Table Data - New Private Housing Units Authorized by Building Permits: 1-Unit Structures for California

Title New Private Housing Units Authorized by Building Permits: 1-Unit Structures for California
Series ID CABP1FHSA
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 2026-04-01
Last Updated 2026-06-01 11:09 AM 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 11580.93029819520
1988-02-01 11485.56401025220
1988-03-01 12104.27952517500
1988-04-01 12200.79424696990
1988-05-01 12597.52914952350
1988-06-01 13446.11963128570
1988-07-01 12574.81533814450
1988-08-01 13942.50409749270
1988-09-01 14024.58815382100
1988-10-01 13655.13826086630
1988-11-01 17729.25852518210
1988-12-01 13111.85246110840
1989-01-01 13572.02474559690
1989-02-01 13549.12347323030
1989-03-01 12736.29800455640
1989-04-01 13019.96406360100
1989-05-01 13971.51263812230
1989-06-01 12624.39731172410
1989-07-01 13220.32557321950
1989-08-01 13462.54623600660
1989-09-01 13531.67097169770
1989-10-01 14366.74728254790
1989-11-01 14290.66530927790
1989-12-01 15099.10545087700
1990-01-01 13252.22713042770
1990-02-01 12126.74807142400
1990-03-01 11438.12897145140
1990-04-01 9773.32685070758
1990-05-01 9322.94699894277
1990-06-01 8509.67577865018
1990-07-01 8576.56910974388
1990-08-01 8174.88111237897
1990-09-01 6996.09894464123
1990-10-01 6722.92857997679
1990-11-01 5996.20332050354
1990-12-01 4968.05222071694
1991-01-01 5645.30423239720
1991-02-01 5947.77260515619
1991-03-01 6526.71599287333
1991-04-01 7277.49576518108
1991-05-01 6837.66169906435
1991-06-01 5460.67491338593
1991-07-01 6777.86476720611
1991-08-01 6075.25271293793
1991-09-01 6034.27635796147
1991-10-01 6182.29455141937
1991-11-01 5903.72369389996
1991-12-01 5750.82314547974
1992-01-01 6557.52400217262
1992-02-01 6680.86165171112
1992-03-01 5656.74450000720
1992-04-01 7370.59214782026
1992-05-01 5999.62500955677
1992-06-01 6589.44272605614
1992-07-01 6227.30073727120
1992-08-01 5579.28382181450
1992-09-01 6161.55992905919
1992-10-01 6011.19424545492
1992-11-01 5792.01041357511
1992-12-01 8240.70465959827
1993-01-01 6032.00614350466
1993-02-01 5607.35762073322
1993-03-01 6566.23119841119
1993-04-01 6068.76714391176
1993-05-01 5227.03607103289
1993-06-01 6072.50440497051
1993-07-01 5396.80003716484
1993-08-01 5648.38071004226
1993-09-01 6127.32315999688
1993-10-01 5489.84454039513
1993-11-01 6458.76411874288
1993-12-01 6438.99381829995
1994-01-01 6304.48211737017
1994-02-01 6681.77268504171
1994-03-01 6992.54819204962
1994-04-01 6015.00383741458
1994-05-01 6901.97072011034
1994-06-01 6750.42283300235
1994-07-01 5248.04169310458
1994-08-01 7133.96408739175
1994-09-01 6467.38904109889
1994-10-01 6381.20470719702
1994-11-01 6227.42725832346
1994-12-01 5766.18995519325
1995-01-01 5170.96617389317
1995-02-01 6358.42286372101
1995-03-01 4506.22982045469
1995-04-01 4959.86895891914
1995-05-01 5733.32170672060
1995-06-01 5471.16828517339
1995-07-01 5296.60372732967
1995-08-01 7480.61477597896
1995-09-01 5634.66186958886
1995-10-01 5869.77235610407
1995-11-01 6201.98175600834
1995-12-01 6492.32156479730
1996-01-01 6381.48442210919
1996-02-01 6097.78101613548
1996-03-01 5961.40279344618
1996-04-01 6623.76547393191
1996-05-01 6072.98563867846
1996-06-01 5767.06695236630
1996-07-01 6346.93976020601
1996-08-01 6429.01174009900
1996-09-01 6156.15444052393
1996-10-01 6678.68609648863
1996-11-01 6172.22536452324
1996-12-01 5178.43609452372
1997-01-01 6256.27803277804
1997-02-01 7821.12851472726
1997-03-01 6131.07625775675
1997-04-01 6724.59449144978
1997-05-01 6647.21830100526
1997-06-01 6445.57191400788
1997-07-01 6757.19370149972
1997-08-01 6915.22996322592
1997-09-01 7381.99245093974
1997-10-01 8741.74810048401
1997-11-01 6841.83469722298
1997-12-01 6613.30295237937
1998-01-01 6710.19319358214
1998-02-01 6753.67335657229
1998-03-01 7722.32038561622
1998-04-01 7493.79349355539
1998-05-01 7072.40115148697
1998-06-01 7999.60608277630
1998-07-01 8190.91098872166
1998-08-01 7690.65671012746
1998-09-01 8182.15160817819
1998-10-01 8099.47181046125
1998-11-01 8028.98642219174
1998-12-01 8039.98473949162
1999-01-01 7983.94064882347
1999-02-01 8090.41164035428
1999-03-01 8383.51130944713
1999-04-01 8082.92679772445
1999-05-01 8265.18977857554
1999-06-01 10220.43912159620
1999-07-01 8594.06948631507
1999-08-01 7598.31575443112
1999-09-01 8073.28384636883
1999-10-01 7392.67010050929
1999-11-01 7861.73404380710
1999-12-01 9047.87870678788
2000-01-01 8442.86231293099
2000-02-01 8072.71369863304
2000-03-01 8398.38222003318
2000-04-01 8003.91741045909
2000-05-01 8753.03389971070
2000-06-01 8732.88990419599
2000-07-01 7304.68520686600
2000-08-01 8802.86504465850
2000-09-01 8775.93848794621
2000-10-01 9249.02013081819
2000-11-01 9758.14939931425
2000-12-01 9267.87342396144
2001-01-01 11067.05876771130
2001-02-01 9086.80317212309
2001-03-01 8846.93850624807
2001-04-01 9003.21901096059
2001-05-01 8862.41428912048
2001-06-01 8424.90608300169
2001-07-01 7926.79548286469
2001-08-01 9054.41141793256
2001-09-01 7585.01923798757
2001-10-01 8598.86210184468
2001-11-01 8547.62066271939
2001-12-01 8908.41134038968
2002-01-01 9070.34074509513
2002-02-01 9741.33143357590
2002-03-01 9147.60605036622
2002-04-01 9636.40017487443
2002-05-01 9637.01204175366
2002-06-01 9014.69697718774
2002-07-01 10355.78057325100
2002-08-01 10245.59297216120
2002-09-01 9952.68375118495
2002-10-01 12918.57595183320
2002-11-01 10600.38072120940
2002-12-01 9907.31373006139
2003-01-01 13376.27650037340
2003-02-01 10899.32021259060
2003-03-01 10251.15089468970
2003-04-01 10514.83330669280
2003-05-01 10713.37852129000
2003-06-01 11094.35752362600
2003-07-01 11289.26720705850
2003-08-01 10587.65708335200
2003-09-01 12360.92765434720
2003-10-01 13984.71260148600
2003-11-01 11523.55675276740
2003-12-01 12849.00121841060
2004-01-01 13037.95147339450
2004-02-01 12233.71443727200
2004-03-01 13145.87147226330
2004-04-01 12524.16008053220
2004-05-01 12048.28503941400
2004-06-01 11822.49965100350
2004-07-01 11963.76742755470
2004-08-01 13023.30556881650
2004-09-01 13118.93379998900
2004-10-01 12415.63993712070
2004-11-01 13209.91016214830
2004-12-01 12335.60987460770
2005-01-01 11423.36786934590
2005-02-01 11663.30664021870
2005-03-01 12742.71784053710
2005-04-01 12736.12947222470
2005-05-01 11861.08535907920
2005-06-01 12120.82171438710
2005-07-01 12609.84804374570
2005-08-01 12333.96772484440
2005-09-01 15366.73628225800
2005-10-01 12055.15022876860
2005-11-01 11479.37896572490
2005-12-01 10479.60543838330
2006-01-01 10688.86254896880
2006-02-01 10966.28074937820
2006-03-01 9442.10478238477
2006-04-01 9520.69089233894
2006-05-01 9887.98677047292
2006-06-01 9150.34593441862
2006-07-01 7566.82204848876
2006-08-01 7604.68618727386
2006-09-01 7281.37492552211
2006-10-01 6367.92834950909
2006-11-01 7227.43589620336
2006-12-01 5947.31985435481
2007-01-01 7866.54928283644
2007-02-01 7385.02162240876
2007-03-01 7598.05289786947
2007-04-01 6088.08544551602
2007-05-01 5811.44568236009
2007-06-01 5141.24705290145
2007-07-01 5409.64157635589
2007-08-01 5053.35688827987
2007-09-01 4062.25448901121
2007-10-01 4219.48984462276
2007-11-01 3829.09285605712
2007-12-01 3722.75358136215
2008-01-01 3158.28064566514
2008-02-01 3018.74852493742
2008-03-01 2773.47901397009
2008-04-01 3004.17098581092
2008-05-01 2840.34875054859
2008-06-01 2930.17465588318
2008-07-01 2760.02121423148
2008-08-01 2317.89639565335
2008-09-01 2444.84364572438
2008-10-01 2488.06119777834
2008-11-01 2037.61155850961
2008-12-01 1810.63420211507
2009-01-01 1397.95702165544
2009-02-01 1593.57707859586
2009-03-01 1629.26252065723
2009-04-01 2099.48111091178
2009-05-01 1889.98652840170
2009-06-01 2095.05770039393
2009-07-01 1977.65538946490
2009-08-01 2128.51358170941
2009-09-01 2249.76928361820
2009-10-01 2243.21764800667
2009-11-01 2223.74205634635
2009-12-01 2514.03376773817
2010-01-01 2304.93083769180
2010-02-01 2415.02924724307
2010-03-01 2415.27768736339
2010-04-01 2207.07072659016
2010-05-01 1649.29927478869
2010-06-01 2065.44277144746
2010-07-01 1971.70383670042
2010-08-01 1831.33975527890
2010-09-01 1975.55436879178
2010-10-01 1629.19327518436
2010-11-01 1784.62544702939
2010-12-01 2774.15217854499
2011-01-01 1924.82534062455
2011-02-01 1770.38933194314
2011-03-01 1908.77862925106
2011-04-01 1944.86032326005
2011-05-01 1859.02798940522
2011-06-01 1740.65736403263
2011-07-01 1464.07784299541
2011-08-01 1942.03669229741
2011-09-01 1758.82224547359
2011-10-01 2022.18387201166
2011-11-01 1929.16831712572
2011-12-01 2006.39022266183
2012-01-01 1793.72052121683
2012-02-01 1987.47876614263
2012-03-01 2004.43920880813
2012-04-01 1826.33380105205
2012-05-01 2123.55801043791
2012-06-01 2139.73991773985
2012-07-01 2436.99410213669
2012-08-01 2556.94213541517
2012-09-01 2553.19954205653
2012-10-01 2549.81806865490
2012-11-01 2785.11950867632
2012-12-01 2569.55593455589
2013-01-01 2959.08542181415
2013-02-01 3049.35533907197
2013-03-01 2859.04382958556
2013-04-01 2940.66330805942
2013-05-01 3009.42220025187
2013-06-01 2569.64993463711
2013-07-01 2889.97939581786
2013-08-01 3589.22997392709
2013-09-01 2925.01929538947
2013-10-01 3277.12413979851
2013-11-01 3020.39736687788
2013-12-01 3342.02293081599
2014-01-01 3509.54350126481
2014-02-01 2976.55549961395
2014-03-01 2903.95007854445
2014-04-01 2925.68977494212
2014-05-01 3030.48925053389
2014-06-01 3386.02174718709
2014-07-01 3090.89886376851
2014-08-01 2743.70755912621
2014-09-01 3112.78876010993
2014-10-01 3144.17681761027
2014-11-01 3180.36030651949
2014-12-01 3355.37270809570
2015-01-01 3285.59803919218
2015-02-01 3275.98863329805
2015-03-01 3522.61864747476
2015-04-01 3920.31848065912
2015-05-01 3640.56664460742
2015-06-01 3917.92389893857
2015-07-01 3881.58176730382
2015-08-01 3666.70018387696
2015-09-01 3733.78554227676
2015-10-01 3582.82262470444
2015-11-01 3848.48062483763
2015-12-01 3683.94964964049
2016-01-01 3186.65966871318
2016-02-01 4205.23916068651
2016-03-01 3906.97183913181
2016-04-01 4052.19016916787
2016-05-01 4061.76555666122
2016-06-01 4245.38713252269
2016-07-01 3274.47585650853
2016-08-01 4332.80710379427
2016-09-01 4461.44710828951
2016-10-01 4137.81755291553
2016-11-01 4524.15345221720
2016-12-01 5159.79424383005
2017-01-01 3521.31391757706
2017-02-01 4597.46683993830
2017-03-01 4689.01120450812
2017-04-01 4503.96376758511
2017-05-01 4675.09276021050
2017-06-01 5429.79620757960
2017-07-01 3894.79248505419
2017-08-01 5104.88133572859
2017-09-01 5258.25612107645
2017-10-01 5340.60985190758
2017-11-01 5376.54480494114
2017-12-01 5622.55719222080
2018-01-01 5544.16500119877
2018-02-01 5238.96530735584
2018-03-01 5759.80415712168
2018-04-01 5132.85203572655
2018-05-01 5768.43124245452
2018-06-01 4948.92356911572
2018-07-01 5548.93239994978
2018-08-01 5359.86774862311
2018-09-01 5172.65140630236
2018-10-01 5056.50634210969
2018-11-01 4851.85489264311
2018-12-01 4071.75584754773
2019-01-01 4787.49829594501
2019-02-01 4210.44027116763
2019-03-01 4119.22816078544
2019-04-01 5028.36145708359
2019-05-01 4794.22678489485
2019-06-01 4846.59337170574
2019-07-01 4995.87548951763
2019-08-01 4868.38021284755
2019-09-01 4752.04062179954
2019-10-01 5429.74146123707
2019-11-01 5540.87348763791
2019-12-01 6027.33789129490
2020-01-01 5721.40960948990
2020-02-01 6349.35080824281
2020-03-01 3749.61583708341
2020-04-01 2569.74671470109
2020-05-01 3002.18937117253
2020-06-01 4982.01630824517
2020-07-01 5156.88644742246
2020-08-01 5437.97624232154
2020-09-01 6863.31833571918
2020-10-01 6373.70265999966
2020-11-01 5548.18312407655
2020-12-01 6214.04237788035
2021-01-01 5618.02955957865
2021-02-01 5776.98368978188
2021-03-01 5728.24435982971
2021-04-01 5776.19516014273
2021-05-01 5197.70352523576
2021-06-01 5407.02461317174
2021-07-01 5524.76611884269
2021-08-01 5413.79787144122
2021-09-01 5571.36415775686
2021-10-01 5267.08039477911
2021-11-01 5839.83392601840
2021-12-01 4973.70733789619
2022-01-01 5836.17688050330
2022-02-01 5693.09186500073
2022-03-01 6154.34633504109
2022-04-01 5421.35400694547
2022-05-01 5213.90078372965
2022-06-01 5271.51673568243
2022-07-01 4593.96089247018
2022-08-01 5392.77906862227
2022-09-01 4572.94585132870
2022-10-01 3929.59350402510
2022-11-01 3816.52022937920
2022-12-01 3942.50919034115
2023-01-01 3544.27433199452
2023-02-01 3912.86377089907
2023-03-01 4086.30176131792
2023-04-01 4011.75289144710
2023-05-01 5171.43725224257
2023-06-01 5982.04150970437
2023-07-01 4613.08430517890
2023-08-01 5229.93819427032
2023-09-01 4740.53390830209
2023-10-01 4893.92360805934
2023-11-01 5426.15655609194
2023-12-01 4863.94478393608
2024-01-01 5433.85860117380
2024-02-01 4959.14744668929
2024-03-01 4398.43137549271
2024-04-01 5030.93706434402
2024-05-01 5273.21654088037
2024-06-01 5018.70675455922
2024-07-01 5194.67402687168
2024-08-01 5244.95635846585
2024-09-01 5197.22361351428
2024-10-01 5222.01799729647
2024-11-01 5055.70682851800
2024-12-01 5306.62510621627
2025-01-01 5383.34426800654
2025-02-01 5304.36521998651
2025-03-01 4646.77001596243
2025-04-01 4737.04262674383
2025-05-01 4147.21974537487
2025-06-01 4049.60176291629
2025-07-01 4628.54370186279
2025-08-01 4013.66340877830
2025-09-01 5244.30620398606
2025-10-01 4690.77411856099
2025-11-01 4378.16374422024
2025-12-01 4540.45287285601
2026-01-01 4479.64207773966
2026-02-01 4709.84860669229
2026-03-01 4811.77501478753
2026-04-01 5168.89057559750

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