Table B18. Occupancy of Nongovernment-Owned and Government-Owned Buildings, Floorspace for Non-Mall Buildings, 2003
	Total Floorspace (million square feet)
	All Buildings*	Nongovernment-Owned Buildings				Government-Owned Buildings
		Nongov- ernment- Owned Buildings	Owner Occupied	Nonowner Occupied	Unocc- upied	Govern- ment- Owned Buildings	Federal	State	Local
All Buildings* ...............................	64,783	49,421	23,591	23,914	1,916	15,363	1,956	3,808	9,599
Building Floorspace
(Square Feet)
1,001 to 5,000 ................................	6,789	6,043	2,682	3,162	199	746	Q	206	498
5,001 to 10,000 ..............................	6,585	5,827	2,858	2,791	Q	758	Q	Q	620
10,001 to 25,000 ............................	11,535	9,738	5,028	4,530	Q	1,797	Q	604	1,044
25,001 to 50,000 ............................	8,668	6,659	3,197	3,141	Q	2,009	Q	531	1,327
50,001 to 100,000 ..........................	9,057	5,779	2,464	2,951	Q	3,278	Q	620	2,557
100,001 to 200,000 ........................	9,064	5,958	2,919	2,714	Q	3,106	Q	1,142	1,644
200,001 to 500,000 ........................	7,176	4,803	2,048	2,408	Q	2,373	545	408	1,420
Over 500,000 .................................	5,908	4,613	2,396	2,217	N	1,295	606	Q	Q
Principal Building Activity
Education .......................................	9,874	2,070	1,232	839	N	7,804	Q	1,671	6,067
Food Sales .....................................	1,255	1,243	541	702	N	Q	N	Q	Q
Food Service .................................	1,654	1,547	489	1,058	N	Q	N	Q	Q
Health Care ....................................	3,163	2,662	1,611	1,051	N	501	121	Q	168
Inpatient .......................................	1,905	1,557	911	646	N	348	Q	Q	Q
Outpatient ....................................	1,258	1,105	700	405	N	Q	Q	Q	Q
Lodging ..........................................	5,096	4,734	1,624	3,110	N	363	Q	Q	Q
Retail (Other Than Mall)..................	4,317	4,312	2,020	2,292	N	Q	Q	N	N
Office .............................................	12,208	10,515	5,571	4,944	N	1,693	482	531	680
Public Assembly ............................	3,939	2,189	1,204	984	N	1,751	Q	726	977
Public Order and Safety ................	1,090	Q	Q	Q	N	967	Q	Q	853
Religious Worship ..........................	3,754	3,754	2,804	950	N	N	N	N	N
Service ..........................................	4,050	3,018	1,680	1,338	N	1,032	533	Q	293
Warehouse and Storage ...............	10,078	9,371	3,736	5,635	N	Q	Q	Q	Q
Other ..............................................	1,738	1,574	774	800	N	164	Q	Q	Q
Vacant ...........................................	2,567	2,310	Q	Q	1,916	Q	Q	Q	Q
Year Constructed
Before 1920 ...................................	3,769	3,119	1,716	1,357	Q	650	Q	Q	440
1920 to 1945 ..................................	6,871	4,879	2,883	1,597	Q	1,992	Q	282	1,020
1946 to 1959 ..................................	7,045	4,994	2,514	2,252	Q	2,050	Q	377	1,551
1960 to 1969 ..................................	8,101	5,660	2,917	2,452	Q	2,441	333	819	1,289
1970 to 1979 ..................................	10,772	8,167	3,410	4,315	Q	2,605	Q	738	1,572
1980 to 1989 ..................................	10,332	8,564	4,095	4,336	Q	1,768	Q	566	1,094
1990 to 1999 ..................................	12,360	9,529	4,039	5,289	Q	2,830	Q	713	1,758
2000 to 2003 ..................................	5,533	4,508	2,016	2,315	Q	1,025	Q	Q	874
Census Region
Northeast .......................................	12,905	10,389	5,904	4,204	Q	2,517	Q	599	1,706
Midwest .........................................	17,080	12,470	6,171	5,539	760	4,610	Q	764	2,925
South .............................................	23,489	17,826	7,869	9,358	600	5,662	521	1,718	3,423
West ..............................................	11,310	8,736	3,648	4,813	Q	2,574	Q	727	1,545
Climate Zone: 30-Year Average
Under 2,000 CDD and --
More than 7,000 HDD ...................	10,622	8,063	3,894	3,972	Q	2,558	167	696	1,695
5,500-7,000 HDD .........................	17,335	12,350	6,510	5,030	810	4,985	1,135	709	3,141
4,000-5,499 HDD .........................	11,504	9,204	4,791	4,244	Q	2,300	Q	692	1,182
Fewer than 4,000 HDD ................	15,739	12,409	5,496	6,439	473	3,330	144	1,247	1,939
2,000 CDD or More and --
Fewer than 4,000 HDD ................	9,584	7,396	2,899	4,228	Q	2,189	Q	Q	1,642
Number of Floors
One ................................................	25,981	20,203	8,613	10,719	870	5,779	902	917	3,959
Two ...............................................	16,270	12,450	5,914	5,901	636	3,819	Q	842	2,834
Three .............................................	7,501	5,694	3,061	2,402	Q	1,807	Q	349	1,332
Four to Nine ...................................	10,085	6,678	3,822	2,677	Q	3,406	650	1,531	1,226
Ten or More ...................................	4,947	4,396	2,181	2,215	N	551	136	Q	Q
Elevators and Escalators
(more than one may apply)
Any Elevators ................................	24,617	17,048	8,806	7,777	Q	7,569	1,012	2,382	4,174
Number of Elevators
One ..............................................	8,221	4,926	2,507	2,181	Q	3,295	Q	774	2,292
Two to Five ..................................	10,129	7,177	3,670	3,307	Q	2,952	186	1,346	1,420
Six or More ..................................	6,268	4,945	2,629	2,289	Q	1,323	598	263	462
Any Escalators ..............................	2,350	1,839	1,001	832	Q	511	Q	Q	Q
Number of Workers (main shift)
Fewer than 5 .................................	15,492	13,316	5,546	5,854	1,916	2,176	Q	456	1,128
5 to 9 ..............................................	6,166	5,386	2,802	2,585	N	780	Q	Q	495
10 to 19 ..........................................	7,803	6,790	3,668	3,123	N	1,013	Q	277	678
20 to 49 ..........................................	10,989	7,940	3,499	4,441	N	3,049	Q	916	2,022
50 to 99 ..........................................	7,934	4,556	2,138	2,417	N	3,378	Q	803	2,340
100 to 249 ......................................	6,871	4,139	2,262	1,877	N	2,732	Q	681	1,956
250 or More ...................................	9,528	7,293	3,677	3,617	N	2,235	761	493	981
Weekly Operating Hours
Fewer than 40 ...............................	6,863	5,716	2,009	1,791	1,916	1,147	Q	Q	903
40 to 48 ..........................................	11,622	7,898	4,166	3,732	N	3,724	Q	667	2,980
49 to 60 ..........................................	15,723	11,414	5,978	5,435	N	4,310	Q	763	2,613
61 to 84 ..........................................	10,334	7,997	3,722	4,275	N	2,337	208	760	1,369
85 to 167 ........................................	7,092	5,305	2,582	2,724	N	1,786	Q	883	830
Open Continuously ........................	13,149	11,090	5,134	5,956	N	2,059	601	555	903
Vacancy Status
Completely Vacant .........................	2,161	1,916	N	N	1,916	Q	Q	Q	Q
Mostly Vacant ................................	406	394	Q	Q	N	Q	N	N	Q
Partially Vacant ..............................	12,382	10,331	4,935	5,395	N	2,051	352	297	1,403
Not At All Vacant ...........................	49,834	36,780	18,429	18,350	N	13,054	1,560	3,478	8,016
Number of Establishments
One ................................................	45,144	32,808	15,690	17,118	N	12,336	1,683	2,633	8,020
2 to 5 ..............................................	10,960	8,830	4,948	3,882	N	2,130	Q	866	1,177
6 to 10 ............................................	1,958	1,539	519	1,020	N	419	Q	Q	Q
11 to 20 ..........................................	1,951	1,791	1,149	642	N	Q	Q	Q	Q
More than 20 ..................................	2,609	2,536	1,285	1,251	N	Q	Q	Q	Q
Currently Unoccupied ....................	2,161	1,916	N	N	1,916	Q	Q	Q	Q
Multibuilding Facility
Not Part of a Multibuilding
Facility ...........................................	40,048	33,774	15,943	16,453	1,378	6,275	716	780	4,779
College or University ......................	3,480	1,224	905	318	N	2,256	N	2,169	Q
Primary or Secondary School ........	3,947	373	Q	243	N	3,574	Q	259	3,132
Office Complex ..............................	2,712	2,606	1,034	1,350	Q	Q	Q	Q	Q
Retail Complex ...............................	1,238	1,229	548	665	Q	Q	N	Q	N
Religious Campus or Complex .......	2,347	2,347	1,690	624	Q	N	N	N	N
Health Care Complex .....................	2,303	1,820	1,096	725	N	483	Q	227	153
Lodging or Resort Complex ...........	912	871	156	708	Q	Q	Q	N	Q
Government Complex ....................	2,014	Q	N	Q	N	1,977	Q	Q	928
Other ..............................................	5,783	5,140	2,088	2,792	Q	642	Q	Q	446
Predominant Exterior
Wall Material
Brick, Stone or Stucco ...................	32,817	22,216	11,555	9,903	758	10,601	1,364	2,631	6,605
Concrete (Block or Poured) ...........	10,832	8,760	3,947	4,341	472	2,073	215	396	1,461
Concrete Panels ............................	6,559	5,559	2,048	3,105	Q	1,000	Q	414	369
Siding or Shingles ..........................	4,120	3,587	1,772	1,738	Q	532	Q	Q	396
Metal Panels ...................................	7,912	7,291	3,318	3,874	Q	621	Q	Q	384
Window Glass ...............................	1,024	858	363	400	Q	Q	Q	Q	Q
Other ..............................................	1,113	909	499	404	Q	Q	Q	Q	Q
No One Major Type ........................	406	Q	Q	Q	Q	Q	N	Q	Q
Predominant Roof Material
Built-Up ..........................................	21,170	14,966	6,276	7,639	1,051	6,205	522	1,610	4,073
Shingles (Not Wood) ......................	10,195	8,595	4,557	3,787	Q	1,599	Q	329	1,141
Metal Surfacing ..............................	11,944	10,315	4,947	5,148	Q	1,629	Q	265	1,269
Synthetic or Rubber .......................	14,730	10,271	4,967	4,958	Q	4,458	592	1,254	2,612
Slate or Tile ....................................	2,462	1,994	1,029	928	Q	468	Q	Q	Q
Wooden Materials ..........................	887	720	294	421	Q	Q	Q	Q	Q
Concrete ........................................	2,231	1,578	825	753	N	Q	Q	Q	Q
Other ..............................................	598	514	Q	Q	Q	Q	Q	Q	Q
No One Major Type ........................	565	467	Q	Q	N	Q	Q	N	Q
Renovations in Buildings
Constructed Before 1980
(more than one may apply)
Any Type of Renovation
Since 1980 ....................................	17,844	12,881	6,930	5,531	Q	4,963	464	1,071	3,428
Addition or Annex .......................	6,551	4,589	2,573	1,905	Q	1,962	Q	411	1,430
Reduction In Floorspace .............	1,012	829	423	Q	N	Q	Q	Q	Q
Cosmetic Improvements ..............	13,119	9,663	5,136	4,325	Q	3,456	180	787	2,489
Wall or Roof Replacement ..........	8,070	5,614	2,953	2,629	Q	2,457	294	458	1,705
Interior Wall
Re-Configuration ........................	8,518	6,238	3,436	2,745	Q	2,280	Q	584	1,472
HVAC Equipment Upgrade ..........	10,768	7,265	4,236	3,027	Q	3,503	305	724	2,474
Lighting Upgrade .........................	10,275	6,981	3,872	3,077	Q	3,294	268	750	2,275
Window Replacement .................	6,354	4,526	2,644	1,753	Q	1,828	Q	318	1,419
Plumbing System Upgrade ..........	7,144	4,943	2,766	2,142	Q	2,201	Q	503	1,499
Insulation Upgrade ......................	4,015	2,776	1,867	876	Q	1,238	Q	Q	865
Other Renovation ........................	523	427	253	Q	N	Q	Q	Q	Q
No Renovations Since 1980 ..........	18,714	13,938	6,511	6,442	985	4,776	1,008	1,324	2,444
Building Newer than 1980 .............	28,225	22,601	10,150	11,940	511	5,624	484	1,413	3,726
Energy Sources (more than
one may apply)
Electricity .......................................	63,307	48,012	23,454	23,258	1,299	15,295	1,951	3,786	9,558
Natural Gas ....................................	43,468	33,317	16,548	15,886	883	10,150	1,083	2,438	6,630
Fuel Oil ...........................................	15,157	11,374	6,092	5,215	Q	3,783	381	962	2,441
District Heat ...................................	5,443	2,148	1,421	698	Q	3,295	Q	1,694	653
District Chilled Water ......................	2,853	1,069	711	323	Q	1,785	247	1,051	487
Propane .........................................	7,076	5,280	2,481	2,639	Q	1,796	Q	Q	1,030
Other ..............................................	1,401	1,033	611	396	Q	368	Q	Q	Q
Space-Heating Energy Sources
(more than one may apply)
Electricity .......................................	28,600	23,040	10,959	11,681	400	5,560	588	716	4,257
Natural Gas ....................................	36,959	28,612	14,264	13,526	821	8,347	782	1,814	5,751
Fuel Oil ...........................................	5,988	4,378	2,595	1,784	N	1,609	Q	328	1,167
District Heat ...................................	5,198	1,984	1,363	591	Q	3,214	Q	1,631	639
Propane .........................................	3,204	2,554	1,556	951	Q	649	Q	Q	440
Other ..............................................	842	718	451	241	Q	Q	Q	Q	Q
Primary Space-Heating
Energy Source
Electricity .......................................	15,996	13,204	5,410	7,618	Q	2,793	Q	276	2,444
Natural Gas ....................................	32,970	25,322	12,902	11,605	815	7,647	777	1,521	5,350
Fuel Oil ...........................................	3,818	2,805	1,764	1,041	N	1,013	Q	Q	685
District Heat ...................................	4,907	1,860	1,314	517	Q	3,047	Q	1,589	519
Propane .........................................	1,955	1,538	747	743	Q	417	Q	Q	301
Other ..............................................	382	335	228	Q	N	Q	N	N	Q
Cooling Energy Sources
(more than one may apply)
Electricity .......................................	54,321	42,323	20,954	20,829	540	11,998	1,163	2,553	8,282
Natural Gas ....................................	1,018	678	444	234	N	Q	Q	Q	Q
District Chilled Water ......................	2,853	1,069	711	323	Q	1,785	247	1,051	487
Water-Heating Energy Sources
(more than one may apply)
Electricity .......................................	27,490	22,196	11,450	10,431	Q	5,294	465	1,015	3,814
Natural Gas ....................................	28,820	21,116	10,036	10,611	Q	7,705	786	1,742	5,177
Fuel Oil ...........................................	1,880	1,201	880	321	N	679	Q	Q	445
District Heat ...................................	3,088	1,495	994	501	N	1,592	Q	1,074	Q
Propane .........................................	1,422	965	453	511	N	458	Q	Q	360
Cooking Energy Sources
(more than one may apply)
Electricity .......................................	13,161	8,072	4,183	3,884	Q	5,089	Q	622	4,166
Natural Gas ....................................	15,438	10,740	5,319	5,381	Q	4,698	502	652	3,544
Propane .........................................	1,460	926	472	453	Q	534	Q	Q	431
Energy End Uses (more than
one may apply)
Buildings with Space Heating ........	60,028	45,064	22,364	21,630	1,069	14,964	1,908	3,710	9,346
Buildings with Cooling ....................	56,940	43,341	21,640	21,160	540	13,599	1,357	3,542	8,701
Buildings with Water Heating .........	56,478	42,588	21,511	20,404	673	13,890	1,407	3,626	8,857
Buildings with Cooking ...................	22,237	14,480	7,694	6,740	Q	7,757	674	976	6,107
Buildings with Manufacturing ........	3,138	3,010	1,591	1,419	N	Q	Q	Q	Q