Table Data - New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Portland-Vancouver-Hillsboro, OR-WA (MSA)

Title New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Portland-Vancouver-Hillsboro, OR-WA (MSA)
Series ID PORT941BP1FHSA
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
1988-01-01 425.222768213136
1988-02-01 497.144698014333
1988-03-01 503.132314969437
1988-04-01 451.683205242523
1988-05-01 453.780558288104
1988-06-01 529.667834249986
1988-07-01 497.006633355351
1988-08-01 553.891932091201
1988-09-01 537.456765161425
1988-10-01 533.774500361004
1988-11-01 597.234018682007
1988-12-01 559.445029851080
1989-01-01 582.109568716996
1989-02-01 529.711114062402
1989-03-01 520.379376424690
1989-04-01 568.958414846036
1989-05-01 602.755190442056
1989-06-01 581.666756623028
1989-07-01 552.069931885999
1989-08-01 615.080878334584
1989-09-01 681.235347476818
1989-10-01 660.489527393297
1989-11-01 712.794394409770
1989-12-01 754.942211302528
1990-01-01 794.131971963139
1990-02-01 641.425704559982
1990-03-01 836.401006389633
1990-04-01 793.222085454556
1990-05-01 775.528440777123
1990-06-01 783.069335838773
1990-07-01 795.039881749472
1990-08-01 898.462346466534
1990-09-01 687.041608782318
1990-10-01 738.064295051045
1990-11-01 642.936048300652
1990-12-01 499.094054486457
1991-01-01 540.781170950731
1991-02-01 577.246095018763
1991-03-01 517.821441587721
1991-04-01 572.094496955307
1991-05-01 612.905352102217
1991-06-01 512.621746374236
1991-07-01 628.554766819570
1991-08-01 611.365800472302
1991-09-01 619.773526089773
1991-10-01 744.908155996149
1991-11-01 626.534739593494
1991-12-01 673.183313064021
1992-01-01 737.403378809749
1992-02-01 704.131854103488
1992-03-01 709.390659318293
1992-04-01 672.726643102132
1992-05-01 658.552487060338
1992-06-01 841.074727080508
1992-07-01 688.389388007403
1992-08-01 688.604459580917
1992-09-01 813.337724408670
1992-10-01 680.644244509047
1992-11-01 763.918500763775
1992-12-01 811.872256587292
1993-01-01 770.535479537621
1993-02-01 785.098372265464
1993-03-01 801.833843179465
1993-04-01 872.885979013585
1993-05-01 833.198429990777
1993-06-01 863.423839586126
1993-07-01 932.519874999470
1993-08-01 899.782388503414
1993-09-01 948.515427866590
1993-10-01 925.106904885074
1993-11-01 991.984368343273
1993-12-01 944.551526607547
1994-01-01 975.097538419562
1994-02-01 968.938403577299
1994-03-01 980.414805096470
1994-04-01 1014.587073675340
1994-05-01 934.521421536150
1994-06-01 985.514511822239
1994-07-01 841.093266903847
1994-08-01 1054.864201197200
1994-09-01 921.260880729057
1994-10-01 834.280476477601
1994-11-01 847.351625703848
1994-12-01 882.726289879762
1995-01-01 841.166236843789
1995-02-01 856.294367166772
1995-03-01 875.892724048301
1995-04-01 840.434768824626
1995-05-01 913.059948026962
1995-06-01 870.148966425056
1995-07-01 805.368447712336
1995-08-01 894.795644591832
1995-09-01 828.165137591811
1995-10-01 987.593970240949
1995-11-01 1025.809314245820
1995-12-01 905.103574653036
1996-01-01 978.249575215129
1996-02-01 992.988230052874
1996-03-01 1009.616954159100
1996-04-01 918.288640580658
1996-05-01 1083.632684164950
1996-06-01 929.953859613351
1996-07-01 1022.344254653610
1996-08-01 1142.285413394810
1996-09-01 918.532617444549
1996-10-01 1064.857875734000
1996-11-01 908.880129338987
1996-12-01 1050.369393449750
1997-01-01 1000.845321607590
1997-02-01 1008.552361953550
1997-03-01 929.237066418663
1997-04-01 992.898758113590
1997-05-01 940.401021513401
1997-06-01 1002.230220979260
1997-07-01 1031.141240762920
1997-08-01 857.711392752321
1997-09-01 1013.454113444930
1997-10-01 834.500095584352
1997-11-01 768.949673738230
1997-12-01 1035.478841247870
1998-01-01 902.944619998448
1998-02-01 878.473627496623
1998-03-01 940.533031993636
1998-04-01 969.512057344695
1998-05-01 902.456076221764
1998-06-01 952.713809896377
1998-07-01 950.642389158311
1998-08-01 926.673458890194
1998-09-01 904.479611242975
1998-10-01 1032.352878088780
1998-11-01 933.780562220835
1998-12-01 882.649049598787
1999-01-01 943.068583125629
1999-02-01 909.670169773976
1999-03-01 902.931439336763
1999-04-01 1025.938664566170
1999-05-01 797.898966233033
1999-06-01 911.944207327197
1999-07-01 806.788267570842
1999-08-01 834.108400366150
1999-09-01 909.012740172357
1999-10-01 794.826796291779
1999-11-01 979.014435137261
1999-12-01 837.474780841986
2000-01-01 749.829019201602
2000-02-01 791.748134982377
2000-03-01 835.829713367949
2000-04-01 755.627687697418
2000-05-01 899.194529847250
2000-06-01 841.148363028641
2000-07-01 692.776704188043
2000-08-01 913.394999138406
2000-09-01 867.484338773009
2000-10-01 843.878902032504
2000-11-01 953.284965215107
2000-12-01 926.637958721888
2001-01-01 966.672135994731
2001-02-01 959.191743313743
2001-03-01 893.540668724466
2001-04-01 890.225682640716
2001-05-01 866.868396964268
2001-06-01 854.357928378512
2001-07-01 913.144879625739
2001-08-01 869.867114954518
2001-09-01 740.497455486168
2001-10-01 899.169621380675
2001-11-01 876.726146228085
2001-12-01 819.911986081103
2002-01-01 855.220748590060
2002-02-01 863.445631531585
2002-03-01 858.227350520856
2002-04-01 898.724924020922
2002-05-01 897.534618924463
2002-06-01 803.739853172540
2002-07-01 822.029429679043
2002-08-01 764.803360964812
2002-09-01 862.031508000541
2002-10-01 990.414841912193
2002-11-01 811.256057173990
2002-12-01 875.436959057050
2003-01-01 884.673545655899
2003-02-01 854.423892379648
2003-03-01 1011.268408661430
2003-04-01 879.546721431117
2003-05-01 805.148642519424
2003-06-01 901.114382722521
2003-07-01 878.507739553507
2003-08-01 860.332382163465
2003-09-01 844.964382467663
2003-10-01 1012.861986707410
2003-11-01 714.033935755114
2003-12-01 765.392919863898
2004-01-01 744.514988892576
2004-02-01 793.115257086678
2004-03-01 872.773873553601
2004-04-01 944.055259842639
2004-05-01 941.459462119929
2004-06-01 893.698808032703
2004-07-01 952.176583868577
2004-08-01 1068.326142646330
2004-09-01 953.385464106321
2004-10-01 959.355019062843
2004-11-01 1026.095569066170
2004-12-01 1042.938673300310
2005-01-01 948.681432786160
2005-02-01 980.596764276433
2005-03-01 915.183542597158
2005-04-01 865.176696378294
2005-05-01 933.392680772702
2005-06-01 1089.449844605390
2005-07-01 978.883577282865
2005-08-01 1115.358776941730
2005-09-01 1161.987566814100
2005-10-01 1067.883038985270
2005-11-01 1124.355449140760
2005-12-01 1015.896412995520
2006-01-01 904.943031415168
2006-02-01 1013.893603664930
2006-03-01 969.310405450763
2006-04-01 932.563824486143
2006-05-01 978.305503149657
2006-06-01 923.203758776812
2006-07-01 827.794300812873
2006-08-01 773.283389776266
2006-09-01 676.320344167220
2006-10-01 699.822338591537
2006-11-01 716.529598408890
2006-12-01 716.512603972669
2007-01-01 803.870074234975
2007-02-01 766.176736155799
2007-03-01 844.300938601518
2007-04-01 781.584804839183
2007-05-01 736.994318049741
2007-06-01 681.355456195406
2007-07-01 831.062381417590
2007-08-01 684.437746727762
2007-09-01 498.227324843287
2007-10-01 612.535605698213
2007-11-01 494.102457509526
2007-12-01 484.088040717010
2008-01-01 462.249171113313
2008-02-01 419.612304978512
2008-03-01 295.287554223815
2008-04-01 355.454780218769
2008-05-01 373.039237879358
2008-06-01 349.162413921075
2008-07-01 382.393928857096
2008-08-01 299.422544438078
2008-09-01 340.322798409069
2008-10-01 305.453429141436
2008-11-01 283.141213893955
2008-12-01 240.931502469568
2009-01-01 209.912303036074
2009-02-01 172.415041404388
2009-03-01 154.519128990536
2009-04-01 241.780722126067
2009-05-01 214.387758710036
2009-06-01 258.910370547574
2009-07-01 244.097917970956
2009-08-01 230.347860425193
2009-09-01 286.239929419105
2009-10-01 301.236114292902
2009-11-01 308.800033380099
2009-12-01 411.218586060026
2010-01-01 299.675963195921
2010-02-01 354.792853028853
2010-03-01 346.801323661731
2010-04-01 292.582086755157
2010-05-01 237.090485885056
2010-06-01 249.552173979271
2010-07-01 218.651995285503
2010-08-01 218.792629437825
2010-09-01 275.368824802871
2010-10-01 253.525111140561
2010-11-01 304.541000628178
2010-12-01 304.880032001898
2011-01-01 289.663076694610
2011-02-01 227.283802188535
2011-03-01 241.128767373978
2011-04-01 238.513406041421
2011-05-01 206.998167850976
2011-06-01 210.581615866911
2011-07-01 245.251634040043
2011-08-01 279.109809917017
2011-09-01 261.432630731463
2011-10-01 277.673063269651
2011-11-01 321.113126485062
2011-12-01 347.904850292697
2012-01-01 308.475386373053
2012-02-01 363.396745823303
2012-03-01 298.676565888316
2012-04-01 339.284440196664
2012-05-01 395.482423813400
2012-06-01 383.113560335028
2012-07-01 392.528037327228
2012-08-01 412.102474947007
2012-09-01 335.854340695940
2012-10-01 465.588916362670
2012-11-01 373.403013288219
2012-12-01 385.206130822473
2013-01-01 457.488277076549
2013-02-01 514.920702070981
2013-03-01 440.480694236188
2013-04-01 416.199549348365
2013-05-01 443.714747518749
2013-06-01 444.629752052120
2013-07-01 511.245116406217
2013-08-01 501.862291667363
2013-09-01 495.408733810918
2013-10-01 480.666563314189
2013-11-01 476.324429494691
2013-12-01 443.194883167366
2014-01-01 438.682711822049
2014-02-01 349.401012812747
2014-03-01 468.218905545484
2014-04-01 442.216950753250
2014-05-01 439.521533070908
2014-06-01 442.460083529731
2014-07-01 457.311448109254
2014-08-01 398.861826108881
2014-09-01 449.294222087811
2014-10-01 497.906686643653
2014-11-01 429.501884782961
2014-12-01 529.320188309309
2015-01-01 517.045685686996
2015-02-01 498.783269966160
2015-03-01 536.426980169360
2015-04-01 622.180494972119
2015-05-01 624.686891990503
2015-06-01 655.631404912840
2015-07-01 613.602537427994
2015-08-01 508.006666789539
2015-09-01 679.012166175027
2015-10-01 622.533988159807
2015-11-01 631.461440074678
2015-12-01 601.378882944117
2016-01-01 535.238236554615
2016-02-01 666.721793626446
2016-03-01 684.150925248238
2016-04-01 658.187580450632
2016-05-01 594.823730845996
2016-06-01 667.234999328816
2016-07-01 550.612218008717
2016-08-01 614.732197124477
2016-09-01 567.930594415382
2016-10-01 592.459309741094
2016-11-01 607.566494640879
2016-12-01 543.070804731360
2017-01-01 552.342692559664
2017-02-01 599.448222566536
2017-03-01 560.263943435247
2017-04-01 530.111320780567
2017-05-01 593.737728214076
2017-06-01 497.447047156103
2017-07-01 527.305075007449
2017-08-01 609.981880738837
2017-09-01 505.163073945508
2017-10-01 515.266749683592
2017-11-01 694.130558253796
2017-12-01 619.684128091040
2018-01-01 595.067384950959
2018-02-01 550.479928334017
2018-03-01 576.042229184808
2018-04-01 546.165307281183
2018-05-01 561.356872360504
2018-06-01 568.799036711490
2018-07-01 570.396959468667
2018-08-01 527.903119815608
2018-09-01 578.030249639315
2018-10-01 579.147657639133
2018-11-01 581.658506134281
2018-12-01 569.745598398143
2019-01-01 586.217243322377
2019-02-01 487.527485449916
2019-03-01 556.358307426174
2019-04-01 646.125716739711
2019-05-01 632.508387651951
2019-06-01 650.074047180936
2019-07-01 673.933038183914
2019-08-01 672.244851714529
2019-09-01 704.506842262309
2019-10-01 674.807906761129
2019-11-01 619.087769506873
2019-12-01 640.374160215944
2020-01-01 674.545816860567
2020-02-01 697.170194709568
2020-03-01 617.907385417736
2020-04-01 336.359085719710
2020-05-01 422.137492189010
2020-06-01 637.843820936496
2020-07-01 713.294739508514
2020-08-01 685.023015472112
2020-09-01 699.708606411020
2020-10-01 756.931240115191
2020-11-01 735.303502434472
2020-12-01 842.367472697240
2021-01-01 648.184696329543
2021-02-01 675.747640933011
2021-03-01 855.631791051320
2021-04-01 681.919284608516
2021-05-01 612.530293260654
2021-06-01 677.323973597140
2021-07-01 765.899998813962
2021-08-01 711.465184912688
2021-09-01 680.951360129613
2021-10-01 604.366080932441
2021-11-01 614.622176196516
2021-12-01 618.312278272479
2022-01-01 585.788514947078
2022-02-01 640.484947927108
2022-03-01 592.918661546937
2022-04-01 546.502749425639
2022-05-01 556.385605157032
2022-06-01 432.663688211116
2022-07-01 384.340353072895
2022-08-01 384.360846263725
2022-09-01 409.391391080169
2022-10-01 381.176787663010
2022-11-01 457.910296312650
2022-12-01 441.624844064865
2023-01-01 429.433105104230
2023-02-01 386.813742819126
2023-03-01 511.809812931171
2023-04-01 465.767828933802
2023-05-01 507.874369903314
2023-06-01 564.771319323826
2023-07-01 488.411931287018
2023-08-01 559.652023932129
2023-09-01 502.589462236449
2023-10-01 543.022683401417
2023-11-01 666.047743268398
2023-12-01 516.939732563591
2024-01-01 541.589029588499
2024-02-01 534.863477352101
2024-03-01 456.706751838014
2024-04-01 540.159181667067
2024-05-01 556.962610469553
2024-06-01 444.934151281739
2024-07-01 533.985588185237
2024-08-01 545.282224546863
2024-09-01 560.351298952257
2024-10-01 535.870609269515
2024-11-01 468.674078285743
2024-12-01 485.441199459095
2025-01-01 625.242525780572
2025-02-01 536.983610618389
2025-03-01 473.135555098395
2025-04-01 495.415955067361
2025-05-01 436.669642160433
2025-06-01 483.210738490716
2025-07-01 464.073828317207
2025-08-01 397.018068441588
2025-09-01 445.015709235901
2025-10-01 514.994477635971
2025-11-01 508.980164894482
2025-12-01 747.479207632521
2026-01-01 541.559294516233

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