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 2026-01-01 |
| Last Updated | 2026-03-24 12:11 PM CDT |
| 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 | 998.975286317563 |
| 1997-04-01 | 1118.360672585590 |
| 1997-05-01 | 1144.403860814200 |
| 1997-06-01 | 1154.157757499200 |
| 1997-07-01 | 1207.953760295160 |
| 1997-08-01 | 1150.456897179420 |
| 1997-09-01 | 1228.129066623400 |
| 1997-10-01 | 1257.606891007790 |
| 1997-11-01 | 1283.206323943730 |
| 1997-12-01 | 1269.562696422730 |
| 1998-01-01 | 1174.865871760080 |
| 1998-02-01 | 1224.718776380970 |
| 1998-03-01 | 1206.884815281880 |
| 1998-04-01 | 1243.569567969690 |
| 1998-05-01 | 1203.765243471420 |
| 1998-06-01 | 1282.888483928910 |
| 1998-07-01 | 1274.488554474350 |
| 1998-08-01 | 1149.088295121560 |
| 1998-09-01 | 1216.964023540910 |
| 1998-10-01 | 1233.559410053030 |
| 1998-11-01 | 1139.061342384050 |
| 1998-12-01 | 1154.653251586100 |
| 1999-01-01 | 1116.267250069710 |
| 1999-02-01 | 1078.721546871700 |
| 1999-03-01 | 1236.144571324470 |
| 1999-04-01 | 1217.574403892250 |
| 1999-05-01 | 1225.687315294160 |
| 1999-06-01 | 1199.017195636060 |
| 1999-07-01 | 1158.160762306260 |
| 1999-08-01 | 1216.769891925310 |
| 1999-09-01 | 1191.692899285360 |
| 1999-10-01 | 1130.859220289230 |
| 1999-11-01 | 1169.470833212600 |
| 1999-12-01 | 1178.929072574720 |
| 2000-01-01 | 1075.424633215120 |
| 2000-02-01 | 1107.775662427690 |
| 2000-03-01 | 1062.795315298950 |
| 2000-04-01 | 995.107690059505 |
| 2000-05-01 | 995.229030006511 |
| 2000-06-01 | 1013.685674645050 |
| 2000-07-01 | 967.844945243991 |
| 2000-08-01 | 1283.110007585120 |
| 2000-09-01 | 1060.085635495500 |
| 2000-10-01 | 1110.725091372900 |
| 2000-11-01 | 1073.982156872790 |
| 2000-12-01 | 1011.962598787570 |
| 2001-01-01 | 1174.726436083580 |
| 2001-02-01 | 1110.880468496970 |
| 2001-03-01 | 1218.527578377100 |
| 2001-04-01 | 1065.805787106550 |
| 2001-05-01 | 1067.620352707780 |
| 2001-06-01 | 1018.399099896750 |
| 2001-07-01 | 1006.687161297440 |
| 2001-08-01 | 1116.049127840940 |
| 2001-09-01 | 963.433309758464 |
| 2001-10-01 | 894.424377133265 |
| 2001-11-01 | 887.057785274523 |
| 2001-12-01 | 958.191888028188 |
| 2002-01-01 | 1107.864437606700 |
| 2002-02-01 | 1087.702963362970 |
| 2002-03-01 | 1058.950158022290 |
| 2002-04-01 | 1137.856738857360 |
| 2002-05-01 | 1164.532335067340 |
| 2002-06-01 | 1257.064968733050 |
| 2002-07-01 | 1274.819773111740 |
| 2002-08-01 | 1200.862608742180 |
| 2002-09-01 | 1119.221809025630 |
| 2002-10-01 | 1404.038713770420 |
| 2002-11-01 | 1486.476984437420 |
| 2002-12-01 | 1208.006865769360 |
| 2003-01-01 | 1276.733097183270 |
| 2003-02-01 | 1284.420198974450 |
| 2003-03-01 | 1146.683196578350 |
| 2003-04-01 | 1242.897144723150 |
| 2003-05-01 | 1234.773523021740 |
| 2003-06-01 | 1118.466954094040 |
| 2003-07-01 | 1354.591498982410 |
| 2003-08-01 | 1256.566820978550 |
| 2003-09-01 | 1341.791978881480 |
| 2003-10-01 | 1277.090493177850 |
| 2003-11-01 | 1253.425570468480 |
| 2003-12-01 | 1368.114490895020 |
| 2004-01-01 | 1235.813053256560 |
| 2004-02-01 | 1202.949577584120 |
| 2004-03-01 | 1257.937787605100 |
| 2004-04-01 | 1351.898609800970 |
| 2004-05-01 | 1271.667938155020 |
| 2004-06-01 | 1584.728855421060 |
| 2004-07-01 | 1242.419209141800 |
| 2004-08-01 | 1144.212272054480 |
| 2004-09-01 | 1315.503736104950 |
| 2004-10-01 | 1232.202832466250 |
| 2004-11-01 | 1384.401571016340 |
| 2004-12-01 | 1375.021735659600 |
| 2005-01-01 | 1422.584714661470 |
| 2005-02-01 | 1164.689068683770 |
| 2005-03-01 | 1416.068459333200 |
| 2005-04-01 | 1436.532414710470 |
| 2005-05-01 | 1423.100260326970 |
| 2005-06-01 | 1549.270636212390 |
| 2005-07-01 | 1422.221699721240 |
| 2005-08-01 | 1584.507459192920 |
| 2005-09-01 | 1523.401823554450 |
| 2005-10-01 | 1494.168578558580 |
| 2005-11-01 | 1649.306104699720 |
| 2005-12-01 | 1587.166188450060 |
| 2006-01-01 | 1348.742186845100 |
| 2006-02-01 | 1438.526548874350 |
| 2006-03-01 | 1390.784167823540 |
| 2006-04-01 | 1183.103962027380 |
| 2006-05-01 | 1266.118773620670 |
| 2006-06-01 | 1237.015382904800 |
| 2006-07-01 | 1161.822273761620 |
| 2006-08-01 | 1298.861977207400 |
| 2006-09-01 | 1131.800739576690 |
| 2006-10-01 | 1225.024627405620 |
| 2006-11-01 | 1000.555512960740 |
| 2006-12-01 | 957.056678381811 |
| 2007-01-01 | 1185.342415057360 |
| 2007-02-01 | 1228.111315080060 |
| 2007-03-01 | 1207.608751515030 |
| 2007-04-01 | 1113.630349607960 |
| 2007-05-01 | 1192.830963951440 |
| 2007-06-01 | 1065.656391305550 |
| 2007-07-01 | 960.738738933561 |
| 2007-08-01 | 983.822605658877 |
| 2007-09-01 | 790.764944125597 |
| 2007-10-01 | 857.671214700280 |
| 2007-11-01 | 813.262079074794 |
| 2007-12-01 | 685.531773853612 |
| 2008-01-01 | 715.564509758456 |
| 2008-02-01 | 645.829937870149 |
| 2008-03-01 | 630.840606834194 |
| 2008-04-01 | 661.467749120142 |
| 2008-05-01 | 572.154472270124 |
| 2008-06-01 | 500.027342478175 |
| 2008-07-01 | 545.672473585347 |
| 2008-08-01 | 467.340582287512 |
| 2008-09-01 | 460.834997838938 |
| 2008-10-01 | 422.346305683257 |
| 2008-11-01 | 304.879218435546 |
| 2008-12-01 | 337.538594014983 |
| 2009-01-01 | 337.565143405112 |
| 2009-02-01 | 314.081420137100 |
| 2009-03-01 | 292.366764058148 |
| 2009-04-01 | 348.278594212967 |
| 2009-05-01 | 355.154330861983 |
| 2009-06-01 | 407.102373817512 |
| 2009-07-01 | 454.933152420536 |
| 2009-08-01 | 406.343769980848 |
| 2009-09-01 | 494.485593663424 |
| 2009-10-01 | 477.415286930577 |
| 2009-11-01 | 462.759773624527 |
| 2009-12-01 | 568.642311977435 |
| 2010-01-01 | 535.897751413685 |
| 2010-02-01 | 557.793953891703 |
| 2010-03-01 | 569.867383536435 |
| 2010-04-01 | 516.022086078030 |
| 2010-05-01 | 441.966878042428 |
| 2010-06-01 | 525.634835866130 |
| 2010-07-01 | 435.997149617254 |
| 2010-08-01 | 413.033247152493 |
| 2010-09-01 | 442.028641432539 |
| 2010-10-01 | 449.948714112548 |
| 2010-11-01 | 513.961963518565 |
| 2010-12-01 | 510.668879020531 |
| 2011-01-01 | 629.516991877367 |
| 2011-02-01 | 467.204779677021 |
| 2011-03-01 | 488.118904937538 |
| 2011-04-01 | 479.722160903328 |
| 2011-05-01 | 472.770770147247 |
| 2011-06-01 | 473.412154148308 |
| 2011-07-01 | 474.680810325772 |
| 2011-08-01 | 575.844524841244 |
| 2011-09-01 | 504.119574787634 |
| 2011-10-01 | 453.547361353802 |
| 2011-11-01 | 526.816552233209 |
| 2011-12-01 | 474.222188589553 |
| 2012-01-01 | 470.447455926163 |
| 2012-02-01 | 572.216079231679 |
| 2012-03-01 | 659.514442464009 |
| 2012-04-01 | 596.901669979548 |
| 2012-05-01 | 700.368938953676 |
| 2012-06-01 | 630.228929420352 |
| 2012-07-01 | 645.760163116666 |
| 2012-08-01 | 806.397380604348 |
| 2012-09-01 | 724.178110868333 |
| 2012-10-01 | 855.434706412419 |
| 2012-11-01 | 675.114736363107 |
| 2012-12-01 | 750.627632517061 |
| 2013-01-01 | 729.613174913187 |
| 2013-02-01 | 727.390453066015 |
| 2013-03-01 | 703.925932437907 |
| 2013-04-01 | 794.537940430853 |
| 2013-05-01 | 778.525887247122 |
| 2013-06-01 | 760.201194470839 |
| 2013-07-01 | 778.497394589436 |
| 2013-08-01 | 677.466850895171 |
| 2013-09-01 | 547.021160844738 |
| 2013-10-01 | 724.660447389658 |
| 2013-11-01 | 764.616331710353 |
| 2013-12-01 | 691.866871230958 |
| 2014-01-01 | 758.230657434267 |
| 2014-02-01 | 739.891096559562 |
| 2014-03-01 | 603.276492360989 |
| 2014-04-01 | 698.076753374836 |
| 2014-05-01 | 673.491225620469 |
| 2014-06-01 | 711.605408845627 |
| 2014-07-01 | 777.602172654703 |
| 2014-08-01 | 657.768426448162 |
| 2014-09-01 | 729.412422981760 |
| 2014-10-01 | 707.657798115434 |
| 2014-11-01 | 699.022178785939 |
| 2014-12-01 | 832.022483857233 |
| 2015-01-01 | 674.102794684376 |
| 2015-02-01 | 679.652061800081 |
| 2015-03-01 | 655.876593108914 |
| 2015-04-01 | 692.813674353783 |
| 2015-05-01 | 691.088084957307 |
| 2015-06-01 | 686.715794083827 |
| 2015-07-01 | 724.632102738201 |
| 2015-08-01 | 763.698790150727 |
| 2015-09-01 | 753.180718311809 |
| 2015-10-01 | 759.398751908657 |
| 2015-11-01 | 763.145396358312 |
| 2015-12-01 | 808.446646655601 |
| 2016-01-01 | 793.552685629657 |
| 2016-02-01 | 809.920792246684 |
| 2016-03-01 | 881.893923900975 |
| 2016-04-01 | 782.500216173353 |
| 2016-05-01 | 837.141100818390 |
| 2016-06-01 | 831.828016137897 |
| 2016-07-01 | 752.390896273557 |
| 2016-08-01 | 752.145308227651 |
| 2016-09-01 | 728.666918451703 |
| 2016-10-01 | 604.654632483009 |
| 2016-11-01 | 747.829093170858 |
| 2016-12-01 | 756.039121113489 |
| 2017-01-01 | 783.216394418521 |
| 2017-02-01 | 884.901391455347 |
| 2017-03-01 | 636.801342892897 |
| 2017-04-01 | 775.716068120907 |
| 2017-05-01 | 912.939616798947 |
| 2017-06-01 | 848.847995828397 |
| 2017-07-01 | 827.468212367073 |
| 2017-08-01 | 858.187650186997 |
| 2017-09-01 | 850.496608700960 |
| 2017-10-01 | 835.241025709320 |
| 2017-11-01 | 844.357539494815 |
| 2017-12-01 | 857.108365624228 |
| 2018-01-01 | 862.894340383275 |
| 2018-02-01 | 816.450960239631 |
| 2018-03-01 | 801.776415701618 |
| 2018-04-01 | 777.701639695198 |
| 2018-05-01 | 722.739367295108 |
| 2018-06-01 | 723.950659972806 |
| 2018-07-01 | 713.862109190303 |
| 2018-08-01 | 774.261337338534 |
| 2018-09-01 | 674.426997939391 |
| 2018-10-01 | 791.390732931822 |
| 2018-11-01 | 860.020801414017 |
| 2018-12-01 | 627.339300214500 |
| 2019-01-01 | 612.404823656190 |
| 2019-02-01 | 595.363665159631 |
| 2019-03-01 | 648.733405011753 |
| 2019-04-01 | 743.625994166681 |
| 2019-05-01 | 761.847112545705 |
| 2019-06-01 | 778.944987945675 |
| 2019-07-01 | 790.039593553862 |
| 2019-08-01 | 711.608657646699 |
| 2019-09-01 | 751.579357655201 |
| 2019-10-01 | 788.227981607678 |
| 2019-11-01 | 769.556422918159 |
| 2019-12-01 | 854.923454099460 |
| 2020-01-01 | 724.719827060208 |
| 2020-02-01 | 761.669652536996 |
| 2020-03-01 | 691.816114456042 |
| 2020-04-01 | 403.679969392625 |
| 2020-05-01 | 629.527988982686 |
| 2020-06-01 | 692.449844339823 |
| 2020-07-01 | 855.010026100956 |
| 2020-08-01 | 729.618617529882 |
| 2020-09-01 | 840.875178358313 |
| 2020-10-01 | 730.655039298872 |
| 2020-11-01 | 752.435113206834 |
| 2020-12-01 | 754.507116176424 |
| 2021-01-01 | 879.544231818917 |
| 2021-02-01 | 965.049729400146 |
| 2021-03-01 | 851.287331520981 |
| 2021-04-01 | 708.460349899463 |
| 2021-05-01 | 578.425465381303 |
| 2021-06-01 | 639.748782159921 |
| 2021-07-01 | 672.773541520155 |
| 2021-08-01 | 708.558198588364 |
| 2021-09-01 | 704.610724298475 |
| 2021-10-01 | 678.134933583345 |
| 2021-11-01 | 691.808447623686 |
| 2021-12-01 | 734.154299990341 |
| 2022-01-01 | 648.703865073356 |
| 2022-02-01 | 689.945070445580 |
| 2022-03-01 | 638.897071679315 |
| 2022-04-01 | 601.401682305757 |
| 2022-05-01 | 711.770728867803 |
| 2022-06-01 | 633.866985481510 |
| 2022-07-01 | 555.351117706472 |
| 2022-08-01 | 562.439757801794 |
| 2022-09-01 | 486.021595982746 |
| 2022-10-01 | 435.585919344461 |
| 2022-11-01 | 438.185997419072 |
| 2022-12-01 | 388.731200957567 |
| 2023-01-01 | 370.220088649238 |
| 2023-02-01 | 375.310368127135 |
| 2023-03-01 | 459.965133347024 |
| 2023-04-01 | 460.526844223994 |
| 2023-05-01 | 557.645177461416 |
| 2023-06-01 | 590.425953826044 |
| 2023-07-01 | 486.680304434910 |
| 2023-08-01 | 486.181488310928 |
| 2023-09-01 | 538.042551696259 |
| 2023-10-01 | 593.946640492321 |
| 2023-11-01 | 609.878938421612 |
| 2023-12-01 | 573.780375770601 |
| 2024-01-01 | 594.293368410547 |
| 2024-02-01 | 553.974853008330 |
| 2024-03-01 | 495.902556582213 |
| 2024-04-01 | 545.658018319966 |
| 2024-05-01 | 485.192106416391 |
| 2024-06-01 | 470.093810769270 |
| 2024-07-01 | 528.378398029012 |
| 2024-08-01 | 556.624675208129 |
| 2024-09-01 | 549.901180835321 |
| 2024-10-01 | 562.329267394091 |
| 2024-11-01 | 471.493318749104 |
| 2024-12-01 | 414.935611826175 |
| 2025-01-01 | 529.746059768710 |
| 2025-02-01 | 536.796101284017 |
| 2025-03-01 | 485.783709444748 |
| 2025-04-01 | 592.073927229856 |
| 2025-05-01 | 465.903551157736 |
| 2025-06-01 | 443.636410449742 |
| 2025-07-01 | 583.394705092583 |
| 2025-08-01 | 462.536409993477 |
| 2025-09-01 | 438.744308907053 |
| 2025-10-01 | 446.346197777884 |
| 2025-11-01 | 504.842820786036 |
| 2025-12-01 | 571.422905421603 |
| 2026-01-01 | 531.587192367868 |