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 ............................................... 4,657 2,348 1,110 708 257 145 59 23 7

Principal Building Activity

Education .................................................... 327 119 61 52 49 30 10 5 Q

Food Sales .................................................. 174 138 QQQQQNN

Food Service ............................................... 349 251 71 23 Q Q Q N N

Health Care ................................................. 127 64 Q 10 84221

 Inpatient ..................................................... 11 N N Q Q Q 2 2 1

 Outpatient .................................................. 116 64 Q Q 7 QQQQ

Lodging ........................................................ 153 Q 38 27 32 11 4 3 Q

Mercantile .................................................... 667 316 146 141 28 20 13 2 1

 Retail (Other Than Mall) ............................ 534 308 103 100 11 6 5 Q Q

 Enclosed and Strip Malls ........................... 133 Q 43 41 17 14 8 1 1

Office ........................................................... 739 422 141 95 33 29 13 5 2

Public Assembly .......................................... 305 124 88 64 15 11 2 1 Q

Public Order and Safety .............................. 72 Q Q 24 5 QQQQ

Religious Worship ....................................... 307 92 102 92 15 Q Q N Q

Service ........................................................ 478 291 131 41 11 QQQQ

Warehouse and Storage ............................. 603 266 157 97 46 22 11 4 1

Other ............................................................ 102 Q Q 14 QQQQQ

Vacant ......................................................... 253 153 73 17 7 QQQQ

Year Constructed

1919 or Before ............................................. 419 227 107 63 13 7 Q Q Q

1920 to 1945 ................................................ 499 270 102 90 20 9521

1946 to 1959 ................................................ 763 359 240 97 39 19 5 3 1

1960 to 1969 ................................................ 665 321 166 84 53 24 12 4 1

1970 to 1979 ................................................ 774 367 193 130 44 26 8 4 2

1980 to 1989 ................................................ 846 413 156 179 43 33 15 4 2

1990 to 1999 ................................................ 690 390 145 65 44 27 12 4 1

Floors

One .............................................................. 2,879 1,751 633 311 109 48 22 5 1

Two .............................................................. 1,168 475 317 238 81 40 12 4 1

Three ........................................................... 420 101 121 119 41 26 8 3 Q

Four to Nine ................................................. 178 Q 39 40 26 28 15 7 2

Ten or More ................................................. 11 N N Q Q Q 3 4 3

Census Region

Northeast ..................................................... 686 305 169 130 39 26 10 5 2

Midwest ....................................................... 1,188 620 273 188 48 35 16 7 2

South ........................................................... 1,762 916 413 260 93 49 20 8 2

West ............................................................ 1,021 506 255 130 76 35 13 4 1

Workers (main shift)

Fewer than 5 ................................................ 2,376 1,567 511 250 37 7 2 Q Q

5 to 9 ............................................................ 807 482 180 105 32 6 3 Q N

10 to 19 ........................................................ 683 226 249 146 47 12 Q Q Q

20 to 49 ........................................................ 487 66 144 157 75 36 7 2 Q

50 to 99 ........................................................ 174 Q Q 46 46 45 15 2 Q

100 to 249 .................................................... 90 Q Q Q 18 29 18 7 1

250 or More ................................................. 39 N N Q Q 10 12 10 5

Weekly Operating Hours

39 or Fewer ................................................. 978 605 244 105 17 4 Q Q Q

40 to 48 ........................................................ 1,156 557 342 153 58 36 8 2 Q

49 to 60 ........................................................ 986 471 225 177 63 34 11 4 1

61 to 84 ........................................................ 664 292 163 121 45 26 12 4 2

85 to 167 ...................................................... 474 240 76 91 27 21 13 4 1

Open Continuously ...................................... 398 183 60 62 47 24 12 7 3

Table B6. Building Size, Number of Buildings, 1999

Number of Buildings (thousand)

Building Size

All 

Buildings 

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 20
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

Table B6. Building Size, Number of Buildings, 1999

Number of Buildings (thousand)

Building Size

All 

Buildings 

Ownership and Occupancy

Nongovernment Owned .............................. 4,135 2,131 1,006 618 202 109 47 18 5

 Owner Occupied ........................................ 2,801 1,433 693 431 129 69 29 13 5

 Nonowner Occupied .................................. 1,099 548 250 172 68 39 17 4 1

 Unoccupied ............................................... 236 151 Q 15 QQQQQ

Government Owned .................................... 521 216 104 91 55 36 13 5 2

Vacancy Status

Completely Vacant ...................................... 140 Q Q 8 QQQQN

Mostly Vacant .............................................. 113 QQQQQQQQ

Partially Vacant ............................................ 697 282 200 107 51 33 15 6 3

Not At All Vacant ......................................... 3,707 1,913 837 584 198 110 44 17 4

Number of Establishments

One .............................................................. 3,528 1,897 802 506 184 88 34 14 3

2 to 5 ............................................................ 688 272 222 121 33 26 10 3 1

6 to 10 .......................................................... 114 Q 17 51 15 12 4 2 Q

11 to 20 ........................................................ 48 Q Q 12 15 12 6 2 Q

More than 20 ............................................... 27 QQQQ 6523

Currently Unoccupied .................................. 251 164 Q 17 QQQQQ

Energy Sources (more than

one may apply)

Electricity ..................................................... 4,395 2,186 1,036 688 253 143 59 23 7

Natural Gas ................................................. 2,670 1,193 684 448 176 103 42 18 5

Fuel Oil ........................................................ 434 220 74 65 28 22 13 9 4

District Heat ................................................. 117 Q Q 24 19 13 7 3 2

District Chilled Water ................................... 50 Q Q Q 77521

Propane ....................................................... 451 215 124 74 17 13 6 2 1

Other ............................................................ 153 93 Q 19 7 5 Q Q Q

Energy End Uses (more than

one may apply)

Buildings with Space Heating ...................... 4,016 1,982 946 629 237 137 57 22 7

Buildings with Cooling ................................. 3,560 1,680 828 611 223 134 55 21 7

Buildings with Water Heating ...................... 3,239 1,456 778 574 222 127 54 21 7

Buildings with Cooking ................................ 857 357 176 150 72 54 29 14 5

Buildings with Manufacturing ....................... 151 Q 36 28 11 9 3 1 Q

Buildings with Electricity

 Generation .................................................. 172 Q Q 24 22 26 13 9 4

Percent of Floorspace Heated

Not Heated .................................................. 641 366 164 79 20 8 3 1 Q

1 to 50 .......................................................... 576 230 194 102 29 12 5 2 1

51 to 99 ........................................................ 627 272 149 128 45 20 7 4 2

100 ............................................................... 2,813 1,479 603 399 162 105 45 16 5

Percent of Floorspace Cooled

Not Cooled .................................................. 1,097 668 282 98 34 10 4 2 Q

1 to 50 .......................................................... 1,012 352 292 242 69 37 13 7 1

51 to 99 ........................................................ 751 294 188 146 58 37 16 8 3

100 ............................................................... 1,796 1,034 348 222 96 60 27 7 2

Percent Lit When Open

Zero ............................................................. 34 QQQQNQNN

1 to 50 .......................................................... 835 351 279 147 40 13 4 2 0

51 to 99 ........................................................ 1,228 517 351 198 84 52 16 8 3

100 ............................................................... 2,096 1,156 367 316 124 77 39 13 4

Building Never Open/

 Electricity Not Used .................................... 464 294 113 45 8 QQQQ

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 21
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

Table B6. Building Size, Number of Buildings, 1999

Number of Buildings (thousand)

Building Size

All 

Buildings 

Heating Equipment (more

than one may apply)

Heat Pumps ................................................. 492 240 100 81 37 20 8 3 1

Furnaces ...................................................... 1,460 783 387 206 47 25 9 3 1

Individual Space Heaters ............................ 894 397 183 191 62 35 18 6 3

District Heat ................................................. 96 Q Q 19 17 13 7 3 2

Boilers ......................................................... 581 146 144 128 72 52 24 11 3

Packaged Heating Units .............................. 1,347 589 302 253 101 62 27 10 3

Other ............................................................ 185 98 Q 22 14 8321

Cooling Equipment (more

than one may apply)

Residential-Type Central

 Air Conditioners .......................................... 676 319 211 96 24 17 7 2 1

Heat Pumps ................... 485 240 95 80 35 22 9 4 1

Individual Air Conditioners ........................... 799 356 184 149 60 29 13 7 1

District Chilled Water ................................... 50 Q Q Q 77521

Central Chillers ............................................ 130 Q Q 17 25 28 16 9 4

Packaged Air Conditioning

 Units ........................................................... 1,953 857 423 387 141 89 37 14 4

Swamp Coolers ........................................... 136 79 25 13 9 7 2 Q Q

Other ............................................................ 49 Q Q Q 4 QQQQ

Main Equipment Replaced Since

1995 (more than one may apply)

Heating ........................................................ 984 469 250 160 61 32 9 4 1

Cooling ........................................................ 1,085 490 239 224 73 38 13 7 2

Lighting Equipment Types

(more than one may apply)

Incandescent ............................................... 2,193 980 548 391 138 83 33 14 5

Standard Fluorescent .................................. 3,778 1,795 904 628 230 136 56 22 7

Compact Fluorescent .................................. 607 198 149 109 62 48 24 12 4

High Intensity Discharge .............................. 430 80 94 111 60 43 25 11 5

Halogen ....................................................... 572 194 136 123 43 41 23 9 4

Other ............................................................ 58 QQQQQQQQ

Personal Computers

None ............................................................ 1,617 1,056 413 117 23 5 2 1 Q

1 to 4 ............................................................ 1,636 875 394 288 59 14 6 Q Q

5 to 9 ............................................................ 542 280 105 95 41 18 3 Q Q

10 to 19 ........................................................ 403 106 142 93 34 19 6 2 Q

20 to 49 ........................................................ 247 Q 53 78 46 26 12 2 1

50 to 99 ........................................................ 105 Q Q 32 34 25 7 3 1

100 to 249 .................................................... 71 Q Q Q 17 30 12 4 1

250 or More ................................................. 36 N N N Q 9 11 9 4

Photocopiers

None ............................................................ 2,825 1,706 691 309 81 29 7 3 Q

One .............................................................. 1,114 500 295 217 69 23 8 1 Q

2 to 4 ............................................................ 540 136 99 148 75 55 19 7 1

5 to 9 ............................................................ 102 Q Q 23 18 17 9 4 1

10 or More ................................................... 75 N N Q 14 21 17 9 5

Other Electronic Equipment

(more than one may apply)

Laser Printers .............................................. 1,949 732 424 412 181 121 52 20 7

FAX Machines ............................................. 2,807 1,203 661 509 213 136 56 22 7

Medical Diagnostic Equipment .................... 86 Q Q Q 64221

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 22
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

Table B6. Building Size, Number of Buildings, 1999

Number of Buildings (thousand)

Building Size

All 

Buildings 

Energy-Related Space Functions

(more than one may apply)

Commercial Food Preparation .................... 767 320 157 123 68 52 28 14 5

Activities with Large

 Amounts of Hot Water ................................ 698 232 142 149 87 47 25 12 4

Building Shell Conservation

Features (more than one

may apply)

Multipaned Windows ................................... 2,130 1,005 497 344 138 89 36 15 5

Tinted, Reflective, or

 Shading Glass ............................................ 1,283 507 329 214 110 69 35 13 5

HVAC Conservation Features

(more than one may apply)

Variable Air-Volume System ....................... 550 188 136 81 57 49 23 10 5

Economizer Cycle ........................................ 567 218 104 86 61 52 30 11 5

HVAC Maintenance ..................................... 2,786 1,217 627 521 209 129 55 21 7

Energy Management and

 Control System (EMCS) ............................. 460 150 59 81 65 56 31 13 5

Lighting Conservation Features

(more than one may apply)

Specular Reflectors ..................................... 843 389 186 123 64 46 20 10 4

Electronic Ballasts ....................................... 2,167 952 545 354 149 98 45 17 6

Skylights or Atriums ..................................... 580 200 128 116 62 39 20 9 4

Off-Hour Equipment Reduction

(more than one may apply)

Heating ........................................................ 2,862 1,387 743 432 160 89 36 11 4

Cooling ........................................................ 2,622 1,229 659 442 151 90 35 12 4

Lighting ........................................................ 3,675 1,794 913 592 197 115 45 15 4

Office Equipment ......................................... 184 Q Q 50 39 38 14 4 1

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 23