Release date: February 2015

Revised date: May 2016

All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Building floorspace (square feet)

1,001 to 5,000 8,041 1,418 918 806 974 1,238 1,281 1,038 369

5,001 to 10,000 8,900 1,154 793 1,149 1,069 1,655 1,461 1,038 581

10,001 to 25,000 14,105 1,924 1,328 1,773 1,862 2,430 1,871 2,003 914

25,001 to 50,000 11,917 1,407 829 1,469 1,557 2,362 1,628 1,897 768

50,001 to 100,000 13,918 1,040 1,315 1,736 1,563 1,845 2,732 2,578 1,110

100,001 to 200,000 12,415 1,162 927 1,333 1,488 1,872 1,882 2,504 1,248

200,001 to 500,000 10,724 836 1,002 1,444 1,151 2,561 1,694 1,456 578

Over 500,000 7,074 1,069 269 653 1,181 1,268 1,254 1,225 Q

Principal building activity

Education 12,239 1,382 1,447 2,180 1,178 1,268 1,655 2,327 802

Food sales 1,252 Q Q Q Q 157 292 Q Q

Food service 1,819 318 183 167 243 306 309 180 Q

Health care 4,155 197 356 384 867 595 604 608 544

Inpatient 2,374 Q 244 265 681 215 304 311 292

Outpatient 1,781 Q Q 119 186 380 301 298 Q

Lodging 5,826 375 362 761 830 1,178 1,066 850 403

Mercantile 11,330 639 657 1,029 1,573 2,275 2,085 2,168 902

Retail (other than mall) 5,439 632 303 387 534 767 1,072 1,190 554

Enclosed and strip malls 5,890 Q 354 642 1,039 1,508 1,013 978 Q

Office 15,952 2,506 1,254 1,427 2,125 3,969 2,108 1,914 649

Public assembly 5,559 1,020 521 866 586 599 890 718 360

Public order and safety 1,440 Q Q Q Q Q 419 Q Q

Religious worship 4,557 703 612 704 378 547 651 765 Q

Service 4,630 671 330 520 629 877 775 584 245

Warehouse and storage 13,077 1,153 740 1,386 1,467 2,294 2,204 2,753 1,081

Other 2,002 Q Q Q Q 273 280 236 Q

Vacant 3,256 680 348 305 454 712 464 Q Q

Census region

Northeast 15,534 3,591 1,581 2,240 1,952 1,743 2,044 1,480 903

Midwest 18,919 2,808 1,662 2,687 2,619 2,617 2,798 2,731 997

South 34,279 2,485 2,634 3,499 3,693 6,942 6,172 6,154 2,701

West 18,360 1,124 1,504 1,937 2,582 3,929 2,788 3,374 1,122

Climate region1

Very cold/Cold 31,898 4,886 3,072 4,115 4,190 4,352 4,884 4,384 2,016

Mixed-humid 27,873 3,425 2,489 3,440 3,137 4,411 4,458 4,503 2,011

Mixed-dry/Hot-dry 12,037 777 1,023 1,514 1,690 2,334 1,565 2,227 908

Hot-humid 12,831 715 604 974 1,598 3,397 2,553 2,266 724

Marine 2,454 205 Q 318 232 737 344 359 Q

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Number of floors

One 39,809 2,080 3,194 3,969 4,970 7,897 7,756 7,022 2,921

Two 20,206 1,716 1,926 3,192 3,000 3,135 2,866 3,234 1,137

Three 8,140 2,146 642 1,070 700 996 827 1,091 667

Four to nine 13,535 3,079 1,404 1,364 1,332 1,899 1,708 1,879 871

Ten or more 5,404 988 215 767 844 1,303 646 512 Q

Elevators and escalators 

(more than one may apply)

Any elevators 32,120 4,656 2,401 3,825 3,973 5,086 4,640 5,151 2,387

Number of elevators

One 11,158 1,967 974 1,438 1,226 1,117 1,624 2,062 750

Two to five 12,817 1,491 1,037 1,409 1,528 2,271 1,873 1,956 1,252

Six or more 8,145 1,198 390 979 1,219 1,698 1,143 1,133 385

Any escalators 3,654 738 Q 375 576 722 534 542 Q

Number of workers (main shift)

Fewer than 5 17,751 3,338 1,890 2,109 2,100 2,678 2,546 2,138 954

5 to 9 8,973 1,121 723 1,185 1,175 1,443 1,252 1,332 743

10 to 19 9,623 844 755 1,167 1,425 1,566 1,686 1,469 711

20 to 49 14,514 1,067 1,043 2,016 1,706 2,771 2,460 2,426 1,026

50 to 99 13,476 1,293 1,472 1,610 1,171 2,371 2,305 2,298 955

100 to 249 10,941 812 812 1,321 1,139 1,849 1,802 2,358 849

250 or more 11,815 1,535 686 955 2,131 2,552 1,752 1,718 485

Weekly operating hours

Fewer than 40 8,220 1,783 962 909 1,178 1,109 1,223 784 272

40 to 48 15,828 2,281 1,933 1,949 1,588 2,689 2,081 2,418 889

49 to 60 20,529 2,113 1,550 2,353 2,393 4,379 3,263 3,216 1,263

61 to 84 15,867 1,558 1,073 2,079 2,101 2,902 2,468 2,466 1,220

85 to 167 9,395 913 713 1,112 1,041 1,094 1,395 2,381 745

Open continuously 17,253 1,360 1,150 1,961 2,545 3,057 3,373 2,474 1,333

Ownership and occupancy

Nongovernment owned 67,550 7,187 5,253 7,070 8,539 13,074 10,757 10,940 4,729

Owner occupied 30,637 3,420 2,918 3,356 3,618 4,465 5,366 5,244 2,251

Leased to tenant(s) 26,115 2,366 1,458 2,554 3,578 5,961 4,076 4,365 1,757

Owner occupied and leased 8,873 1,054 628 911 1,048 2,277 1,066 1,239 651

Unoccupied 1,925 348 249 249 295 Q Q Q Q

Government owned 19,543 2,821 2,128 3,293 2,306 2,156 3,046 2,799 994

Federal 1,573 588 Q Q Q Q 277 Q N

State 5,539 761 679 991 895 580 687 709 Q

Local 12,431 1,472 1,413 2,097 1,246 1,509 2,081 1,855 757
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Party responsible for operation

and maintenance of energy

systems

Building owner 73,702 9,118 6,553 9,223 8,822 12,135 11,688 11,412 4,750

Business owner or tenant 11,309 708 759 1,072 1,646 2,579 1,724 1,902 918

Property management 1,250 Q Q Q Q 358 Q Q Q

Other 832 Q Q Q Q Q Q Q Q

Provider of direct input on energyrelated equipment purchases

Building owner 76,271 9,171 6,724 9,414 9,381 12,909 12,020 11,719 4,934

Business owner or tenant 8,256 557 577 770 1,104 1,694 1,339 1,513 702

Property management 880 Q Q Q Q Q Q Q Q

Other 1,686 Q Q Q 225 390 317 352 Q

Number of establishments

One 54,994 6,118 4,937 6,803 6,639 8,315 8,771 9,604 3,805

2 to 5 17,756 2,421 1,595 2,092 2,065 3,039 2,750 2,393 1,401

6 to 10 4,425 347 Q 484 604 1,092 636 717 Q

11 to 20 3,704 Q Q 355 439 1,022 710 724 Q

More than 20 3,821 410 Q 359 704 1,363 545 Q Q

Currently unoccupied 2,393 499 268 269 394 399 Q Q Q

Campus or complex activity

Not part of a campus or complex 52,275 6,133 4,429 6,273 6,164 9,696 7,956 8,163 3,461

Primary or secondary school 4,616 522 615 830 580 430 863 591 Q

College or university 4,068 357 494 981 623 229 380 760 Q

Office complex 3,456 371 Q Q 324 1,224 569 513 Q

Retail complex 5,159 Q 275 539 627 1,004 934 1,070 Q

Storage complex 3,212 Q Q Q Q 538 820 675 Q

Religious campus or complex 1,932 382 257 298 248 241 Q 262 Q

Health care complex 3,362 Q 255 310 891 368 546 405 378

Lodging or resort complex 1,295 Q Q Q Q 322 Q Q Q

Transportation complex 554 Q Q Q Q Q Q Q Q

Government complex 2,107 578 Q Q 236 292 Q Q Q

Other 5,057 651 372 472 677 745 892 828 419

Predominant exterior wall material

Brick, stone, or stucco 40,463 6,832 4,319 5,239 4,643 5,928 5,586 5,612 2,304

Concrete (block or poured) 20,726 1,394 2,167 3,046 3,012 4,001 2,796 2,976 1,334

Concrete panels 8,693 Q Q 551 1,203 1,987 2,011 2,026 593

Siding or shingles 5,750 1,203 341 465 631 955 826 841 487

Metal panels 8,673 Q 294 750 1,126 1,793 2,028 1,680 839

Window glass 1,340 N Q Q Q 333 Q 241 Q

Other 856 Q Q Q Q Q Q Q Q

No one major type 592 Q Q Q Q Q Q Q Q
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Predominant roof material

Metal surfacing 15,916 1,280 710 982 1,720 2,523 3,593 3,447 1,662

Synthetic or rubber 25,817 2,963 2,362 3,522 2,976 4,113 3,641 4,013 2,226

Built-up 21,835 2,221 1,819 3,170 3,491 4,374 3,018 2,812 930

Slate or tile shingles 4,306 981 664 557 335 535 257 828 150

Wooden materials (including

shingles) 1,139 163 Q 197 150 Q Q Q Q

Asphalt, fiberglass, or 

other shingles 15,104 2,013 1,486 1,634 1,699 2,875 2,621 2,152 624

Concrete 1,642 Q Q Q Q 298 321 Q Q

Other 678 Q Q Q Q Q Q Q Q

No one major type 657 Q Q Q Q Q Q Q N

Roof characteristics

Roof tilt

Flat 49,623 4,904 4,782 7,365 7,317 9,035 6,768 6,561 2,891

Shallow pitch 23,853 2,596 1,304 1,965 2,490 4,284 4,223 5,130 1,861

Steeper pitch 13,617 2,508 1,295 1,033 1,039 1,911 2,813 2,047 971

Cool roof 19,630 1,450 1,418 2,248 2,307 3,492 3,218 3,313 2,185

Renovations in buildings

constructed before 2008

(more than one may apply)

Any type of renovation 42,216 6,715 4,677 6,844 6,207 8,595 5,588 3,589 N

Addition or annex 13,022 1,268 1,728 2,291 1,949 2,128 2,314 1,343 N

Reduction in floorspace 1,753 Q Q 255 505 362 Q Q N

Roof replacement 20,917 3,384 2,493 3,908 3,826 4,188 2,167 950 N

Exterior wall replacement 4,230 773 674 741 634 517 397 494 N

Interior wall reconfiguration 21,340 3,454 2,204 3,254 3,361 4,456 2,420 2,192 N

Window replacement 12,265 3,221 1,794 2,336 1,728 1,736 656 793 N

HVAC equipment upgrade 26,779 4,317 3,192 4,504 4,421 5,620 2,769 1,956 N

Lighting upgrade 25,503 4,142 3,116 4,448 3,744 5,299 2,814 1,940 N

Electrical upgrade 16,160 3,372 2,347 2,940 2,265 2,516 1,382 1,339 N

Plumbing system upgrade 13,828 2,903 1,662 2,473 1,881 2,259 1,262 1,387 N

Insulation upgrade 7,607 1,458 869 1,243 1,187 1,133 749 969 N

Fire, safety, or security upgrade 17,196 3,034 2,004 3,035 2,876 3,288 1,620 1,339 N

Structural upgrade 3,913 756 307 645 530 562 495 618 N

Other 848 Q Q Q Q Q Q Q N

No renovations 39,154 3,293 2,705 3,518 4,638 6,636 8,215 10,149 N

Buildings constructed 2008 or later 5,723 N N N N N N N 5,723
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Energy sources 

(more than one may apply)

Electricity 84,869 9,667 7,208 10,198 10,556 14,791 13,118 13,678 5,653

Natural gas 58,725 6,112 5,393 7,553 7,979 9,887 9,162 8,819 3,821

Fuel oil 20,200 2,546 1,530 2,407 2,614 3,806 3,201 2,964 1,133

District heat 5,964 1,428 446 1,002 930 449 642 866 Q

District chilled water 4,608 601 203 923 811 310 664 915 Q

Propane 7,706 585 525 921 880 1,214 1,339 1,682 559

Other 3,826 455 415 490 499 591 572 598 Q

Space-heating energy sources

(more than one may apply)

Electricity 49,030 4,611 3,836 5,387 5,931 9,378 7,947 8,258 3,683

Natural gas 49,511 5,172 4,908 6,574 6,549 7,995 7,613 7,212 3,488

Fuel oil 4,351 1,173 616 695 590 421 370 393 Q

District heat 5,925 1,411 446 1,002 930 446 642 856 Q

Propane 3,067 319 203 388 425 330 539 653 Q

Other 1,010 211 Q Q Q Q Q Q Q

Primary space-heating 

energy source

Electricity 26,205 1,786 1,414 2,394 2,988 5,760 4,634 5,086 2,142

Natural gas 42,988 4,756 4,453 5,802 5,484 6,868 6,478 6,240 2,908

Fuel oil 2,542 870 378 292 Q Q 258 Q Q

District heat 5,797 1,411 439 995 930 441 534 856 Q

Propane 1,948 199 Q Q 293 208 425 309 Q

Other 598 Q Q Q Q Q Q Q Q

Cooling energy sources 

(more than one may apply)

Electricity 76,034 7,989 6,569 8,962 9,440 13,830 11,924 12,185 5,135

Natural gas 732 Q Q Q Q Q Q Q Q

District chilled water 4,608 601 203 923 811 310 664 915 Q

Water-heating energy sources

(more than one may apply)

Electricity 42,755 4,215 2,829 4,423 4,854 8,845 6,946 7,791 2,852

Natural gas 39,523 3,635 3,659 5,654 5,625 6,263 6,084 5,968 2,635

Fuel oil 1,911 471 299 366 Q Q Q Q Q

District heat 4,551 1,215 287 828 718 200 442 Q Q

Propane 1,575 Q Q Q Q 312 334 260 Q

Cooking energy sources 

(more than one may apply)

Electricity 25,151 2,816 1,948 2,862 2,990 4,342 4,293 4,068 1,831

Natural gas 24,770 2,168 2,274 3,360 3,265 4,168 4,387 3,736 1,410

Propane 2,001 Q 196 Q 262 360 452 266 Q
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Energy end uses 

(more than one may apply)

Buildings with space heating 80,078 9,110 6,895 9,730 10,045 13,723 12,389 12,679 5,505

Buildings with cooling 79,294 8,302 6,679 9,634 10,031 14,011 12,402 13,010 5,225

Buildings with water heating 79,015 8,702 6,410 9,699 10,158 13,831 12,209 12,844 5,162

Buildings with cooking 38,546 4,205 3,409 4,644 4,837 6,545 6,517 6,015 2,375

Buildings with manufacturing 5,078 670 575 497 828 969 396 856 Q

Buildings with electricity

generation 25,642 1,806 1,523 3,083 3,145 4,690 4,184 4,941 2,269

Percent of floorspace heated

Not heated 7,015 898 486 633 800 1,507 1,414 1,060 218

1 to 50 10,130 1,212 927 1,094 1,378 2,091 1,417 1,463 547

51 to 99 14,650 2,091 1,358 1,407 1,474 2,991 2,487 2,177 664

100 55,298 5,807 4,610 7,228 7,193 8,641 8,485 9,040 4,294

Percent of floorspace cooled

Not cooled 7,799 1,707 702 728 815 1,220 1,401 729 498

1 to 50 18,891 2,563 1,748 2,711 2,400 3,285 2,445 2,714 1,026

51 to 99 22,728 2,862 2,287 2,731 2,665 3,805 4,184 3,145 1,050

100 37,676 2,877 2,644 4,193 4,966 6,921 5,774 7,151 3,150

Percent lit when open

Zero 322 Q Q Q Q Q Q Q Q

1 to 50 12,628 2,162 1,351 1,266 1,313 2,222 1,395 2,065 854

51 to 99 34,814 3,722 3,215 4,594 4,445 6,151 4,726 5,918 2,043

100 35,726 3,414 2,494 4,174 4,549 6,294 6,680 5,485 2,637

Building never open/electricity 

not used 3,603 698 312 312 536 533 954 Q Q

Percent lit during off hours

Zero 24,746 3,449 2,135 2,730 2,710 4,244 3,590 3,943 1,946

1 to 50 50,753 5,454 4,510 6,228 6,516 9,083 7,752 8,076 3,134

51 to 100 6,926 675 479 1,111 963 972 1,194 1,222 310

Building always open with 

no "off hours" 2,443 Q Q Q 367 492 583 438 Q

Electricity not used 2,225 342 174 Q 290 440 685 Q Q

Heating equipment (more than one 

may apply)

Heat pumps 11,846 1,115 907 1,295 1,198 2,386 2,136 1,982 826

Furnaces 8,654 917 685 1,168 1,345 1,763 1,266 1,066 442

Individual space heaters 20,766 3,159 2,277 2,586 2,923 3,424 2,996 2,453 948

District heat 5,925 1,411 446 1,002 930 446 642 856 Q

Boilers 22,443 3,237 2,659 3,506 2,763 2,973 2,970 3,031 1,303

Packaged heating units 49,188 3,968 3,715 5,670 6,156 9,037 8,544 8,356 3,741

Other 1,574 Q Q Q Q Q 397 Q Q
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Cooling equipment (more than one 

may apply)

Residential-type central air 

conditioners 14,765 2,066 996 2,075 2,044 2,503 2,386 1,907 786

Heat pumps 12,538 1,108 1,097 1,300 1,330 2,556 2,214 1,995 939

Individual air conditioners 12,420 2,493 1,485 1,740 1,649 1,768 1,425 1,358 503

District chilled water 4,608 601 203 923 811 310 664 915 Q

Central chillers 17,041 1,774 1,755 2,052 2,371 3,210 2,276 2,433 1,169

Packaged air conditioning units 45,153 4,141 3,674 5,552 5,445 8,585 7,222 7,644 2,890

Swamp coolers 1,918 181 Q 299 207 267 344 349 Q

Other 328 Q Q Q Q Q Q Q N

Main equipment replaced since 1990 

(more than one may apply)

Heating 27,558 4,694 4,000 5,192 5,885 7,786 N N N

Cooling 30,702 5,173 4,559 5,850 6,274 8,846 N N N

Water-heating equipment

Centralized system 47,534 5,205 4,305 6,252 6,298 7,338 7,417 7,543 3,176

Distributed system 12,688 1,269 943 1,005 1,773 2,888 1,724 2,152 933

Combination of centralized and 

distributed system 18,793 2,228 1,162 2,442 2,087 3,605 3,069 3,148 1,053

Lighting equipment types 

(more than one may apply)

Incandescent 38,406 5,042 3,494 4,629 5,560 6,972 5,494 5,619 1,595

Standard fluorescent 80,081 8,752 6,860 9,857 9,992 14,263 12,267 13,019 5,070

Compact fluorescent 53,816 6,060 4,340 6,463 6,913 9,199 8,327 8,941 3,574

High-intensity discharge 23,396 2,099 1,785 2,525 3,311 4,591 4,127 3,843 1,116

Halogen 28,059 3,156 2,028 2,948 3,418 5,124 4,364 5,093 1,929

LED 22,071 2,272 1,306 2,224 2,632 4,374 3,489 4,028 1,747

Other 446 Q N Q Q Q Q Q Q

Refrigeration equipment

(more than one may apply)

Any refrigeration 73,645 7,854 6,269 8,963 9,062 12,812 11,609 12,081 4,995

Walk-in units 28,361 2,258 2,104 3,574 4,015 5,184 4,937 4,575 1,715

Cases or cabinets 28,719 2,759 1,869 3,183 4,079 4,816 4,817 4,856 2,340

Large cold storage areas 4,171 Q Q 387 497 829 688 937 Q

Commercial ice makers 32,734 2,336 2,350 3,650 4,044 6,287 5,983 5,644 2,441

Residential-type or compact units 62,381 6,572 5,336 7,745 7,772 10,950 9,498 10,132 4,376

Vending machines 43,936 3,283 3,648 5,235 5,659 8,021 7,222 7,758 3,109

No refrigeration 13,448 2,154 1,112 1,399 1,784 2,418 2,194 1,658 728
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Office equipment

(more than one may apply)

Desktop computers 77,063 8,086 6,423 9,461 9,538 13,653 12,031 12,695 5,176

With flat screen monitors 76,160 7,893 6,329 9,299 9,404 13,558 11,934 12,584 5,159

With multiple monitors 30,946 2,607 2,218 3,169 3,901 6,209 5,188 5,238 2,417

Laptop computers 63,486 6,439 5,438 8,082 7,976 11,484 9,420 10,524 4,122

Dedicated servers 53,369 4,993 4,087 6,039 6,818 10,182 8,504 9,229 3,518

Laser printers 54,256 5,759 4,149 6,535 6,427 9,739 8,440 9,494 3,712

Inkjet printers 36,235 3,794 3,421 4,690 4,710 6,107 5,686 5,401 2,426

FAX machines 66,682 6,756 5,372 7,833 8,319 12,226 10,576 11,289 4,310

Photocopiers 59,277 6,058 4,801 7,324 7,421 10,637 9,117 10,088 3,830

Number of desktop computers

None 10,030 1,922 958 901 1,308 1,578 1,772 1,044 547

1 to 4 15,669 2,489 1,752 1,977 1,854 2,329 1,940 2,241 1,087

5 to 9 9,422 792 569 1,261 1,299 1,675 1,659 1,388 778

10 to 19 9,388 526 704 1,163 1,023 1,542 1,870 2,005 556

20 to 49 13,094 971 882 1,362 1,428 2,839 2,253 2,122 1,237

50 to 99 8,284 954 844 1,000 969 1,427 1,294 1,410 Q

100 to 249 9,728 1,001 826 1,260 1,197 1,491 1,161 2,207 585

250 or more 11,478 1,354 847 1,438 1,768 2,348 1,854 1,322 547

Number of laptop computers

None 23,607 3,570 1,943 2,280 2,870 3,746 4,383 3,215 1,600

1 to 4 21,161 2,545 1,772 2,846 2,686 3,394 2,922 3,293 1,702

5 to 9 8,345 540 670 1,130 1,227 1,587 1,519 1,323 Q

10 to 19 8,343 480 835 687 902 1,835 1,182 1,714 708

20 to 49 9,643 922 914 1,346 1,078 1,697 1,345 1,900 Q

50 to 99 5,234 760 413 591 600 919 702 787 462

100 to 249 5,217 652 206 1,006 646 905 839 819 Q

250 or more 5,542 539 628 476 837 1,146 911 688 317

Number of dedicated servers

None 33,724 5,015 3,295 4,324 4,028 5,049 5,299 4,510 2,205

1 to 4 34,097 3,288 2,749 4,151 4,286 5,663 5,477 5,855 2,628

5 to 9 6,241 401 471 627 920 1,346 1,025 1,149 Q

10 to 19 5,711 517 455 421 470 1,585 1,000 1,088 Q

20 to 49 3,758 Q Q 254 583 1,061 600 607 Q

50 or more 3,562 478 265 586 559 526 403 530 Q

Number of photocopiers

None 27,816 3,951 2,580 3,038 3,425 4,593 4,686 3,651 1,892

One 17,080 1,658 1,626 2,296 2,253 2,728 2,514 2,974 1,030

2 to 4 20,312 1,843 1,540 2,619 2,132 3,624 3,252 3,736 1,567

5 to 9 8,863 706 861 936 1,033 1,771 1,385 1,611 Q

10 or more 13,022 1,851 774 1,473 2,003 2,514 1,966 1,767 674
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Number of TVs or video displays

None 24,339 3,652 2,294 2,825 2,798 4,300 3,699 3,122 1,648

One 9,990 1,256 1,018 1,070 1,220 1,675 1,729 1,623 399

2 to 4 16,465 2,034 1,269 2,089 2,087 2,475 2,073 3,147 1,291

5 to 9 8,148 854 798 776 806 1,313 1,419 1,570 613

10 to 19 8,168 931 582 1,010 1,257 1,665 1,340 958 426

20 to 49 8,058 528 549 983 1,044 1,592 1,441 1,306 616

50 to 99 4,378 Q 492 582 438 613 848 874 Q

100 or more 7,547 521 379 1,029 1,197 1,597 1,255 1,139 430

Food preparation or serving areas 

in non-food service buildings

(more than one may apply)

Snack bar or concession stand 9,884 978 592 1,291 1,305 1,775 1,547 1,738 658

Fast food or small restaurant 9,787 672 301 1,040 1,280 2,202 1,837 1,729 727

Cafeteria or large restaurant 15,222 1,297 1,467 1,961 2,162 2,742 2,478 2,287 828

Commercial kitchen/

food preparation area 16,150 1,525 1,356 2,113 2,198 2,621 2,426 2,861 1,049

Small kitchen area 14,054 2,018 1,413 1,520 1,733 2,374 2,030 2,190 776

Separate computer areas

(more than one may apply)

Data center or server farm 11,105 911 670 1,281 1,643 2,408 1,632 1,922 637

Computer-based training room 17,723 1,762 1,429 2,025 2,254 2,465 3,228 3,354 1,208

Student or public computer center 14,341 1,086 1,633 2,365 1,750 2,085 1,830 2,682 910

HVAC conservation features 

(more than one may apply)

Economizer cycle 30,749 2,661 2,446 3,845 3,834 5,081 5,067 5,075 2,739

Regular HVAC maintenance 69,244 6,583 5,533 8,425 8,633 12,410 10,844 11,929 4,887

Building automation system (BAS)2 37,051 2,904 2,585 4,306 4,153 6,279 6,312 7,226 3,285

Window and interior lighting 

features (more than one may

apply)

Multipaned windows 60,362 5,727 4,717 6,562 6,572 10,740 10,190 11,041 4,813

Tinted window glass 45,025 2,966 3,151 5,045 5,890 9,467 7,535 7,954 3,016

Reflective window glass 15,908 948 1,125 1,460 1,767 3,421 2,670 3,037 1,480

External overhangs or awnings 32,188 2,265 2,664 4,153 4,657 5,542 5,329 5,478 2,100

Skylights or atriums 22,261 1,539 1,489 2,535 2,986 5,042 3,672 3,747 1,249

Light scheduling 30,263 2,353 1,849 3,008 3,772 5,631 5,958 5,238 2,453

Occupancy sensors 35,871 3,288 2,629 3,827 4,170 6,317 5,716 6,825 3,098

Multi-level lighting or dimming 14,534 1,077 980 1,420 1,590 2,850 2,517 2,905 1,195

Daylight harvesting 6,114 460 342 629 674 1,089 974 1,235 710

Demand responsive lighting 4,738 330 206 464 688 1,084 710 901 Q

Building automation system (BAS) for 

lighting2 12,068 531 609 829 1,323 2,360 2,376 2,800 1,241
All

buildings

Before 

1946

1946 to 

1959

1960 to 

1969

1970 to 

1979

1980 to 

1989

1990 to 

1999

2000 to 

2007

2008 to 

2012

All buildings 87,093 10,008 7,381 10,362 10,846 15,230 13,803 13,739 5,723

Table B9. Year constructed, floorspace, 2012

Year constructed

Total floorspace (million square feet)

Equipment usage reduced when 

building not in full use 

(more than one may apply)

Heating 63,167 7,244 5,367 7,444 7,816 11,087 9,726 10,051 4,431

Cooling 62,516 6,737 5,120 7,164 8,045 11,139 9,711 10,399 4,203

Lighting 78,594 9,077 6,818 9,668 9,771 13,863 11,767 12,403 5,229

 1These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable 

Energy (EERE). 

 2

In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS) .

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

 N = No cases in reporting sample.

 Notes: ● Because of rounding, data may not sum to totals. ● See Guide to the 2012 CBECS Detailed Tables or CBECS Terminology for definition of terms used in 

these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from 

http://www.eia.gov/consumption/commercial/data/2012/

 Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings Energy 

Consumption Survey.