Fewer 

than 5 

Workers

5 to 9 

Workers

10 to 19 

Workers

20 to 49 

Workers

50 to 99 

Workers

100 to 249 

Workers

250 or

More

Workers

All Buildings ............................................... 4,657 2,376 807 683 487 174 90 39

Building Floorspace

(Square Feet)

1,001 to 5,000 .............................................. 2,348 1,567 482 226 66 Q Q N

5,001 to 10,000 ............................................ 1,110 511 180 249 144 Q Q N

10,001 to 25,000 .......................................... 708 250 105 146 157 46 Q Q

25,001 to 50,000 .......................................... 257 37 32 47 75 46 18 Q

50,001 to 100,000 ........................................ 145 7 6 12 36 45 29 10

100,001 to 200,000 ...................................... 59 2 3 Q 7 15 18 12

200,001 to 500,000 ...................................... 23 Q Q Q 2 2 7 10

Over 500,000 ............................................... 7 Q N Q Q Q 1 5

Principal Building Activity

Education .................................................... 327 85 59 73 64 32 11 4

Food Sales .................................................. 174 147 Q Q 4 Q Q Q

Food Service ............................................... 349 111 77 107 46 Q Q N

Health Care ................................................. 127 Q Q Q 13 12 5 4

 Inpatient ..................................................... 11 N QQQQ 2 3

 Outpatient .................................................. 116 Q Q Q 10 Q 3 Q

Lodging ........................................................ 153 85 20 20 14 10 4 Q

Mercantile .................................................... 667 321 124 99 70 32 18 3

 Retail (Other Than Mall) ............................ 534 319 102 63 35 5 Q Q

 Enclosed and Strip Malls ........................... 133 Q Q 36 35 26 9 3

Office ........................................................... 739 205 183 153 109 36 29 23

Public Assembly .......................................... 305 198 48 23 22 6 Q Q

Public Order and Safety .............................. 72 Q Q Q 28 Q Q Q

Religious Worship ....................................... 307 222 46 19 17 Q Q Q

Service ........................................................ 478 271 107 38 51 9 Q Q

Warehouse and Storage ............................. 603 389 81 73 32 21 6 2

Other ............................................................ 102 46 QQQQQQ

Vacant ......................................................... 253 244 QQQQNQ

Year Constructed

1919 or Before ............................................. 419 280 62 52 12 3 Q Q

1920 to 1945 ................................................ 499 331 65 58 29 8 5 3

1946 to 1959 ................................................ 763 405 135 107 84 22 7 3

1960 to 1969 ................................................ 665 316 124 95 78 27 21 5

1970 to 1979 ................................................ 774 344 174 110 81 43 15 8

1980 to 1989 ................................................ 846 371 126 159 116 44 19 11

1990 to 1999 ................................................ 690 330 121 102 87 27 16 7

Floors

One .............................................................. 2,879 1,591 497 407 271 78 31 5

Two .............................................................. 1,168 538 220 189 147 50 18 6

Three ........................................................... 420 194 71 62 42 26 20 4

Four to Nine ................................................. 178 52 19 26 27 18 19 16

Ten or More ................................................. 11 Q QQQQ 2 8

Census Region

Northeast ..................................................... 686 271 163 114 87 30 16 5

Midwest ....................................................... 1,188 668 224 136 95 32 24 9

South ........................................................... 1,762 970 220 273 204 51 32 12

West ............................................................ 1,021 468 199 160 101 61 19 12

Weekly Operating Hours

39 or Fewer ................................................. 978 806 93 33 41 Q Q Q

40 to 48 ........................................................ 1,156 550 219 205 123 36 18 4

49 to 60 ........................................................ 986 377 229 202 98 43 26 11

61 to 84 ........................................................ 664 251 152 113 87 36 17 8

85 to 167 ...................................................... 474 183 78 86 75 34 13 5

Open Continuously ...................................... 398 209 35 43 63 23 14 11

Table B10. Employment Size Category, Number of Buildings, 1999

Number of Buildings (thousand)

All

Buildings

Number of Workers

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 36
Fewer 

than 5 

Workers

5 to 9 

Workers

10 to 19 

Workers

20 to 49 

Workers

50 to 99 

Workers

100 to 249 

Workers

250 or

More

Workers

Table B10. Employment Size Category, Number of Buildings, 1999

Number of Buildings (thousand)

All

Buildings

Number of Workers

Ownership and Occupancy

Nongovernment Owned .............................. 4,135 2,187 709 587 413 135 73 33

 Owner Occupied ........................................ 2,801 1,463 489 435 279 64 48 24

 Nonowner Occupied .................................. 1,099 488 220 152 133 72 25 9

 Unoccupied ............................................... 236 236 N N NNNN

Government Owned .................................... 521 189 99 96 75 39 18 6

Vacancy Status

Completely Vacant ...................................... 140 140 N N NNNN

Mostly Vacant .............................................. 113 104 QQQQNQ

Partially Vacant ............................................ 697 351 121 73 78 35 26 14

Not At All Vacant ......................................... 3,707 1,781 686 609 404 138 64 26

Number of Establishments

One .............................................................. 3,528 1,891 610 520 344 89 54 19

2 to 5 ............................................................ 688 208 193 149 92 30 12 5

6 to 10 .......................................................... 114 Q Q 13 41 27 9 3

11 to 20 ........................................................ 48 Q Q Q 10 22 10 4

More than 20 ............................................... 27 Q Q Q Q 6 5 8

Currently Unoccupied .................................. 251 251 N N NNNN

Energy Sources (more than

one may apply)

Electricity ..................................................... 4,395 2,121 800 683 487 174 90 39

Natural Gas ................................................. 2,670 1,151 560 424 321 118 67 28

Fuel Oil ........................................................ 434 182 95 54 54 17 18 15

District Heat ................................................. 117 38 18 15 12 19 9 7

District Chilled Water ................................... 50 Q Q Q 3 10 4 5

Propane ....................................................... 451 215 71 74 73 11 6 2

Other ............................................................ 153 83 Q Q 23 5 Q 1

Energy End Uses (more than

one may apply)

Buildings with Space Heating ...................... 4,016 1,835 773 667 456 166 81 38

Buildings with Cooling ................................. 3,560 1,513 681 636 433 169 88 39

Buildings with Water Heating ...................... 3,239 1,312 643 586 417 159 85 36

Buildings with Cooking ................................ 857 287 131 172 154 65 30 18

Buildings with Manufacturing ....................... 151 Q 24 31 29 12 3 2

Buildings with Electricity

 Generation .................................................. 172 Q 11 19 49 19 23 16

Percent of Floorspace Heated

Not Heated .................................................. 641 541 34 16 32 8 Q Q

1 to 50 .......................................................... 576 326 155 57 21 14 2 1

51 to 99 ........................................................ 627 332 77 95 86 21 10 7

100 ............................................................... 2,813 1,176 541 515 349 132 69 31

Percent of Floorspace Cooled

Not Cooled .................................................. 1,097 862 126 47 54 5 Q Q

1 to 50 .......................................................... 1,012 416 270 170 99 36 19 3

51 to 99 ........................................................ 751 314 89 152 106 50 28 13

100 ............................................................... 1,796 784 322 314 228 83 42 23

Percent Lit When Open

Zero ............................................................. 34 Q Q Q NNNN

1 to 50 .......................................................... 835 558 135 102 32 7 Q Q

51 to 99 ........................................................ 1,228 487 216 210 190 78 35 12

100 ............................................................... 2,096 865 442 354 264 90 54 27

Building Never Open/

 Electricity Not Used .................................... 464 441 Q Q NNNN

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 37
Fewer 

than 5 

Workers

5 to 9 

Workers

10 to 19 

Workers

20 to 49 

Workers

50 to 99 

Workers

100 to 249 

Workers

250 or

More

Workers

Table B10. Employment Size Category, Number of Buildings, 1999

Number of Buildings (thousand)

All

Buildings

Number of Workers

Heating Equipment (more

than one may apply)

Heat Pumps ................................................. 492 162 73 131 81 28 11 6

Furnaces ...................................................... 1,460 742 370 164 141 24 17 3

Individual Space Heaters ............................ 894 419 188 125 86 46 20 10

District Heat ................................................. 96 30 14 10 12 15 8 7

Boilers ......................................................... 581 191 108 109 83 41 31 18

Packaged Heating Units .............................. 1,347 504 204 290 210 84 40 15

Other ............................................................ 185 105 25 12 18 14 5 5

Cooling Equipment (more

than one may apply)

Residential-Type Central

 Air Conditioners .......................................... 676 339 133 101 69 18 14 3

Heat Pumps ................................................. 485 169 68 122 79 29 10 8

Individual Air Conditioners ........................... 799 350 163 146 61 44 27 7

District Chilled Water ................................... 50 Q Q Q 3 10 4 5

Central Chillers ............................................ 130 28 9 11 22 18 21 20

Packaged Air Conditioning

 Units ........................................................... 1,953 724 354 383 295 118 54 24

Swamp Coolers ........................................... 136 69 26 Q 13 5 4 1

Other ............................................................ 49 Q Q Q 7 Q 3 1

Lighting Equipment Types

(more than one may apply)

Incandescent ............................................... 2,193 986 391 373 258 102 56 26

Standard Fluorescent .................................. 3,778 1,681 737 627 442 165 88 39

Compact Fluorescent .................................. 607 159 105 112 133 43 32 23

High Intensity Discharge .............................. 430 153 57 61 76 45 22 14

Halogen ....................................................... 572 176 105 84 120 40 31 17

Other ............................................................ 58 Q QQQQQQ

Personal Computers

None ............................................................ 1,617 1,326 190 72 QQQQ

1 to 4 ............................................................ 1,636 941 338 218 111 15 Q Q

5 to 9 ............................................................ 542 59 207 171 91 12 Q Q

10 to 19 ........................................................ 403 Q 63 174 89 36 6 Q

20 to 49 ........................................................ 247 Q Q 38 134 40 12 2

50 to 99 ........................................................ 105 Q Q Q 33 42 16 2

100 to 249 .................................................... 71 Q Q Q 6 22 32 7

250 or More ................................................. 36 Q N Q Q 3 6 26

Photocopiers

None ............................................................ 2,825 1,881 488 248 157 28 21 2

One .............................................................. 1,114 419 242 281 135 32 3 Q

2 to 4 ............................................................ 540 69 76 149 152 66 25 4

5 to 9 ............................................................ 102 Q Q Q 40 25 21 5

10 or More ................................................... 75 Q Q Q Q 23 21 28

Other Electronic Equipment

(more than one may apply)

Laser Printers .............................................. 1,949 511 370 418 373 156 83 38

FAX Machines ............................................. 2,807 926 591 573 422 166 89 39

Medical Diagnostic Equipment .................... 86 Q Q Q 10 Q 5 4

Lighting Conservation Features

(more than one may apply)

Specular Reflectors ..................................... 843 295 150 168 125 53 31 20

Electronic Ballasts ....................................... 2,167 891 400 390 272 124 57 33

Skylights or Atriums ..................................... 580 238 70 102 86 49 23 12

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 38
Fewer 

than 5 

Workers

5 to 9 

Workers

10 to 19 

Workers

20 to 49 

Workers

50 to 99 

Workers

100 to 249 

Workers

250 or

More

Workers

Table B10. Employment Size Category, Number of Buildings, 1999

Number of Buildings (thousand)

All

Buildings

Number of Workers

Off-Hour Equipment Reduction

(more than one may apply)

Heating ........................................................ 2,862 1,270 583 510 312 116 49 23

Cooling ........................................................ 2,622 1,055 556 507 301 117 62 23

Lighting ........................................................ 3,675 1,671 740 611 402 148 75 27

Office Equipment ......................................... 184 Q Q 30 73 45 20 8

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 39