Table B9. Year Constructed, Floorspace for Non-Mall Buildings, 2003
	Total Floorspace (million square feet)
	All Buildings*	Year Constructed
	All Buildings*	1919 or Before	1920 to 1945	1946 to 1959	1960 to 1969	1970 to 1979	1980 to 1989	1990 to 1999	2000 to 2003

All Buildings* ...............................	64,783	3,769	6,871	7,045	8,101	10,772	10,332	12,360	5,533

Building Floorspace
(Square Feet)
1,001 to 5,000 ................................	6,789	490	796	860	690	966	1,149	1,324	515
5,001 to 10,000 ..............................	6,585	502	827	643	865	1,332	721	1,209	486
10,001 to 25,000 ............................	11,535	804	988	1,421	1,460	1,869	1,647	2,388	958
25,001 to 50,000 ............................	8,668	677	838	935	1,234	1,720	1,174	1,352	739
50,001 to 100,000 ..........................	9,057	491	641	927	1,483	1,146	1,390	2,058	921
100,001 to 200,000 ........................	9,064	Q	704	1,148	1,039	1,411	1,496	1,934	1,060
200,001 to 500,000 ........................	7,176	Q	1,288	569	947	1,243	1,237	984	609
Over 500,000 .................................	5,908	Q	790	541	382	1,085	1,518	1,111	Q

Principal Building Activity
Education .......................................	9,874	410	1,036	1,744	1,665	1,410	1,284	1,546	778
Food Sales .....................................	1,255	Q	Q	Q	Q	Q	188	281	Q
Food Service .................................	1,654	281	138	194	Q	227	182	327	Q
Health Care ....................................	3,163	Q	203	445	395	754	522	578	185
Inpatient .......................................	1,905	Q	Q	318	304	556	358	161	Q
Outpatient ....................................	1,258	Q	Q	Q	Q	197	164	416	Q
Lodging ..........................................	5,096	Q	Q	276	744	840	980	807	489
Retail (Other Than Mall)..................	4,317	220	445	360	543	900	361	1,080	407
Office .............................................	12,208	749	1,186	917	1,335	2,162	3,296	1,913	650
Public Assembly ............................	3,939	323	353	780	408	594	448	734	301
Public Order and Safety ................	1,090	Q	Q	Q	Q	Q	Q	327	Q
Religious Worship ..........................	3,754	586	334	603	502	412	414	566	338
Service ..........................................	4,050	Q	473	440	447	996	511	777	263
Warehouse and Storage ...............	10,078	254	1,208	567	1,051	1,462	1,501	2,723	1,312
Other ..............................................	1,738	Q	Q	Q	Q	Q	Q	492	Q
Vacant ...........................................	2,567	Q	465	Q	Q	Q	Q	Q	Q

Census Region
Northeast .......................................	12,905	1,406	2,504	2,094	1,737	1,723	1,374	1,370	698
Midwest .........................................	17,080	1,552	2,099	2,027	2,229	3,237	1,949	2,746	1,240
South .............................................	23,489	516	1,348	1,795	2,538	3,726	4,768	6,241	2,557
West ..............................................	11,310	295	920	1,128	1,597	2,086	2,241	2,004	1,038

Climate Zone: 30-Year Average
Under 2,000 CDD and --
More than 7,000 HDD ...................	10,622	1,227	1088	1075	1,405	2,215	1031	1,838	742
5,500-7,000 HDD .........................	17,335	1,407	2,217	2,445	2,302	2,967	2,357	2,492	1,148
4,000-5,499 HDD .........................	11,504	731	1,960	1,388	1,509	1,729	1,673	1,602	912
Fewer than 4,000 HDD ................	15,739	281	1,218	1,596	1,883	2,508	3,115	3,741	1,396
2,000 CDD or More and --
Fewer than 4,000 HDD ................	9,584	Q	388	541	1,001	1,354	2,156	2,687	1,334

Number of Floors
One ................................................	25,981	348	1,730	2,771	3,474	4,484	3,856	6,577	2,742
Two ...............................................	16,270	913	1,539	2,095	2,188	2,977	2,336	2,976	1,245
Three .............................................	7,501	856	1,396	1,218	795	946	724	960	605
Four to Nine ...................................	10,085	1,393	1,525	485	1,013	1,570	1,924	1,485	690
Ten or More ...................................	4,947	Q	681	475	630	797	1,492	Q	Q

Elevators and Escalators
(more than one may apply)
Any Elevators ................................	24,617	1,624	2,976	1,989	2,914	3,790	4,941	4,093	2,290
Number of Elevators
One ..............................................	8,221	588	998	806	1,164	1,103	981	1,687	893
Two to Five ..................................	10,129	815	1,334	672	1,123	1,501	2,168	1,577	939
Six or More ..................................	6,268	Q	644	512	626	1,187	1,792	830	Q
Any Escalators ..............................	2,350	Q	Q	Q	Q	Q	Q	Q	Q

Number of Workers (main shift)
Fewer than 5 .................................	15,492	1,262	2,211	1,897	1,967	2,456	1,625	2,644	1,431
5 to 9 ..............................................	6,166	524	608	634	642	1,016	1,035	1,206	500
10 to 19 ..........................................	7,803	481	1,053	896	825	1,331	889	1,565	763
20 to 49 ..........................................	10,989	713	909	1,536	1,408	1,886	1,274	2,289	973
50 to 99 ..........................................	7,934	400	668	712	1,201	1,092	1,432	1,557	871
100 to 249 ......................................	6,871	Q	518	604	1,145	1,230	1,403	1,338	471
250 or More ...................................	9,528	Q	903	767	913	1,760	2,674	1,760	524

Weekly Operating Hours
Fewer than 40 ...............................	6,863	811	841	888	990	977	830	900	625
40 to 48 ..........................................	11,622	563	1,339	1,725	1,200	1,987	1,891	2,103	813
49 to 60 ..........................................	15,723	898	2,058	1,608	2,217	2,522	2,643	2,749	1,028
61 to 84 ..........................................	10,334	615	1,009	1,105	1,103	1,778	1,734	1,950	1,041
85 to 167 ........................................	7,092	337	398	619	855	1,157	846	1,974	906
Open Continuously ........................	13,149	545	1,227	1,100	1,735	2,351	2,388	2,684	1,120

Ownership and Occupancy
Nongovernment Owned ................	49,421	3,119	4,879	4,994	5,660	8,167	8,564	9,529	4,508
Owner Occupied .........................	23,591	1,716	2,883	2,514	2,917	3,410	4,095	4,039	2,016
Nonowner Occupied ...................	23,914	1,357	1,597	2,252	2,452	4,315	4,336	5,289	2,315
Unoccupied ..................................	1,916	Q	Q	Q	Q	Q	Q	Q	Q
Government Owned ......................	15,363	650	1,992	2,050	2,441	2,605	1,768	2,830	1,025
Federal .........................................	1,956	Q	Q	Q	333	Q	Q	Q	Q
State ............................................	3,808	Q	282	377	819	738	566	713	Q
Local ............................................	9,599	440	1,020	1,551	1,289	1,572	1,094	1,758	874

Vacancy Status
Completely Vacant .........................	2,161	Q	465	Q	Q	Q	Q	Q	Q
Mostly Vacant ................................	406	Q	Q	Q	Q	Q	Q	Q	Q
Partially Vacant ..............................	12,382	994	1,623	1,063	1,342	1,751	2,599	1,953	1,056
Not At All Vacant ...........................	49,834	2,519	4,784	5,629	6,283	8,568	7,581	10,197	4,272

Number of Establishments
One ................................................	45,144	2,460	4,557	5,229	5,582	7,604	6,287	9,151	4,273
2 to 5 ..............................................	10,960	788	997	1,145	1,476	1,552	2,142	2,080	780
6 to 10 ............................................	1,958	Q	Q	Q	306	297	387	Q	Q
11 to 20 ..........................................	1,951	Q	Q	Q	Q	277	491	Q	Q
More than 20 ..................................	2,609	Q	Q	Q	Q	600	882	Q	Q
Currently Unoccupied ....................	2,161	Q	465	Q	Q	Q	Q	Q	Q

Predominant Exterior
Wall Material
Brick, Stone or Stucco ...................	32,817	2,987	5,611	4,324	4,157	4,469	4,435	4,960	1,874
Concrete (Block or Poured) ...........	10,832	178	784	1,734	1,936	1,964	1,546	1,615	1,075
Concrete Panels ............................	6,559	Q	Q	Q	557	1,362	1,676	1,740	1059
Siding or Shingles ..........................	4,120	518	325	343	409	595	522	1,179	228
Metal Panels ...................................	7,912	Q	Q	439	747	1,757	1,512	2,356	1016
Window Glass ...............................	1,024	N	Q	Q	Q	Q	289	Q	Q
Other ..............................................	1,113	Q	Q	Q	Q	Q	Q	Q	Q
No One Major Type ........................	406	Q	Q	Q	Q	Q	Q	Q	Q

Predominant Roof Material
Built-Up ..........................................	21,170	1,202	2,825	2,619	3,154	3,875	3,538	3,020	937
Shingles (Not Wood) ......................	10,195	1,171	878	1,298	1,304	1,415	1,450	1,829	849
Metal Surfacing ..............................	11,944	218	328	526	994	1,955	2,014	4,101	1,807
Synthetic or Rubber .......................	14,730	658	1,328	1,544	2,160	2,581	2,218	2,656	1,584
Slate or Tile ....................................	2,462	293	562	330	Q	341	239	388	Q
Wooden Materials ..........................	887	Q	Q	Q	Q	Q	Q	Q	Q
Concrete ........................................	2,231	N	Q	Q	Q	Q	365	Q	Q
Other ..............................................	598	N	N	Q	Q	Q	Q	Q	Q
No One Major Type ........................	565	Q	Q	Q	Q	Q	Q	Q	Q

Renovations in Buildings
Constructed Before 1980
(more than one may apply)
Any Type of Renovation
Since 1980 ....................................	17,844	1,861	3,353	3,932	3,805	4,893	N	N	N
Addition or Annex .......................	6,551	517	934	1,618	1,433	2,048	N	N	N
Reduction In Floorspace .............	1,012	Q	Q	Q	Q	Q	N	N	N
Cosmetic Improvements ..............	13,119	1,490	2,460	2,801	2,958	3,410	N	N	N
Wall or Roof Replacement ..........	8,070	700	1,549	1,919	1,910	1,993	N	N	N
Interior Wall
Re-Configuration ........................	8,518	823	1,713	1,655	1,957	2,370	N	N	N
HVAC Equipment Upgrade ..........	10,768	951	2,196	2,289	2,616	2,716	N	N	N
Lighting Upgrade .........................	10,275	1,076	2,141	2,266	2,359	2,433	N	N	N
Window Replacement .................	6,354	759	1,626	1,706	1,209	1,054	N	N	N
Plumbing System Upgrade ..........	7,144	730	1,671	1,611	1,603	1,527	N	N	N
Insulation Upgrade ......................	4,015	565	911	736	934	869	N	N	N
Other Renovation ........................	523	Q	Q	Q	Q	Q	N	N	N
No Renovations Since 1980 ..........	18,714	1,908	3,518	3,113	4,296	5,879	N	N	N
Building Newer than 1980 .............	28,225	N	N	N	N	N	10,332	12,360	5,533

Energy Sources (more than
one may apply)
Electricity .......................................	63,307	3,730	6,595	6,838	8,057	10,555	10,154	12,078	5,299
Natural Gas ....................................	43,468	2,759	4,679	4,659	5,635	7,659	6,469	8,177	3,431
Fuel Oil ...........................................	15,157	961	1,986	2,048	1,685	2,187	3,079	2,086	1,125
District Heat ...................................	5,443	294	1,207	705	853	588	888	705	Q
District Chilled Water ......................	2,853	Q	Q	359	446	456	531	804	Q
Propane .........................................	7,076	338	961	726	746	1,222	922	1,428	733
Other ..............................................	1,401	Q	Q	Q	281	401	Q	Q	Q

Energy End Uses (more than
one may apply)
Buildings with Space Heating ........	60,028	3,667	6,236	6,534	7,510	10,223	9,808	11,254	4,796
Buildings with Cooling ....................	56,940	2,891	4,919	6,045	7,125	9,973	9,836	11,304	4,848
Buildings with Water Heating .........	56,478	3,353	5,292	5,924	7,202	9,787	9,420	10,816	4,683
Buildings with Cooking ...................	22,237	1,362	2,242	3,156	2,669	3,431	3,677	3,597	2,104
Buildings with Manufacturing ........	3,138	Q	Q	Q	514	537	429	572	Q
Buildings with Electricity
Generation ....................................	12,821	232	852	1,210	1,442	2,275	3,238	2,401	1,171

Percent of Floorspace Heated
Not Heated .....................................	4,756	102	635	511	591	549	524	1,106	737
1 to 50 ............................................	6,850	635	819	506	557	998	1,054	1,370	911
51 to 99 ..........................................	8,107	676	1,066	869	867	1,248	1,361	1,480	540
100 .................................................	45,071	2,356	4,351	5,159	6,086	7,978	7,394	8,403	3,345

Percent of Floorspace Cooled
Not Cooled .....................................	7,843	878	1,952	999	976	799	496	1,056	686
1 to 50 ............................................	16,598	1,320	1,990	2,083	2,202	2,751	2,061	3,000	1,190
51 to 99 ..........................................	13,211	728	1,445	1,490	1,734	2,112	2,324	2,421	956
100 .................................................	27,132	842	1,484	2,473	3,189	5,110	5,450	5,883	2,701

Percent Lit When Open
Zero ...............................................	293	Q	Q	Q	Q	Q	Q	Q	Q
1 to 50 ............................................	10,203	1,264	1,417	1,295	1,456	1,117	1,193	1,653	808
51 to 99 ..........................................	18,288	1,132	1,731	2,026	2,437	3,487	3,077	3,074	1,324
100 .................................................	32,789	1,132	3,166	3,313	3,824	5,645	5,752	7,024	2,933
Building Never Open/
Electricity Not Used .......................	3,210	225	530	400	Q	516	291	494	389

Percent Lit When Closed
Zero ...............................................	17,385	1,538	1,962	1,699	1,988	2,965	2,065	3,309	1,860
1 to 50 ............................................	30,948	1,587	3,289	3,977	4,114	5,001	5,317	5,535	2,127
51 to 100 ........................................	2,093	Q	Q	Q	260	274	427	659	Q
Building Never Closed/
Electricity Not Used .......................	14,357	584	1,503	1,307	1,739	2,532	2,523	2,857	1,311

Heating Equipment (more
than one may apply)
Heat Pumps ....................................	8,814	Q	622	848	827	1,378	2,018	1,974	999
Packaged Heat Pumps .................	5,442	Q	Q	540	512	1,019	1,528	1,031	556
Split-System Heat Pumps .............	2,581	Q	Q	Q	336	426	451	738	Q
Individual Room Heat Pumps ........	2,691	Q	Q	283	Q	238	626	442	446
Furnaces .......................................	19,615	1,350	2,085	2,475	2,346	3,612	2,418	3,971	1,359
Individual Space Heaters ...............	12,545	782	1,427	1,442	1,469	2,393	1,799	2,433	800
District Heat ...................................	5,166	Q	1,203	661	786	573	780	691	Q
Boilers ............................................	20,423	1,926	2,744	3,081	2,957	3,339	2,803	2,257	1,316
Packaged Heating Units .................	18,021	390	979	1,422	1,993	3,443	3,816	4,067	1,911
Other ..............................................	3,262	Q	Q	Q	242	779	641	814	401

Cooling Equipment (more
than one may apply)
Residential-Type Central
Air Conditioners ............................	11,035	722	1,573	1,175	1,421	1,961	1,397	2,066	720
Heat Pumps ....................................	9,041	Q	653	888	794	1,392	2,055	2,038	1,064
Packaged Heat Pumps .................	5,426	Q	Q	527	479	997	1,522	987	582
Split-System Heat Pumps .............	2,606	Q	Q	Q	336	400	468	693	Q
Individual Room Heat Pumps ........	2,940	Q	Q	283	Q	298	698	581	460
Individual Air Conditioners .............	12,558	1,278