................... 406 QQQQQQQQ

Predominant Roof Material

Built-Up ............................................. 21,170 1,202 2,825 2,619 3,154 3,875 3,538 3,020 937

Shingles (Not Wood) ......................... 10,195 1,171 878 1,298 1,304 1,415 1,450 1,829 849

Metal Surfacing ................................. 11,944 218 328 526 994 1,955 2,014 4,101 1,807

Synthetic or Rubber .......................... 14,730 658 1,328 1,544 2,160 2,581 2,218 2,656 1,584

Slate or Tile ...................................... 2,462 293 562 330 Q 341 239 388 Q

Wooden Materials ............................. 887 QQQQQQQQ

Concrete ........................................... 2,231 N Q Q Q Q 365 Q Q

Other ................................................ 598 N N QQQQQQ

No One Major Type ........................... 565 QQQQQQQQ

Renovations in Buildings

Constructed Before 1980

(more than one may apply)

Any Type of Renovation

 Since 1980 ....................................... 17,844 1,861 3,353 3,932 3,805 4,893 N N N

 Addition or Annex ........................... 6,551 517 934 1,618 1,433 2,048 N N N

 Reduction In Floorspace ................ 1,012 QQQQQNNN

 Cosmetic Improvements ................ 13,119 1,490 2,460 2,801 2,958 3,410 N N N

 Wall or Roof Replacement ............. 8,070 700 1,549 1,919 1,910 1,993 N N N

 Interior Wall

 Re-Configuration ........................... 8,518 823 1,713 1,655 1,957 2,370 N N N

 HVAC Equipment Upgrade ............ 10,768 951 2,196 2,289 2,616 2,716 N N N

 Lighting Upgrade ............................ 10,275 1,076 2,141 2,266 2,359 2,433 N N N

 Window Replacement .................... 6,354 759 1,626 1,706 1,209 1,054 N N N

 Plumbing System Upgrade ............ 7,144 730 1,671 1,611 1,603 1,527 N N N

 Insulation Upgrade ......................... 4,015 565 911 736 934 869 N N N

 Other Renovation ........................... 523 QQQQQNNN

No Renovations Since 1980 .............. 18,714 1,908 3,518 3,113 4,296 5,879 N N N

Building Newer than 1980 ................. 28,225 NNNNN 10,332 12,360 5,533

Energy Sources (more than

one may apply)

Electricity .......................................... 63,307 3,730 6,595 6,838 8,057 10,555 10,154 12,078 5,299

Natural Gas ...................................... 43,468 2,759 4,679 4,659 5,635 7,659 6,469 8,177 3,431

Fuel Oil ............................................. 15,157 961 1,986 2,048 1,685 2,187 3,079 2,086 1,125

District Heat ...................................... 5,443 294 1,207 705 853 588 888 705 Q

District Chilled Water ........................ 2,853 Q Q 359 446 456 531 804 Q

Propane ............................................ 7,076 338 961 726 746 1,222 922 1,428 733

Other ................................................ 1,401 Q Q Q 281 401 Q Q Q

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 72

CONTINUED
1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Energy End Uses (more than

one may apply)

Buildings with Space Heating ............ 60,028 3,667 6,236 6,534 7,510 10,223 9,808 11,254 4,796

Buildings with Cooling ....................... 56,940 2,891 4,919 6,045 7,125 9,973 9,836 11,304 4,848

Buildings with Water Heating ............ 56,478 3,353 5,292 5,924 7,202 9,787 9,420 10,816 4,683

Buildings with Cooking ...................... 22,237 1,362 2,242 3,156 2,669 3,431 3,677 3,597 2,104

Buildings with Manufacturing ............ 3,138 Q Q Q 514 537 429 572 Q

Buildings with Electricity

 Generation ....................................... 12,821 232 852 1,210 1,442 2,275 3,238 2,401 1,171

Percent of Floorspace Heated

Not Heated ....................................... 4,756 102 635 511 591 549 524 1,106 737

1 to 50 .............................................. 6,850 635 819 506 557 998 1,054 1,370 911

51 to 99 ............................................. 8,107 676 1,066 869 867 1,248 1,361 1,480 540

100 ................................................... 45,071 2,356 4,351 5,159 6,086 7,978 7,394 8,403 3,345

Percent of Floorspace Cooled

Not Cooled ........................................ 7,843 878 1,952 999 976 799 496 1,056 686

1 to 50 .............................................. 16,598 1,320 1,990 2,083 2,202 2,751 2,061 3,000 1,190

51 to 99 ............................................. 13,211 728 1,445 1,490 1,734 2,112 2,324 2,421 956

100 ................................................... 27,132 842 1,484 2,473 3,189 5,110 5,450 5,883 2,701

Percent Lit When Open

Zero .................................................. 293 QQQQQQQQ

1 to 50 .............................................. 10,203 1,264 1,417 1,295 1,456 1,117 1,193 1,653 808

51 to 99 ............................................. 18,288 1,132 1,731 2,026 2,437 3,487 3,077 3,074 1,324

100 ................................................... 32,789 1,132 3,166 3,313 3,824 5,645 5,752 7,024 2,933

Building Never Open/

 Electricity Not Used ......................... 3,210 225 530 400 Q 516 291 494 389

Percent Lit When Closed

Zero .................................................. 17,385 1,538 1,962 1,699 1,988 2,965 2,065 3,309 1,860

1 to 50 .............................................. 30,948 1,587 3,289 3,977 4,114 5,001 5,317 5,535 2,127

51 to 100 ........................................... 2,093 Q Q Q 260 274 427 659 Q

Building Never Closed/

 Electricity Not Used ......................... 14,357 584 1,503 1,307 1,739 2,532 2,523 2,857 1,311

Heating Equipment (more

than one may apply)

Heat Pumps ...................................... 8,814 Q 622 848 827 1,378 2,018 1,974 999

 Packaged Heat Pumps ................... 5,442 Q Q 540 512 1,019 1,528 1,031 556

 Split-System Heat Pumps ............... 2,581 Q Q Q 336 426 451 738 Q

 Individual Room Heat Pumps .......... 2,691 Q Q 283 Q 238 626 442 446

Furnaces ........................................... 19,615 1,350 2,085 2,475 2,346 3,612 2,418 3,971 1,359

Individual Space Heaters .................. 12,545 782 1,427 1,442 1,469 2,393 1,799 2,433 800

District Heat ...................................... 5,166 Q 1,203 661 786 573 780 691 Q

Boilers .............................................. 20,423 1,926 2,744 3,081 2,957 3,339 2,803 2,257 1,316

Packaged Heating Units ................... 18,021 390 979 1,422 1,993 3,443 3,816 4,067 1,911

Other ................................................ 3,262 Q Q Q 242 779 641 814 401

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 73

CONTINUED
1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Cooling Equipment (more

than one may apply)

Residential-Type Central

 Air Conditioners ............................... 11,035 722 1,573 1,175 1,421 1,961 1,397 2,066 720

Heat Pumps ...................................... 9,041 Q 653 888 794 1,392 2,055 2,038 1,064

 Packaged Heat Pumps ................... 5,426 Q Q 527 479 997 1,522 987 582

 Split-System Heat Pumps ............... 2,606 Q Q Q 336 400 468 693 Q

 Individual Room Heat Pumps .......... 2,940 Q Q 283 Q 298 698 581 460

Individual Air Conditioners ................ 12,558 1,278 1,534 2,594 1,888 2,065 1,342 1,366 492

District Chilled Water ........................ 2,853 Q Q 359 446 456 531 804 Q

Central Chillers ................................. 11,636 392 1,063 891 1,776 2,323 2,801 1,426 963

Packaged Air Conditioning

 Units ................................................ 29,969 1,198 2,847 3,023 3,596 5,400 4,855 6,264 2,787

Swamp Coolers ................................ 1,561 Q Q Q Q 483 324 252 Q

Other ................................................ 1,232 QQQQQQQQ

Main Equipment Replaced Since

1990 (more than one may apply)

Heating ............................................. 16,403 1,309 2,176 2,567 2,983 4,287 3,080 N N

Cooling ............................................. 20,995 1,714 2,560 3,412 4,169 5,275 3,865 N N

Lighting Equipment Types

(more than one may apply)

Incandescent .................................... 38,528 2,663 4,107 4,324 4,866 7,003 6,213 6,466 2,885

Standard Fluorescent ........................ 59,688 3,430 6,078 6,488 7,739 10,048 9,743 11,358 4,803

Compact Fluorescent ........................ 27,571 1,300 2,827 2,461 3,605 4,613 5,286 4,899 2,581

High Intensity Discharge ................... 20,643 536 2,351 2,105 2,284 3,530 3,417 4,419 2,002

Halogen ............................................ 17,703 881 1,225 1,973 1,798 2,921 3,384 3,352 2,169

Other ................................................ 269 Q N QQQQQQ

Refrigeration Equipment

(more than one may apply)

Any Refrigeration............................... 52,974 2,939 5,006 6,028 6,610 8,830 8,725 10,347 4,488

 Commercial Refrigeration ............... 26,768 1,297 2,580 3,544 3,090 4,422 4,728 4,568 2,539

 Walk-In Units ................................ 20,254 990 1,853 2,399 2,324 3,461 3,840 3,341 2,046

 Cases or Cabinets ........................ 20,424 951 1,829 2,712 2,452 3,517 3,659 3,390 1,914

 Residential-Type Units .................... 38,884 2,323 4,088 4,700 4,898 6,412 6,253 7,130 3,081

 Vending Machines .......................... 35,335 1,074 3,426 3,332 4,699 6,208 6,219 7,248 3,127

No Refrigeration ................................ 11,809 830 1,865 1,017 1,491 1,943 1,607 2,012 1,045

Office Equipment (more

than one may apply)

Computers ........................................ 55,627 3,008 5,546 5,690 7,076 9,391 9,427 10,778 4,712

 With Flat Screen Monitors ............... 26,417 997 2,729 2,275 3,234 4,887 5,227 4,835 2,232

Dedicated Servers ............................ 36,338 1,428 3,502 3,207 4,600 6,083 7,254 7,067 3,198

Laser Printers ................................... 33,012 1,991 3,431 3,818 4,501 5,719 5,037 5,942 2,574

Inkjet Printers .................................... 32,210 1,581 2,518 2,888 3,793 5,648 6,132 6,775 2,875

FAX Machines .................................. 52,373 2,692 5,136 5,380 6,501 8,944 9,052 10,428 4,241

Photocopiers ..................................... 46,257 2,173 4,289 5,011 5,828 7,922 8,081 9,146 3,805

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 74

CONTINUED
1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Number of Computers

None ................................................. 9,156 761 1,325 1,355 1,025 1,382 905 1,582 821

1 to 4 ................................................ 12,395 1,072 1,389 1,560 1,626 1,920 1,465 2,323 1,040

5 to 9 ................................................ 7,179 353 1,022 749 799 1,143 878 1,653 583

10 to 19 ............................................. 6,610 621 280 367 793 1,315 1,146 1,484 604

20 to 49 ............................................. 7,414 343 591 874 828 1,369 981 1,660 768

50 to 99 ............................................. 5,376 Q 790 633 749 615 1,158 900 346

100 to 249 ......................................... 6,690 321 467 719 1011 1,128 1,138 1,109 798

250 or More ...................................... 9,963 Q 1,007 789 1,270 1,901 2,661 1,650 573

Number of Dedicated Servers

None ................................................. 28,445 2,341 3,370 3,838 3,501 4,690 3,078 5,293 2,335

1 to 4 ................................................ 24,116 1,108 2,196 2,140 3,365 4,122 4,074 4,729 2,383

5 to 9 ................................................ 3,864 Q Q 329 316 559 733 852 327

10 to 19 ............................................. 3,027 Q Q Q 397 426 645 645 Q

20 to 49 ............................................. 2,583 Q Q Q 357 580 984 Q Q

50 or More ........................................ 2,748 Q Q Q Q 396 819 560 Q

Number of Photocopiers

None ................................................. 18,526 1,596 2,582 2,034 2,273 2,850 2,251 3,213 1,728

One ................................................... 15,475 942 1,517 1,865 1,815 2,473 1,828 3,684 1,351

2 to 4 ................................................ 15,082 897 1,210 1,561 2,115 2,415 2,625 2,850 1,409

5 to 9 ................................................ 5,515 Q Q 443 828 990 936 1029 476

10 or More ........................................ 10,185 Q 906 1,142 1,070 2,044 2,692 1,584 570

Energy-Related Space Functions

(more than one may apply)

Commercial Food Preparation .......... 22,223 1,362 2,242 3,145 2,667 3,431 3,677 3,597 2,104

Activities with Large

 Amounts of Hot Water ..................... 19,482 842 1,752 2,318 2,413 3,394 3,332 3,518 1,912

Separate Computer Area .................. 26,873 893 2,605 2,724 3,459 4,548 5,488 4,680 2,476

HVAC Conservation Features

(more than one may apply)

Variable Air-Volume System ............. 19,597 775 1,163 1,526 2,001 3,338 4,459 4,259 2,076

Economizer Cycle ............................. 21,108 645 1,529 1,444 2,519 4,071 4,606 4,113 2,182

HVAC Maintenance .......................... 51,163 2,526 5,413 5,145 6,217 8,562 8,728 10,138 4,433

Energy Management and

 Control System (EMCS) ................... 15,630 365 1,195 1,415 2,156 2,337 3,585 3,069 1,509

Window and Interior Lighting

Features (more than one

may apply)

Multipaned Windows ......................... 38,910 2,187 3,565 3,894 3,813 6,000 6,907 8,351 4,193

Tinted Window Glass ........................ 29,887 874 2,373 2,319 3,511 5,312 6,267 6,177 3,053

Reflective Window Glass .................. 8,544 264 579 736 674 1,474 1,861 1,706 1,251

External Overhangs

 or Awnings ....................................... 17,242 939 1,503 1,705 2,338 2,932 2,878 3,411 1,537

Skylights or Atriums .......................... 12,546 566 1,301 800 1,359 1,950 2,821 2,809 941

Daylighting Sensors .......................... 2,868 Q Q Q Q 365 758 613 400

Specular Reflectors .......................... 26,118 1,184 2,959 2,197 3,166 4,242 4,850 5,080 2,439

Electronic Ballasts ............................ 46,882 2,293 4,825 4,820 5,742 7,772 8,207 8,953 4,270

Energy Management and

 Control System (EMCS)

 for Lighting ....................................... 4,781 Q Q Q 404 830 1,372 1,095 514

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 75

CONTINUED
1919 or

Before

1920 to

1945

1946 to

1959

1960 to 

1969

1970 to

1979

1980 to

1989

1990 to

1999

2000 to

2003

All Buildings* .................................. 64,783 3,769 6,871 7,045 8,101 10,772 10,332 12,360 5,533

Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003

Total Floorspace (million square feet)

All

Buildings*

Year Constructed

Equipment Usage Reduced

When Building Not In Full Use

(more than one may apply)

a

Heating ............................................. 42,722 2,432 4,062 5,080 5,661 7,210 7,206 7,755 3,316

Cooling ............................................. 43,205 2,244 3,884 4,974 5,408 7,177 7,572 8,365 3,580

Lighting ............................................. 46,987 2,905 4,947 5,495 5,932 7,754 7,266 8,827 3,864

Office Equipment .............................. 19,397 1,180 2,143 2,872 2,526 3,017 2,596 3,556 1,506

Notes: ● HVAC = Heating, Ventilation, and Air Conditioning. ● Due to rounding, data may not sum to totals.

Source: Energy Information Administration, Office of Energy Markets and End Use, Form EIA-871A of the 2003 Commercial Buildings

Energy Consumption Survey. 

See "Guide to the Tables" or "Glossary" for further explanations of the terms used in this table. Both can be accessed from the CBECS web 

site - http://www.eia.doe.gov/emeu/cbecs.

 * Figures in this table do not include enclosed malls and strip malls. Mall buildings add an estimated 213 thousand buildings comprising 6.9 

billion square feet.

a

 The definition for one or more of these row items has changed and may not be directly comparable with past CBECS estimates. See 

"Guide to the Tables" for discussion of the differences.

Q=Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

N=No responding cases in sample.

Energy Information Administration

2003 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables

Revised June 2006 76

CONTINUED