Table Data - New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Seattle-Tacoma-Bellevue, WA (MSA)
| Title | New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Seattle-Tacoma-Bellevue, WA (MSA) |
|---|---|
| Series ID | SEAT653BP1FHSA |
| Source | U.S. Census Bureau |
| Release | Housing Units Authorized By Building Permits (Not a Press Release) |
| Seasonal Adjustment | Seasonally Adjusted |
| Frequency | Monthly |
| Units | Units |
| Date Range | 1988-01-01 to 2025-10-01 |
| Last Updated | 2026-01-20 2:15 PM CST |
| Notes | This series represents the total number of building permits for 1-unit structure types. The 1-unit structure type is a single-family home or house. A single-family home or house types include fully detached, semidetached (semidetached, side-by-side), row houses, and townhouses. For attached units, each must be separated from the adjacent unit by a ground-to-roof wall in order to be classified as a single-family structure. These units also must not share heating/air-conditioning systems or utilities. Units built on top of one another and those built side-by-side that do not have a ground-to-roof wall and/or have common facilities (i.e., attic, basement, heating plant, plumbing, etc.) are not included under single-family structures. The Federal Reserve Bank of St. Louis seasonally adjusts this series by using the 'statsmodels' library from Python with default parameter settings. The package uses the U.S. Bureau of the Census X-13ARIMA-SEATS Seasonal Adjustment Program. More information on the 'statsmodels' X-13ARIMA-SEATS package can be found here. More information on X-13ARIMA-SEATS can be found here. Many series include both seasonally adjusted (SA) and not seasonally adjusted (NSA) data. Occasionally, updates to the data will not include sufficient seasonal factors to trigger a seasonal adjustment. In these cases, the NSA series will be updated normally; but the SA series will also be updated with the NSA data. The NSA series can be located here here. Some seasonally adjusted series may exhibit negative values because they are created from a seasonal adjustment process regardless of the actual meaning or interpretation of the given indicator. |
| DATE | VALUE |
|---|---|
| 1988-01-01 | 981.977765260231 |
| 1988-02-01 | 1047.440670030540 |
| 1988-03-01 | 1087.568670685700 |
| 1988-04-01 | 1059.979746574660 |
| 1988-05-01 | 1092.819297164120 |
| 1988-06-01 | 971.463401301161 |
| 1988-07-01 | 1048.879349918780 |
| 1988-08-01 | 1156.813278389900 |
| 1988-09-01 | 1133.951063985970 |
| 1988-10-01 | 1150.812503214970 |
| 1988-11-01 | 1322.508803101960 |
| 1988-12-01 | 1262.650788521330 |
| 1989-01-01 | 1123.731526101600 |
| 1989-02-01 | 1084.363089989420 |
| 1989-03-01 | 1168.280097491640 |
| 1989-04-01 | 1175.878900614220 |
| 1989-05-01 | 1254.549674387040 |
| 1989-06-01 | 1239.603108061470 |
| 1989-07-01 | 1240.574223008390 |
| 1989-08-01 | 1307.882954521920 |
| 1989-09-01 | 1324.057620481690 |
| 1989-10-01 | 1475.289708832050 |
| 1989-11-01 | 1611.067267468630 |
| 1989-12-01 | 1430.194737610820 |
| 1990-01-01 | 1551.144265474050 |
| 1990-02-01 | 1533.093371328550 |
| 1990-03-01 | 1317.523844555670 |
| 1990-04-01 | 1295.041531117320 |
| 1990-05-01 | 1166.095366518880 |
| 1990-06-01 | 1101.716150435190 |
| 1990-07-01 | 1050.403328045610 |
| 1990-08-01 | 1093.412981346870 |
| 1990-09-01 | 903.418310403877 |
| 1990-10-01 | 794.114610170904 |
| 1990-11-01 | 728.223203189223 |
| 1990-12-01 | 681.748847168501 |
| 1991-01-01 | 728.531020546485 |
| 1991-02-01 | 690.632634714773 |
| 1991-03-01 | 788.171021202533 |
| 1991-04-01 | 788.024136546964 |
| 1991-05-01 | 972.080230909338 |
| 1991-06-01 | 923.895510830298 |
| 1991-07-01 | 939.511174420450 |
| 1991-08-01 | 786.403804020432 |
| 1991-09-01 | 858.758095442214 |
| 1991-10-01 | 941.055144837113 |
| 1991-11-01 | 871.776465252436 |
| 1991-12-01 | 990.294179665148 |
| 1992-01-01 | 1042.279149067260 |
| 1992-02-01 | 1110.197347968920 |
| 1992-03-01 | 1057.816111135820 |
| 1992-04-01 | 1048.311901273280 |
| 1992-05-01 | 994.306112537958 |
| 1992-06-01 | 1058.677046201510 |
| 1992-07-01 | 1003.651898638720 |
| 1992-08-01 | 934.041494156344 |
| 1992-09-01 | 1072.482166766860 |
| 1992-10-01 | 984.853678376332 |
| 1992-11-01 | 1005.643683835490 |
| 1992-12-01 | 1180.513079032390 |
| 1993-01-01 | 922.875815368169 |
| 1993-02-01 | 923.516122158153 |
| 1993-03-01 | 915.816032597489 |
| 1993-04-01 | 1100.723263817420 |
| 1993-05-01 | 1022.729736714930 |
| 1993-06-01 | 1032.358134285370 |
| 1993-07-01 | 1117.955761868880 |
| 1993-08-01 | 1195.607405546850 |
| 1993-09-01 | 1174.338581442440 |
| 1993-10-01 | 1186.159293903010 |
| 1993-11-01 | 1259.403464047930 |
| 1993-12-01 | 1356.695210825360 |
| 1994-01-01 | 1301.181949707290 |
| 1994-02-01 | 1209.635465526970 |
| 1994-03-01 | 1256.043646425690 |
| 1994-04-01 | 1218.185295999490 |
| 1994-05-01 | 1165.556924967580 |
| 1994-06-01 | 1142.157136633110 |
| 1994-07-01 | 1157.457985777870 |
| 1994-08-01 | 1146.874686500770 |
| 1994-09-01 | 1156.965599874900 |
| 1994-10-01 | 1142.203608170530 |
| 1994-11-01 | 1038.131858803950 |
| 1994-12-01 | 996.210317164325 |
| 1995-01-01 | 983.294660657314 |
| 1995-02-01 | 1010.515066074180 |
| 1995-03-01 | 994.353252966579 |
| 1995-04-01 | 952.034827807933 |
| 1995-05-01 | 1045.314909512680 |
| 1995-06-01 | 1228.091997508020 |
| 1995-07-01 | 978.768369860127 |
| 1995-08-01 | 1050.974565256230 |
| 1995-09-01 | 925.816590881893 |
| 1995-10-01 | 1019.681677064620 |
| 1995-11-01 | 1166.047093422720 |
| 1995-12-01 | 1063.129809752700 |
| 1996-01-01 | 1092.645762496920 |
| 1996-02-01 | 1149.255088992720 |
| 1996-03-01 | 1123.107804369200 |
| 1996-04-01 | 1254.905403327740 |
| 1996-05-01 | 1119.045016435250 |
| 1996-06-01 | 1024.228371756230 |
| 1996-07-01 | 1064.997439798220 |
| 1996-08-01 | 1044.737020052060 |
| 1996-09-01 | 1018.771382048890 |
| 1996-10-01 | 1031.380646206360 |
| 1996-11-01 | 1092.214148598760 |
| 1996-12-01 | 1090.995565981850 |
| 1997-01-01 | 1232.241258422330 |
| 1997-02-01 | 1092.282869115170 |
| 1997-03-01 | 998.975286317565 |
| 1997-04-01 | 1118.360672585590 |
| 1997-05-01 | 1144.403860814210 |
| 1997-06-01 | 1154.157757499200 |
| 1997-07-01 | 1207.953760295160 |
| 1997-08-01 | 1150.456897179420 |
| 1997-09-01 | 1228.129066623400 |
| 1997-10-01 | 1257.606891007780 |
| 1997-11-01 | 1283.206323943730 |
| 1997-12-01 | 1269.562696422720 |
| 1998-01-01 | 1174.865871760080 |
| 1998-02-01 | 1224.718776380970 |
| 1998-03-01 | 1206.884815281910 |
| 1998-04-01 | 1243.569567969690 |
| 1998-05-01 | 1203.765243471410 |
| 1998-06-01 | 1282.888483928910 |
| 1998-07-01 | 1274.488554474330 |
| 1998-08-01 | 1149.088295121580 |
| 1998-09-01 | 1216.964023540860 |
| 1998-10-01 | 1233.559410052970 |
| 1998-11-01 | 1139.061342383990 |
| 1998-12-01 | 1154.653251586050 |
| 1999-01-01 | 1116.267250069790 |
| 1999-02-01 | 1078.721546871780 |
| 1999-03-01 | 1236.144571324640 |
| 1999-04-01 | 1217.574403892380 |
| 1999-05-01 | 1225.687315294210 |
| 1999-06-01 | 1199.017195636000 |
| 1999-07-01 | 1158.160762306110 |
| 1999-08-01 | 1216.769891925210 |
| 1999-09-01 | 1191.692899285100 |
| 1999-10-01 | 1130.859220289070 |
| 1999-11-01 | 1169.470833212550 |
| 1999-12-01 | 1178.929072574690 |
| 2000-01-01 | 1075.424633215340 |
| 2000-02-01 | 1107.775662427920 |
| 2000-03-01 | 1062.795315299250 |
| 2000-04-01 | 995.107690059716 |
| 2000-05-01 | 995.229030006567 |
| 2000-06-01 | 1013.685674644620 |
| 2000-07-01 | 967.844945243933 |
| 2000-08-01 | 1283.110007585360 |
| 2000-09-01 | 1060.085635495510 |
| 2000-10-01 | 1110.725091372860 |
| 2000-11-01 | 1073.982156872540 |
| 2000-12-01 | 1011.962598786950 |
| 2001-01-01 | 1174.726436083040 |
| 2001-02-01 | 1110.880468496780 |
| 2001-03-01 | 1218.527578377510 |
| 2001-04-01 | 1065.805787107080 |
| 2001-05-01 | 1067.620352708330 |
| 2001-06-01 | 1018.399099896760 |
| 2001-07-01 | 1006.687161298600 |
| 2001-08-01 | 1116.049127833050 |
| 2001-09-01 | 963.433309761657 |
| 2001-10-01 | 894.424377136551 |
| 2001-11-01 | 887.057785278116 |
| 2001-12-01 | 958.191888030770 |
| 2002-01-01 | 1107.864437608270 |
| 2002-02-01 | 1087.702963360450 |
| 2002-03-01 | 1058.950158018480 |
| 2002-04-01 | 1137.856738849440 |
| 2002-05-01 | 1164.532335057440 |
| 2002-06-01 | 1257.064968722520 |
| 2002-07-01 | 1274.819773110660 |
| 2002-08-01 | 1200.862608730800 |
| 2002-09-01 | 1119.221809045980 |
| 2002-10-01 | 1404.038713810540 |
| 2002-11-01 | 1486.476984498010 |
| 2002-12-01 | 1208.006865816440 |
| 2003-01-01 | 1276.733097148700 |
| 2003-02-01 | 1284.420198979020 |
| 2003-03-01 | 1146.683196550680 |
| 2003-04-01 | 1242.897144658360 |
| 2003-05-01 | 1234.773522927860 |
| 2003-06-01 | 1118.466954016730 |
| 2003-07-01 | 1354.591498944670 |
| 2003-08-01 | 1256.566820991220 |
| 2003-09-01 | 1341.791979024320 |
| 2003-10-01 | 1277.090493413880 |
| 2003-11-01 | 1253.425570773660 |
| 2003-12-01 | 1368.114491162650 |
| 2004-01-01 | 1235.813053160760 |
| 2004-02-01 | 1202.949577473100 |
| 2004-03-01 | 1257.937787344880 |
| 2004-04-01 | 1351.898609445840 |
| 2004-05-01 | 1271.667937786810 |
| 2004-06-01 | 1584.728855062930 |
| 2004-07-01 | 1242.419209010830 |
| 2004-08-01 | 1144.212272085360 |
| 2004-09-01 | 1315.503737157930 |
| 2004-10-01 | 1232.202833055000 |
| 2004-11-01 | 1384.401571923430 |
| 2004-12-01 | 1375.021736344720 |
| 2005-01-01 | 1422.584714537920 |
| 2005-02-01 | 1164.689068379350 |
| 2005-03-01 | 1416.068458624520 |
| 2005-04-01 | 1436.532412491650 |
| 2005-05-01 | 1423.100259701280 |
| 2005-06-01 | 1549.270635826120 |
| 2005-07-01 | 1422.221699656750 |
| 2005-08-01 | 1584.507459181460 |
| 2005-09-01 | 1523.401825978530 |
| 2005-10-01 | 1494.168580068030 |
| 2005-11-01 | 1649.306108514990 |
| 2005-12-01 | 1587.166191032260 |
| 2006-01-01 | 1348.742188741590 |
| 2006-02-01 | 1438.526550639490 |
| 2006-03-01 | 1390.784156311560 |
| 2006-04-01 | 1183.103959757000 |
| 2006-05-01 | 1266.118773077690 |
| 2006-06-01 | 1237.015382477510 |
| 2006-07-01 | 1161.822274132310 |
| 2006-08-01 | 1298.861976465750 |
| 2006-09-01 | 1131.800745179030 |
| 2006-10-01 | 1225.024633118510 |
| 2006-11-01 | 1000.555520075270 |
| 2006-12-01 | 957.056682805642 |
| 2007-01-01 | 1185.342417633810 |
| 2007-02-01 | 1228.111314854700 |
| 2007-03-01 | 1207.608726769360 |
| 2007-04-01 | 1113.630342160760 |
| 2007-05-01 | 1192.830951442290 |
| 2007-06-01 | 1065.656400190910 |
| 2007-07-01 | 960.738741412562 |
| 2007-08-01 | 983.822607638981 |
| 2007-09-01 | 790.764954291045 |
| 2007-10-01 | 857.671225881133 |
| 2007-11-01 | 813.262091306687 |
| 2007-12-01 | 685.531778406161 |
| 2008-01-01 | 715.564517633884 |
| 2008-02-01 | 645.829931631607 |
| 2008-03-01 | 630.840579389827 |
| 2008-04-01 | 661.467735363972 |
| 2008-05-01 | 572.154455839102 |
| 2008-06-01 | 500.027348674752 |
| 2008-07-01 | 545.672476030441 |
| 2008-08-01 | 467.340588107406 |
| 2008-09-01 | 460.835014412119 |
| 2008-10-01 | 422.346325185174 |
| 2008-11-01 | 304.879234830130 |
| 2008-12-01 | 337.538606979800 |
| 2009-01-01 | 337.565148700233 |
| 2009-02-01 | 314.081421636247 |
| 2009-03-01 | 292.366693924421 |
| 2009-04-01 | 348.278586141947 |
| 2009-05-01 | 355.154318097662 |
| 2009-06-01 | 407.102384655135 |
| 2009-07-01 | 454.933161414463 |
| 2009-08-01 | 406.343809326508 |
| 2009-09-01 | 494.485632926354 |
| 2009-10-01 | 477.415330012902 |
| 2009-11-01 | 462.759824292762 |
| 2009-12-01 | 568.642354096327 |
| 2010-01-01 | 535.897753495425 |
| 2010-02-01 | 557.793945803430 |
| 2010-03-01 | 569.867111210758 |
| 2010-04-01 | 516.022050585501 |
| 2010-05-01 | 441.966847099375 |
| 2010-06-01 | 525.634845011131 |
| 2010-07-01 | 435.997167540504 |
| 2010-08-01 | 413.033328501447 |
| 2010-09-01 | 442.028732480531 |
| 2010-10-01 | 449.948822008604 |
| 2010-11-01 | 513.962102609317 |
| 2010-12-01 | 510.668983293809 |
| 2011-01-01 | 629.517034420810 |
| 2011-02-01 | 467.204791195580 |
| 2011-03-01 | 488.118103252972 |
| 2011-04-01 | 479.722114668025 |
| 2011-05-01 | 472.770751644361 |
| 2011-06-01 | 473.412248602215 |
| 2011-07-01 | 474.681037870347 |
| 2011-08-01 | 575.845110134564 |
| 2011-09-01 | 504.119930121506 |
| 2011-10-01 | 453.547571099372 |
| 2011-11-01 | 526.816480750388 |
| 2011-12-01 | 474.221692422497 |
| 2012-01-01 | 470.446887551411 |
| 2012-02-01 | 572.215575613497 |
| 2012-03-01 | 659.512635810952 |
| 2012-04-01 | 596.902053239030 |
| 2012-05-01 | 700.369897882522 |
| 2012-06-01 | 630.230016680941 |
| 2012-07-01 | 645.761371743801 |
| 2012-08-01 | 806.398997430930 |
| 2012-09-01 | 724.178664477535 |
| 2012-10-01 | 855.434373675896 |
| 2012-11-01 | 675.113140843625 |
| 2012-12-01 | 750.624148092154 |
| 2013-01-01 | 729.610109962570 |
| 2013-02-01 | 727.389188697347 |
| 2013-03-01 | 703.921605811617 |
| 2013-04-01 | 794.542235192605 |
| 2013-05-01 | 778.531912247229 |
| 2013-06-01 | 760.206619263880 |
| 2013-07-01 | 778.500745322388 |
| 2013-08-01 | 677.466829966329 |
| 2013-09-01 | 547.018591844716 |
| 2013-10-01 | 724.655879087981 |
| 2013-11-01 | 764.610197599413 |
| 2013-12-01 | 691.860341881538 |
| 2014-01-01 | 758.225494755917 |
| 2014-02-01 | 739.883515793523 |
| 2014-03-01 | 603.267420922791 |
| 2014-04-01 | 698.074554901165 |
| 2014-05-01 | 673.547619430932 |
| 2014-06-01 | 711.608535974327 |
| 2014-07-01 | 777.607945059327 |
| 2014-08-01 | 657.766940710852 |
| 2014-09-01 | 729.397854085748 |
| 2014-10-01 | 707.631432947568 |
| 2014-11-01 | 698.989203775239 |
| 2014-12-01 | 831.983423198829 |
| 2015-01-01 | 674.085772026140 |
| 2015-02-01 | 679.645617965232 |
| 2015-03-01 | 655.882861449132 |
| 2015-04-01 | 692.834549781738 |
| 2015-05-01 | 691.222172844986 |
| 2015-06-01 | 686.732606616353 |
| 2015-07-01 | 724.647379888776 |
| 2015-08-01 | 763.685347518064 |
| 2015-09-01 | 753.126055476331 |
| 2015-10-01 | 759.330163740689 |
| 2015-11-01 | 763.001601707399 |
| 2015-12-01 | 808.268044699706 |
| 2016-01-01 | 793.411379547242 |
| 2016-02-01 | 810.268223404427 |
| 2016-03-01 | 881.895095192691 |
| 2016-04-01 | 782.554395129531 |
| 2016-05-01 | 837.406473604659 |
| 2016-06-01 | 831.871191273236 |
| 2016-07-01 | 752.411309987470 |
| 2016-08-01 | 752.114749725424 |
| 2016-09-01 | 728.608446818078 |
| 2016-10-01 | 604.648699996320 |
| 2016-11-01 | 747.719670770054 |
| 2016-12-01 | 754.961838810918 |
| 2017-01-01 | 783.095431237596 |
| 2017-02-01 | 885.787052374842 |
| 2017-03-01 | 636.815063517656 |
| 2017-04-01 | 775.768366346867 |
| 2017-05-01 | 914.256849369540 |
| 2017-06-01 | 849.032725151186 |
| 2017-07-01 | 826.557191670899 |
| 2017-08-01 | 858.394468253001 |
| 2017-09-01 | 849.934580521140 |
| 2017-10-01 | 835.487831831078 |
| 2017-11-01 | 844.437322775403 |
| 2017-12-01 | 855.049990656559 |
| 2018-01-01 | 862.943693812537 |
| 2018-02-01 | 817.244158498921 |
| 2018-03-01 | 801.883863637584 |
| 2018-04-01 | 777.736129133224 |
| 2018-05-01 | 724.937698110183 |
| 2018-06-01 | 724.132175284774 |
| 2018-07-01 | 712.146987752591 |
| 2018-08-01 | 774.571909503132 |
| 2018-09-01 | 673.567791478866 |
| 2018-10-01 | 791.854889705460 |
| 2018-11-01 | 860.418917470821 |
| 2018-12-01 | 625.368444660215 |
| 2019-01-01 | 612.704001025792 |
| 2019-02-01 | 595.737603398148 |
| 2019-03-01 | 649.007777892247 |
| 2019-04-01 | 743.743652119460 |
| 2019-05-01 | 764.928246187887 |
| 2019-06-01 | 779.200822470723 |
| 2019-07-01 | 787.080778351328 |
| 2019-08-01 | 711.967235123329 |
| 2019-09-01 | 750.105865021205 |
| 2019-10-01 | 788.825637278557 |
| 2019-11-01 | 770.111915174991 |
| 2019-12-01 | 852.589621548094 |
| 2020-01-01 | 725.415945496426 |
| 2020-02-01 | 762.004316410320 |
| 2020-03-01 | 692.552139598574 |
| 2020-04-01 | 403.990081211708 |
| 2020-05-01 | 631.905880782661 |
| 2020-06-01 | 691.673075309798 |
| 2020-07-01 | 851.550331484091 |
| 2020-08-01 | 729.657440282375 |
| 2020-09-01 | 838.900632447873 |
| 2020-10-01 | 731.118303166220 |
| 2020-11-01 | 753.274561686858 |
| 2020-12-01 | 753.049658783609 |
| 2021-01-01 | 881.298827000456 |
| 2021-02-01 | 966.049834324280 |
| 2021-03-01 | 853.103360995186 |
| 2021-04-01 | 709.719264804893 |
| 2021-05-01 | 580.242436485880 |
| 2021-06-01 | 638.149123849600 |
| 2021-07-01 | 669.354072190500 |
| 2021-08-01 | 707.449058607339 |
| 2021-09-01 | 701.716264255939 |
| 2021-10-01 | 677.500114743549 |
| 2021-11-01 | 692.798493950941 |
| 2021-12-01 | 736.253073095933 |
| 2022-01-01 | 650.615157751347 |
| 2022-02-01 | 691.362033974551 |
| 2022-03-01 | 641.397293086697 |
| 2022-04-01 | 603.024363623539 |
| 2022-05-01 | 714.192280095223 |
| 2022-06-01 | 631.857310322371 |
| 2022-07-01 | 552.278905426940 |
| 2022-08-01 | 559.737937821731 |
| 2022-09-01 | 481.679867774351 |
| 2022-10-01 | 431.250418741330 |
| 2022-11-01 | 439.352970977563 |
| 2022-12-01 | 394.570578240484 |
| 2023-01-01 | 372.311732312805 |
| 2023-02-01 | 377.054844699420 |
| 2023-03-01 | 462.897320091323 |
| 2023-04-01 | 461.632960211768 |
| 2023-05-01 | 559.500615235007 |
| 2023-06-01 | 588.371644049278 |
| 2023-07-01 | 483.323438076472 |
| 2023-08-01 | 481.716292606422 |
| 2023-09-01 | 529.791771735359 |
| 2023-10-01 | 582.084890381476 |
| 2023-11-01 | 612.767786111686 |
| 2023-12-01 | 590.367706856049 |
| 2024-01-01 | 600.364180767304 |
| 2024-02-01 | 558.114376825961 |
| 2024-03-01 | 500.218641915659 |
| 2024-04-01 | 546.426956372037 |
| 2024-05-01 | 487.089758109423 |
| 2024-06-01 | 468.059397779952 |
| 2024-07-01 | 524.094270682481 |
| 2024-08-01 | 549.103027419917 |
| 2024-09-01 | 537.680157143176 |
| 2024-10-01 | 545.078294851144 |
| 2024-11-01 | 474.688746496750 |
| 2024-12-01 | 432.313980669533 |
| 2025-01-01 | 538.851692918807 |
| 2025-02-01 | 542.199302371692 |
| 2025-03-01 | 490.849102921252 |
| 2025-04-01 | 591.942164732117 |
| 2025-05-01 | 468.059644339447 |
| 2025-06-01 | 441.465625615885 |
| 2025-07-01 | 577.435702317249 |
| 2025-08-01 | 454.821568346348 |
| 2025-09-01 | 426.906249491557 |
| 2025-10-01 | 430.239562734673 |