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 2026-01-01
Last Updated 2026-03-24 12:14 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 11580.93029819530
1988-02-01 11485.56401025250
1988-03-01 12104.27952517560
1988-04-01 12200.79424697050
1988-05-01 12597.52914952400
1988-06-01 13446.11963128600
1988-07-01 12574.81533814450
1988-08-01 13942.50409749230
1988-09-01 14024.58815382030
1988-10-01 13655.13826086550
1988-11-01 17729.25852518110
1988-12-01 13111.85246110790
1989-01-01 13572.02474559680
1989-02-01 13549.12347323050
1989-03-01 12736.29800455670
1989-04-01 13019.96406360350
1989-05-01 13971.51263812220
1989-06-01 12624.39731172380
1989-07-01 13220.32557321920
1989-08-01 13462.54623600520
1989-09-01 13531.67097169800
1989-10-01 14366.74728254840
1989-11-01 14290.66530927830
1989-12-01 15099.10545087690
1990-01-01 13252.22713042660
1990-02-01 12126.74807142230
1990-03-01 11438.12897145210
1990-04-01 9773.32685070914
1990-05-01 9322.94699894140
1990-06-01 8509.67577864931
1990-07-01 8576.56910974381
1990-08-01 8174.88111237817
1990-09-01 6996.09894464303
1990-10-01 6722.92857997869
1990-11-01 5996.20332050516
1990-12-01 4968.05222071738
1991-01-01 5645.30423239597
1991-02-01 5947.77260515360
1991-03-01 6526.71599287305
1991-04-01 7277.49576518140
1991-05-01 6837.66169906191
1991-06-01 5460.67491338452
1991-07-01 6777.86476720727
1991-08-01 6075.25271293589
1991-09-01 6034.27635796402
1991-10-01 6182.29455142378
1991-11-01 5903.72369390454
1991-12-01 5750.82314548376
1992-01-01 6557.52400217550
1992-02-01 6680.86165170996
1992-03-01 5656.74449997672
1992-04-01 7370.59214783561
1992-05-01 5999.62500957087
1992-06-01 6589.44272606656
1992-07-01 6227.30073727793
1992-08-01 5579.28382180323
1992-09-01 6161.55992904989
1992-10-01 6011.19424544670
1992-11-01 5792.01041357072
1992-12-01 8240.70465960175
1993-01-01 6032.00614351337
1993-02-01 5607.35762074022
1993-03-01 6566.23119834886
1993-04-01 6068.76714395590
1993-05-01 5227.03607107851
1993-06-01 6072.50440500687
1993-07-01 5396.80003717777
1993-08-01 5648.38071000378
1993-09-01 6127.32315993622
1993-10-01 5489.84454032796
1993-11-01 6458.76411867795
1993-12-01 6438.99381839140
1994-01-01 6304.48211736166
1994-02-01 6681.77268510781
1994-03-01 6992.54819190523
1994-04-01 6015.00383745529
1994-05-01 6901.97072020741
1994-06-01 6750.42283312152
1994-07-01 5248.04169323889
1994-08-01 7133.96408753112
1994-09-01 6467.38904121420
1994-10-01 6381.20470631595
1994-11-01 6227.42725829380
1994-12-01 5766.18995536048
1995-01-01 5170.96617382010
1995-02-01 6358.42286375973
1995-03-01 4506.22982030001
1995-04-01 4959.86895894226
1995-05-01 5733.32170686867
1995-06-01 5471.16828546905
1995-07-01 5296.60372778320
1995-08-01 7480.61477653473
1995-09-01 5634.66186988680
1995-10-01 5869.77235442355
1995-11-01 6201.98175563811
1995-12-01 6492.32156464888
1996-01-01 6381.48442158591
1996-02-01 6097.78101601799
1996-03-01 5961.40279339795
1996-04-01 6623.76547457732
1996-05-01 6072.98563963433
1996-06-01 5767.06695191934
1996-07-01 6346.93976172860
1996-08-01 6429.01174119016
1996-09-01 6156.15444129086
1996-10-01 6678.68609410161
1996-11-01 6172.22536478515
1996-12-01 5178.43608879220
1997-01-01 6256.27803343053
1997-02-01 7821.12851570603
1997-03-01 6131.07625881187
1997-04-01 6724.59449345908
1997-05-01 6647.21830348078
1997-06-01 6445.57191264819
1997-07-01 6757.19370919208
1997-08-01 6915.22996343794
1997-09-01 7381.99244994451
1997-10-01 8741.74809417883
1997-11-01 6841.83469472414
1997-12-01 6613.30293472185
1998-01-01 6710.19319542820
1998-02-01 6753.67335709626
1998-03-01 7722.32038879092
1998-04-01 7493.79350061224
1998-05-01 7072.40116077354
1998-06-01 7999.60608705505
1998-07-01 8190.91101266085
1998-08-01 7690.65671602314
1998-09-01 8182.15156941240
1998-10-01 8099.47180122021
1998-11-01 8028.98641268267
1998-12-01 8039.98470175108
1999-01-01 7983.94065089386
1999-02-01 8090.41164281657
1999-03-01 8383.51131933014
1999-04-01 8082.92681941654
1999-05-01 8265.18980953832
1999-06-01 10220.43911804930
1999-07-01 8594.06954030762
1999-08-01 7598.31577740517
1999-09-01 8073.28378170767
1999-10-01 7392.67003697774
1999-11-01 7861.73404849690
1999-12-01 9047.87859701375
2000-01-01 8442.86232247509
2000-02-01 8072.71371901070
2000-03-01 8398.38224346234
2000-04-01 8003.91744979618
2000-05-01 8753.03396018230
2000-06-01 8732.88990555107
2000-07-01 7304.68529184471
2000-08-01 8802.86512875857
2000-09-01 8775.93843860110
2000-10-01 9249.01979139957
2000-11-01 9758.14944175228
2000-12-01 9267.87323280376
2001-01-01 11067.05875242990
2001-02-01 9086.80319446098
2001-03-01 8846.93855575030
2001-04-01 9003.21912671815
2001-05-01 8862.41445827630
2001-06-01 8424.90617574739
2001-07-01 7926.79566287453
2001-08-01 9054.41153695825
2001-09-01 7585.01914289438
2001-10-01 8598.86137207064
2001-11-01 8547.62054306526
2001-12-01 8908.41096137601
2002-01-01 9070.34068732032
2002-02-01 9741.33156080924
2002-03-01 9147.60632261370
2002-04-01 9636.40061348144
2002-05-01 9637.01252659628
2002-06-01 9014.69730222965
2002-07-01 10355.78086912840
2002-08-01 10245.59294066300
2002-09-01 9952.68332477797
2002-10-01 12918.57383373210
2002-11-01 10600.37996600460
2002-12-01 9907.31293531505
2003-01-01 13376.27636544080
2003-02-01 10899.32066835690
2003-03-01 10251.15160887630
2003-04-01 10514.83417176500
2003-05-01 10713.38125676810
2003-06-01 11094.35778479530
2003-07-01 11289.26726097860
2003-08-01 10587.65672719240
2003-09-01 12360.92698161600
2003-10-01 13984.70533416400
2003-11-01 11523.55582623310
2003-12-01 12848.99577633770
2004-01-01 13037.95621785120
2004-02-01 12233.71449190970
2004-03-01 13145.87950855480
2004-04-01 12524.16027766830
2004-05-01 12048.28928631820
2004-06-01 11822.49870411090
2004-07-01 11963.76627774860
2004-08-01 13023.30401015120
2004-09-01 13118.93217304970
2004-10-01 12415.62911836920
2004-11-01 13209.90911738460
2004-12-01 12335.60044063720
2005-01-01 11423.37571213140
2005-02-01 11663.30542711220
2005-03-01 12742.73200413870
2005-04-01 12736.12944321350
2005-05-01 11861.09286413670
2005-06-01 12120.82442804190
2005-07-01 12609.85066624960
2005-08-01 12333.95814522120
2005-09-01 15366.73251383900
2005-10-01 12055.13728746270
2005-11-01 11479.36933854460
2005-12-01 10479.58342224690
2006-01-01 10688.87986039240
2006-02-01 10966.27298135450
2006-03-01 9442.11931654042
2006-04-01 9520.69461571979
2006-05-01 9888.00035441559
2006-06-01 9150.35824736922
2006-07-01 7566.83023390265
2006-08-01 7604.67639788235
2006-09-01 7281.36881065830
2006-10-01 6367.91607715473
2006-11-01 7227.41589230884
2006-12-01 5947.29454672135
2007-01-01 7866.56138294458
2007-02-01 7385.01038660793
2007-03-01 7598.06461385573
2007-04-01 6088.09348786544
2007-05-01 5811.45919828282
2007-06-01 5141.26587713103
2007-07-01 5409.66509076811
2007-08-01 5053.36514148447
2007-09-01 4062.25546840078
2007-10-01 4219.44610155824
2007-11-01 3829.10483840065
2007-12-01 3722.65230897981
2008-01-01 3158.30595653538
2008-02-01 3018.75387900098
2008-03-01 2773.49059769912
2008-04-01 3004.18164547126
2008-05-01 2840.35975545059
2008-06-01 2930.19240300398
2008-07-01 2760.03990045761
2008-08-01 2317.90793733137
2008-09-01 2444.84558159644
2008-10-01 2488.01249829644
2008-11-01 2037.62968828835
2008-12-01 1810.54606649078
2009-01-01 1397.97559262986
2009-02-01 1593.58684452195
2009-03-01 1629.27443738255
2009-04-01 2099.49058188648
2009-05-01 1889.99773852372
2009-06-01 2095.07554697483
2009-07-01 1977.67321476309
2009-08-01 2128.53079329834
2009-09-01 2249.77257046040
2009-10-01 2243.15432077934
2009-11-01 2223.77594670718
2009-12-01 2513.86045928530
2010-01-01 2304.97509931848
2010-02-01 2415.05552880428
2010-03-01 2415.30251047777
2010-04-01 2207.08106020221
2010-05-01 1649.31136727902
2010-06-01 2065.46452551074
2010-07-01 1971.72042958054
2010-08-01 1831.35879386086
2010-09-01 1975.55474681343
2010-10-01 1629.14362785337
2010-11-01 1784.64726822373
2010-12-01 2773.95536178207
2011-01-01 1924.88234735395
2011-02-01 1770.40367780482
2011-03-01 1908.79264726487
2011-04-01 1944.86053201818
2011-05-01 1859.03657978310
2011-06-01 1740.68215409102
2011-07-01 1464.08759366581
2011-08-01 1942.08640526570
2011-09-01 1758.82355732384
2011-10-01 2022.12032651529
2011-11-01 1929.18582077007
2011-12-01 2006.23511567795
2012-01-01 1793.78062911618
2012-02-01 1987.47591972372
2012-03-01 2004.43946267294
2012-04-01 1826.32619778924
2012-05-01 2123.56594044555
2012-06-01 2139.78673957838
2012-07-01 2437.01846593572
2012-08-01 2557.05821048917
2012-09-01 2553.21538703845
2012-10-01 2549.76285854004
2012-11-01 2785.11181385249
2012-12-01 2569.37235555864
2013-01-01 2959.04617659836
2013-02-01 3049.26748441774
2013-03-01 2858.99506026726
2013-04-01 2940.64362573130
2013-05-01 3009.46792136734
2013-06-01 2569.77866814089
2013-07-01 2890.05744422929
2013-08-01 3589.54300305209
2013-09-01 2925.09836013481
2013-10-01 3277.11176402517
2013-11-01 3020.37116667095
2013-12-01 3341.67874012717
2014-01-01 3508.89439045673
2014-02-01 2976.34968650719
2014-03-01 2903.79234709638
2014-04-01 2925.59977423538
2014-05-01 3030.49181449796
2014-06-01 3387.14825746223
2014-07-01 3090.90542619853
2014-08-01 2744.00034136581
2014-09-01 3112.88730199099
2014-10-01 3144.12737392396
2014-11-01 3180.17378809189
2014-12-01 3354.76010498100
2015-01-01 3284.28045899168
2015-02-01 3275.53328263637
2015-03-01 3522.20439918217
2015-04-01 3919.99695585432
2015-05-01 3640.34445065371
2015-06-01 3921.48557220314
2015-07-01 3881.31358896808
2015-08-01 3667.05259705344
2015-09-01 3733.88088933358
2015-10-01 3582.84939461998
2015-11-01 3848.51840325257
2015-12-01 3681.69882753360
2016-01-01 3183.38981519826
2016-02-01 4204.98745413420
2016-03-01 3908.68861984639
2016-04-01 4050.33082097860
2016-05-01 4061.53247364786
2016-06-01 4251.99546642277
2016-07-01 3274.12453063808
2016-08-01 4333.07044035519
2016-09-01 4461.41798672383
2016-10-01 4137.68110209814
2016-11-01 4524.08431921584
2016-12-01 5154.07630522852
2017-01-01 3515.53382285769
2017-02-01 4597.10751876209
2017-03-01 4694.71728411862
2017-04-01 4500.47387107136
2017-05-01 4675.11672598790
2017-06-01 5440.92066066602
2017-07-01 3894.78925806388
2017-08-01 5105.70983586716
2017-09-01 5256.54863925175
2017-10-01 5339.79528029708
2017-11-01 5376.42340652072
2017-12-01 5613.36572689610
2018-01-01 5531.74733435997
2018-02-01 5238.55777135111
2018-03-01 5771.49675203618
2018-04-01 5127.81977065216
2018-05-01 5769.38861822348
2018-06-01 4960.29834110597
2018-07-01 5550.04950406344
2018-08-01 5361.49498371539
2018-09-01 5169.73378405097
2018-10-01 5055.68711792021
2018-11-01 4852.33960425639
2018-12-01 4058.52120810667
2019-01-01 4778.12792731433
2019-02-01 4210.84489422836
2019-03-01 4128.45807543000
2019-04-01 5025.14532999969
2019-05-01 4796.38573254040
2019-06-01 4857.62119001433
2019-07-01 4997.89493556924
2019-08-01 4871.27145700661
2019-09-01 4748.11231924851
2019-10-01 5428.81044196215
2019-11-01 5542.01021123834
2019-12-01 5997.67851498249
2020-01-01 5710.95548707625
2020-02-01 6348.87842420035
2020-03-01 3755.98008927905
2020-04-01 2572.96971696606
2020-05-01 3005.85291222614
2020-06-01 4990.42075988379
2020-07-01 5158.73540380486
2020-08-01 5441.51893018301
2020-09-01 6857.05034883072
2020-10-01 6371.94174680303
2020-11-01 5548.28843004352
2020-12-01 6174.31440104133
2021-01-01 5610.40589003639
2021-02-01 5775.07414665297
2021-03-01 5729.73878475065
2021-04-01 5797.66329704766
2021-05-01 5209.43840417053
2021-06-01 5413.99469055712
2021-07-01 5527.29367288860
2021-08-01 5417.90599046973
2021-09-01 5564.81502998191
2021-10-01 5262.86594681977
2021-11-01 5835.48034678725
2021-12-01 4939.98841678232
2022-01-01 5826.97717314389
2022-02-01 5687.87041596350
2022-03-01 6146.29022509137
2022-04-01 5455.09568667298
2022-05-01 5231.70928451168
2022-06-01 5278.64316240959
2022-07-01 4597.11755360852
2022-08-01 5400.67028323487
2022-09-01 4567.60441072941
2022-10-01 3923.92156925799
2022-11-01 3808.49958474602
2022-12-01 3909.53957713484
2023-01-01 3530.44061880626
2023-02-01 3919.61922375873
2023-03-01 4065.26348498283
2023-04-01 4054.27603373588
2023-05-01 5196.10501515448
2023-06-01 5989.72722264898
2023-07-01 4621.26934454861
2023-08-01 5240.35356347666
2023-09-01 4733.43510547442
2023-10-01 4882.68430202600
2023-11-01 5404.48664678212
2023-12-01 4817.05220940963
2024-01-01 5389.58166388881
2024-02-01 4971.87476896780
2024-03-01 4370.86296967384
2024-04-01 5114.14128958839
2024-05-01 5304.60928127877
2024-06-01 5022.10079709973
2024-07-01 5208.71087459576
2024-08-01 5256.27967293366
2024-09-01 5186.50396097404
2024-10-01 5206.07244731273
2024-11-01 5026.05015443382
2024-12-01 5247.63375132065
2025-01-01 5314.57788017948
2025-02-01 5326.12216431266
2025-03-01 4611.59236503344
2025-04-01 4846.18735294772
2025-05-01 4175.58853049079
2025-06-01 4049.13999175198
2025-07-01 4646.38168879816
2025-08-01 4020.52205984318
2025-09-01 5227.93029717479
2025-10-01 4672.45198457216
2025-11-01 4345.31132994990
2025-12-01 4486.25524491231
2026-01-01 4407.11198534061

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