1,001 to 

5,000 

Square 

Feet

5,001 to 

10,000 

Square 

Feet

10,001 to 

25,000 

Square 

Feet

25,001 to 

50,000 

Square 

Feet

50,001 to 

100,000 

Square 

Feet

100,001 to 

200,000 

Square 

Feet

200,001 to 

500,000 

Square 

Feet

Over 

500,000 

Square 

Feet

All Buildings ............................................... 67,338 6,774 8,238 11,153 9,311 10,112 8,271 6,851 6,628

Principal Building Activity

Education .................................................... 8,651 338 444 883 1,803 2,144 1,484 1,311 Q

Food Sales .................................................. 994 302 QQQQQNN

Food Service ............................................... 1,851 754 541 352 Q Q Q N N

Health Care ................................................. 2,918 189 Q 135 274 263 315 756 767

 Inpatient ..................................................... 1,865 N N Q Q Q 243 681 760

 Outpatient .................................................. 1,053 189 Q Q 235 QQQQ

Lodging ........................................................ 4,521 Q 283 436 1,142 758 530 794 Q

Mercantile .................................................... 10,398 925 1,047 2,131 1,001 1,498 1,765 427 1,605

 Retail (Other Than Mall) ............................ 4,766 901 749 1,511 400 464 662 Q Q

 Enclosed and Strip Malls ........................... 5,631 Q 298 619 601 1,034 1,103 359 1,593

Office ........................................................... 12,044 1,212 1,063 1,486 1,191 1,951 1,717 1,560 1,864

Public Assembly .......................................... 4,393 337 646 968 559 740 285 347 Q

Public Order and Safety .............................. 1,168 Q Q 365 155 QQQQ

Religious Worship ....................................... 3,405 272 730 1,435 530 Q Q N Q

Service ........................................................ 3,388 825 962 630 380 QQQQ

Warehouse and Storage ............................. 10,477 790 1,242 1,647 1,693 1,525 1,565 1,290 725

Other ............................................................ 1,222 Q Q 205 QQQQQ

Vacant ......................................................... 1,908 497 527 278 246 QQQQ

Year Constructed

1919 or Before ............................................. 4,034 655 791 972 489 483 Q Q Q

1920 to 1945 ................................................ 6,445 798 776 1,504 673 637 727 705 624

1946 to 1959 ................................................ 9,127 1,025 1,777 1,488 1,343 1,343 789 796 565

1960 to 1969 ................................................ 10,866 928 1,165 1,267 1,987 1,698 1,593 1,243 987

1970 to 1979 ................................................ 11,840 1,056 1,392 2,045 1,587 1,816 1,147 1,206 1,593

1980 to 1989 ................................................ 13,931 1,153 1,150 2,767 1,594 2,273 2,088 1,307 1,599

1990 to 1999 ................................................ 11,094 1,159 1,188 1,110 1,638 1,862 1,662 1,344 1,131

Floors

One .............................................................. 26,800 4,898 4,726 4,887 3,929 3,377 2,930 1,328 724

Two .............................................................. 16,985 1,528 2,263 3,689 2,922 2,799 1,645 1,059 1,081

Three ........................................................... 8,928 278 942 1,907 1,475 1,776 1,128 942 Q

Four to Nine ................................................. 10,180 Q 308 666 979 2,015 2,112 2,325 1,704

Ten or More ................................................. 4,445 N N Q Q Q 457 1,197 2,638

Census Region

Northeast ..................................................... 12,360 901 1,302 1,954 1,407 1,771 1,461 1,362 2,202

Midwest ....................................................... 16,761 1,835 2,045 2,881 1,773 2,436 2,279 1,993 1,519

South ........................................................... 23,485 2,536 3,058 4,194 3,384 3,450 2,864 2,273 1,726

West ............................................................ 14,731 1,503 1,834 2,124 2,746 2,455 1,666 1,222 1,180

Workers (main shift)

Fewer than 5 ................................................ 14,321 4,230 3,748 3,922 1,361 430 356 Q Q

5 to 9 ............................................................ 6,325 1,502 1,331 1,557 1,098 444 350 Q N

10 to 19 ........................................................ 8,028 791 1,792 2,263 1,647 799 Q Q Q

20 to 49 ........................................................ 10,814 235 1,174 2,510 2,759 2,437 955 635 Q

50 to 99 ........................................................ 8,898 Q Q 819 1,690 3,172 2,000 598 Q

100 to 249 .................................................... 8,356 Q Q Q 692 2,067 2,552 1,927 979

250 or More ................................................. 10,595 N N Q Q 762 1,767 3,015 4,977

Weekly Operating Hours

39 or Fewer ................................................. 6,596 1,712 1,790 1,632 571 269 Q Q Q

40 to 48 ........................................................ 13,105 1,621 2,595 2,437 2,049 2,483 1,151 656 Q

49 to 60 ........................................................ 14,200 1,384 1,633 2,712 2,291 2,421 1,534 1,200 1,025

61 to 84 ........................................................ 12,458 859 1,213 1,952 1,673 1,751 1,710 1,231 2,068

85 to 167 ...................................................... 9,116 745 575 1,419 1,037 1,486 1,751 1,244 859

Open Continuously ...................................... 11,863 454 432 1,001 1,689 1,702 1,787 2,271 2,528

Total Floorspace (million square feet)

Table B7. Building Size, Floorspace, 1999

All

Buildings

Building Size

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 24
1,001 to 

5,000 

Square 

Feet

5,001 to 

10,000 

Square 

Feet

10,001 to 

25,000 

Square 

Feet

25,001 to 

50,000 

Square 

Feet

50,001 to 

100,000 

Square 

Feet

100,001 to 

200,000 

Square 

Feet

200,001 to 

500,000 

Square 

Feet

Over 

500,000 

Square 

Feet

Total Floorspace (million square feet)

Table B7. Building Size, Floorspace, 1999

All

Buildings

Building Size

Ownership and Occupancy

Nongovernment Owned .............................. 54,994 6,189 7,466 9,655 7,264 7,571 6,509 5,229 5,112

 Owner Occupied ........................................ 37,785 4,040 5,179 6,736 4,577 4,723 4,097 3,924 4,509

 Nonowner Occupied .................................. 15,596 1,686 1,827 2,656 2,496 2,775 2,374 1,190 592

 Unoccupied ............................................... 1,613 463 Q 264 QQQQQ

Government Owned .................................... 12,343 585 772 1,498 2,047 2,541 1,762 1,622 1,516

Vacancy Status

Completely Vacant ...................................... 953 Q Q 124 QQQQN

Mostly Vacant .............................................. 956 QQQQQQQQ

Partially Vacant ............................................ 15,520 784 1,430 1,824 1,868 2,291 2,067 1,769 3,487

Not At All Vacant ......................................... 49,910 5,493 6,281 9,051 7,196 7,726 6,127 4,940 3,094

Number of Establishments

One .............................................................. 43,343 5,358 5,952 7,812 6,720 6,063 4,798 4,126 2,514

2 to 5 ............................................................ 10,582 857 1,630 1,982 1,220 1,833 1,453 931 676

6 to 10 .......................................................... 3,574 Q 137 784 550 845 480 498 Q

11 to 20 ........................................................ 3,260 Q Q Q 494 839 790 455 416

More than 20 ............................................... 4,811 Q Q Q Q 432 690 702 2,771

Currently Unoccupied .................................. 1,769 512 Q 296 QQQQQ

Energy Sources (more than

one may apply)

Electricity ..................................................... 65,716 6,280 7,721 10,843 9,175 10,034 8,246 6,790 6,628

Natural Gas ................................................. 45,525 3,566 5,088 7,001 6,405 7,165 5,915 5,282 5,104

Fuel Oil ........................................................ 13,285 620 583 983 983 1,612 1,875 2,984 3,645

District Heat ................................................. 5,891 Q Q 414 660 933 903 1,003 1,707

District Chilled Water ................................... 2,750 Q Q Q 294 525 630 470 630

Propane ....................................................... 6,290 635 986 1,203 568 865 854 616 562

Other ............................................................ 2,322 292 Q 290 250 350 Q Q Q

Energy End Uses (more than

one may apply)

Buildings with Space Heating ...................... 61,602 5,684 7,090 9,865 8,565 9,597 7,893 6,445 6,465

Buildings with Cooling ................................. 58,474 4,879 6,212 9,530 8,116 9,401 7,609 6,345 6,382

Buildings with Water Heating ...................... 56,115 4,280 5,748 9,000 8,088 8,887 7,527 6,258 6,327

Buildings with Cooking ................................ 24,681 1,095 1,272 2,415 2,630 3,901 4,092 4,254 5,020

Buildings with Manufacturing ....................... 3,126 Q 318 519 390 600 478 283 Q

Buildings with Electricity

Generation ................................................... 11,882 Q Q 433 813 1,920 1,836 2,778 3,725

Percent of Floorspace Heated

Not Heated .................................................. 5,736 1,091 1,148 1,289 746 515 378 406 Q

1 to 50 .......................................................... 7,593 707 1,504 1,611 1,078 877 739 589 487

51 to 99 ........................................................ 10,745 750 1,177 1,936 1,690 1,407 946 1,341 1,498

100 ............................................................... 43,264 4,227 4,409 6,317 5,796 7,313 6,207 4,515 4,480

Percent of Floorspace Cooled

Not Cooled .................................................. 8,864 1,895 2,026 1,623 1,195 711 662 506 Q

1 to 50 .......................................................... 16,846 1,084 2,233 3,829 2,517 2,574 1,701 1,950 957

51 to 99 ........................................................ 16,966 838 1,435 2,224 2,128 2,668 2,281 2,339 3,053

100 ............................................................... 24,662 2,957 2,544 3,477 3,470 4,159 3,627 2,055 2,372

Percent Lit When Open

Zero ............................................................. 173 QQQQNQNN

1 to 50 .......................................................... 9,187 1,061 2,014 2,320 1,474 925 529 448 415

51 to 99 ........................................................ 20,665 1,499 2,614 3,085 3,013 3,657 2,247 2,345 2,206

100 ............................................................... 34,233 3,299 2,793 4,953 4,499 5,387 5,407 3,914 3,982

Building Never Open/

Electricity Not Used ..................................... 3,080 849 811 762 278 QQQQ

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 25
1,001 to 

5,000 

Square 

Feet

5,001 to 

10,000 

Square 

Feet

10,001 to 

25,000 

Square 

Feet

25,001 to 

50,000 

Square 

Feet

50,001 to 

100,000 

Square 

Feet

100,001 to 

200,000 

Square 

Feet

200,001 to 

500,000 

Square 

Feet

Over 

500,000 

Square 

Feet

Total Floorspace (million square feet)

Table B7. Building Size, Floorspace, 1999

All

Buildings

Building Size

Heating Equipment (more

than one may apply)

Heat Pumps ................................................. 8,923 679 745 1,288 1,376 1,493 1,095 996 1,250

Furnaces ...................................................... 14,449 2,271 2,848 3,047 1,674 1,718 1,283 807 802

Individual Space Heaters ............................ 17,349 1,183 1,350 3,021 2,218 2,492 2,467 1,974 2,643

District Heat ................................................. 5,534 Q Q 307 617 905 883 963 1,698

Boilers ......................................................... 19,522 463 1,040 2,047 2,591 3,698 3,334 3,268 3,081

Packaged Heating Units .............................. 25,743 1,779 2,301 3,994 3,695 4,262 3,811 2,943 2,959

Other ............................................................ 4,073 250 Q 401 510 511 450 782 903

Cooling Equipment (more

than one may apply)

Residential-Type Central

Air Conditioners ........................................... 8,329 890 1,606 1,420 860 1,221 905 715 712

Heat Pumps ................................................. 9,147 700 707 1,270 1,304 1,593 1,229 1,126 1,219

Individual Air Conditioners ........................... 14,276 962 1,396 2,482 2,140 2,057 1,834 2,032 1,373

District Chilled Water ................................... 2,750 Q Q Q 294 525 630 470 630

Central Chillers ............................................ 12,909 Q Q 307 919 1,989 2,331 2,963 4,223

Packaged Air Conditioning

Units ............................................................ 36,527 2,613 3,197 6,031 5,120 6,164 5,217 4,106 4,080

Swamp Coolers ........................................... 2,219 253 181 207 325 477 307 Q Q

Other ............................................................ 1,312 Q Q Q 153 QQQQ

Main Equipment Replaced Since

1995 (more than one may apply)

Heating ........................................................ 13,220 1,325 1,757 2,472 2,145 2,214 1,359 1,141 807

Cooling ........................................................ 17,390 1,399 1,638 3,402 2,614 2,709 1,809 2,032 1,787

Lighting Equipment Types

(more than one may apply)

Incandescent ............................................... 38,156 2,946 4,047 6,055 5,004 5,880 4,685 4,396 5,143

Standard Fluorescent .................................. 60,344 5,154 6,722 9,815 8,344 9,525 7,817 6,423 6,544

Compact Fluorescent .................................. 20,666 738 1,108 1,759 2,296 3,425 3,429 3,575 4,336

High Intensity Discharge .............................. 19,223 245 663 1,701 2,224 3,101 3,633 3,259 4,397

Halogen ....................................................... 17,926 600 991 1,996 1,611 2,929 3,241 2,677 3,882

Other ............................................................ 1,004 QQQQQQQQ

Personal Computers

None ............................................................ 9,583 2,987 2,983 1,839 825 310 305 305 Q

1 to 4 ............................................................ 13,853 2,351 2,964 4,383 2,133 947 807 Q Q

5 to 9 ............................................................ 6,528 936 752 1,520 1,439 1,240 396 Q Q

10 to 19 ........................................................ 7,514 387 1,147 1,432 1,259 1,393 830 730 Q

20 to 49 ........................................................ 8,087 Q 366 1,303 1,662 1,757 1,657 692 540

50 to 99 ........................................................ 5,867 Q Q 578 1,227 1,708 957 813 557

100 to 249 .................................................... 6,818 Q Q Q 659 2,121 1,620 1,027 1,289

250 or More ................................................. 9,088 N N N Q 635 1,698 2,874 3,774

Photocopiers

None ............................................................ 21,631 4,851 5,062 4,841 2,878 1,974 1,016 704 Q

One .............................................................. 12,928 1,487 2,237 3,430 2,495 1,613 1,090 378 Q

2 to 4 ............................................................ 15,620 427 737 2,348 2,770 3,819 2,543 1,998 978

5 to 9 ............................................................ 5,384 Q Q 394 643 1,200 1,234 1,038 665

10 or More ................................................... 11,774 N N Q 526 1,507 2,389 2,733 4,479

Other Electronic Equipment

(more than one may apply)

Laser Printers .............................................. 46,567 2,190 3,206 6,508 6,550 8,540 7,183 6,109 6,281

FAX Machines ............................................. 54,764 3,594 4,931 8,093 7,773 9,563 7,786 6,425 6,599

Medical Diagnostic Equipment .................... 2,493 Q Q Q 193 245 296 732 673

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 26
1,001 to 

5,000 

Square 

Feet

5,001 to 

10,000 

Square 

Feet

10,001 to 

25,000 

Square 

Feet

25,001 to 

50,000 

Square 

Feet

50,001 to 

100,000 

Square 

Feet

100,001 to 

200,000 

Square 

Feet

200,001 to 

500,000 

Square 

Feet

Over 

500,000 

Square 

Feet

Total Floorspace (million square feet)

Table B7. Building Size, Floorspace, 1999

All

Buildings

Building Size

Energy-Related Space Functions

(more than one may apply)

Commercial Food Preparation .................... 23,328 1,005 1,129 2,002 2,472 3,729 3,923 4,104 4,965

Activities with Large

Amounts of Hot Water ................................. 21,793 760 1,063 2,331 3,158 3,346 3,547 3,666 3,922

Building Shell Conservation

Features (more than one

may apply)

Multipaned Windows ................................... 38,193 3,052 3,806 5,506 5,027 6,209 5,064 4,499 5,030

Tinted, Reflective, or

Shading Glass ............................................. 29,915 1,530 2,423 3,385 3,993 4,866 4,938 4,032 4,746

HVAC Conservation Features

(more than one may apply)

Variable Air-Volume System ....................... 19,387 634 1,058 1,309 2,115 3,430 3,350 3,077 4,414

Economizer Cycle ........................................ 21,256 640 798 1,392 2,219 3,679 4,164 3,408 4,955

HVAC Maintenance ..................................... 53,395 3,690 4,671 8,100 7,560 9,044 7,613 6,207 6,510

Energy Management and

Control System (EMCS) .............................. 21,613 511 475 1,391 2,299 3,953 4,267 3,930 4,787

Lighting Conservation Features

(more than one may apply)

Specular Reflectors ..................................... 19,994 1,171 1,389 1,970 2,384 3,285 2,837 3,087 3,870

Electronic Ballasts ....................................... 42,035 2,736 4,044 5,620 5,468 6,903 6,366 5,248 5,650

Skylights or Atriums ..................................... 18,286 556 977 1,949 2,251 2,745 2,765 2,898 4,144

Off-Hour Equipment Reduction

(more than one may apply)

Heating ........................................................ 39,969 4,018 5,522 6,731 5,788 6,269 5,007 3,315 3,318

Cooling ........................................................ 39,161 3,703 4,901 6,912 5,484 6,322 4,854 3,438 3,546

Lighting ........................................................ 51,083 5,227 6,819 9,236 7,153 8,069 6,268 4,265 4,046

Office Equipment ......................................... 9,063 Q Q 852 1,403 2,625 1,927 1,213 825

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.

Note: 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 1999 Commercial Buildings Energy Consumption Survey.

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 27