Title: New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Illinois Series ID: ILBP1FHSA 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 2024-02-01 Last Updated: 2024-03-25 8:42 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 (https://www.statsmodels.org/dev/generated/statsmodels.tsa.x13.x13_arima_analysis.html). More information on X-13ARIMA-SEATS can be found here (https://www.census.gov/data/software/x13as.html). 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 (https://fred.stlouisfed.org/series/ILBP1FH). 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 2088.3097786606304 1988-02-01 2241.2336622576000 1988-03-01 2757.4264500396600 1988-04-01 2725.0291099634400 1988-05-01 2745.9062099082300 1988-06-01 2919.8409485850000 1988-07-01 2819.9419502926300 1988-08-01 2834.1218789614195 1988-09-01 2818.3913764170000 1988-10-01 2862.8756605008502 1988-11-01 2823.2714753785700 1988-12-01 3235.9997781499000 1989-01-01 2741.3149773018804 1989-02-01 2366.4410956411100 1989-03-01 2397.7326705377700 1989-04-01 2443.4890640525700 1989-05-01 2463.1963097047100 1989-06-01 2327.6135339325400 1989-07-01 2356.9579711057700 1989-08-01 2390.1703777503500 1989-09-01 2679.2080047979700 1989-10-01 2661.6651080150300 1989-11-01 2761.2455430341197 1989-12-01 2014.3646234555500 1990-01-01 3123.6202430185900 1990-02-01 2788.5344603826397 1990-03-01 2614.8502461924600 1990-04-01 2341.1320031061605 1990-05-01 2367.6686774009700 1990-06-01 2322.6091566651603 1990-07-01 2214.8186805643700 1990-08-01 2340.1198114318300 1990-09-01 2005.1846943719300 1990-10-01 1965.3744221096697 1990-11-01 1847.0836002811398 1990-12-01 1683.1034408433700 1991-01-01 1393.3239831845500 1991-02-01 1778.6257590839602 1991-03-01 1862.3513052558700 1991-04-01 2246.5391600808102 1991-05-01 2294.8750364703897 1991-06-01 2197.4710898227600 1991-07-01 2487.3825393146803 1991-08-01 2188.2124597632500 1991-09-01 2077.0911046104197 1991-10-01 2147.3754362455397 1991-11-01 2089.6571428344500 1991-12-01 1952.4052777857999 1992-01-01 2915.5865674458600 1992-02-01 2705.8084741346600 1992-03-01 2578.0060383422800 1992-04-01 2554.2226465101900 1992-05-01 2353.6359289859697 1992-06-01 2628.0203831013100 1992-07-01 2666.6049802340400 1992-08-01 2469.3947067569000 1992-09-01 2892.3343271501503 1992-10-01 2734.4821026406000 1992-11-01 2447.3673634065500 1992-12-01 2752.8006956812800 1993-01-01 2956.4000045837600 1993-02-01 2754.8808984909600 1993-03-01 2618.8274644112303 1993-04-01 2657.4012492855400 1993-05-01 2710.4296059719300 1993-06-01 2851.9938221134500 1993-07-01 2784.8358864359100 1993-08-01 2996.0355952651700 1993-09-01 2931.5957168722102 1993-10-01 3203.1025834255100 1993-11-01 3459.7431091168896 1993-12-01 3488.5998520178900 1994-01-01 3263.0367761188500 1994-02-01 2668.7958009928300 1994-03-01 3440.7688088250600 1994-04-01 3165.0849421816497 1994-05-01 3492.5118816296003 1994-06-01 3192.0658009139397 1994-07-01 3118.0140777354400 1994-08-01 3313.6393485981300 1994-09-01 3167.4641167310200 1994-10-01 3049.0244758691497 1994-11-01 3088.2979658954100 1994-12-01 2993.9547624797700 1995-01-01 2727.2862681758600 1995-02-01 2721.4172041663300 1995-03-01 3065.5683484001697 1995-04-01 2474.2542119321000 1995-05-01 2891.6382844260197 1995-06-01 3027.1721151612000 1995-07-01 2890.6572282888000 1995-08-01 3058.2480794564400 1995-09-01 3100.8011647564100 1995-10-01 3138.8197782873400 1995-11-01 3177.0024253687898 1995-12-01 2807.0919217010496 1996-01-01 3290.7099684792797 1996-02-01 3234.2774103136200 1996-03-01 2804.8466875967700 1996-04-01 3359.6098388299700 1996-05-01 3094.6206079235500 1996-06-01 2844.6452304622200 1996-07-01 3160.4818172492000 1996-08-01 3132.3871819595000 1996-09-01 2984.2244124488398 1996-10-01 3071.9743562840200 1996-11-01 2898.5323978208303 1996-12-01 2693.3710211634700 1997-01-01 2638.5029379406100 1997-02-01 2553.7214922190400 1997-03-01 2586.7270179700304 1997-04-01 2727.4078254319897 1997-05-01 2814.7447645816100 1997-06-01 2755.9056582922603 1997-07-01 2913.2670267210200 1997-08-01 2603.6819002178800 1997-09-01 2856.7659474082598 1997-10-01 2645.7266294904603 1997-11-01 2398.5356010970000 1997-12-01 2880.3066749939200 1998-01-01 2786.4882364285804 1998-02-01 3079.5548504031103 1998-03-01 2826.6065216924394 1998-04-01 3052.0140015743896 1998-05-01 2914.8757245207300 1998-06-01 3144.5069105976300 1998-07-01 2943.8769241179198 1998-08-01 2813.2368185056703 1998-09-01 2898.6605677653997 1998-10-01 2965.9654242754600 1998-11-01 2939.2000969642104 1998-12-01 3674.4063939418100 1999-01-01 2988.2287348024297 1999-02-01 3193.2884706277196 1999-03-01 3221.4157728262300 1999-04-01 3132.2779081687000 1999-05-01 3016.7096770065900 1999-06-01 3286.7562930164600 1999-07-01 3195.6395997243703 1999-08-01 3352.7049956249202 1999-09-01 3560.4702379067403 1999-10-01 3331.3858302300605 1999-11-01 3681.6272525932500 1999-12-01 3516.3438625067300 2000-01-01 3518.2918879131800 2000-02-01 3397.2481847856798 2000-03-01 3534.8244139908600 2000-04-01 3104.9382009599800 2000-05-01 3158.3652646119900 2000-06-01 2944.3335115924600 2000-07-01 3117.9115830053497 2000-08-01 3267.7520447996100 2000-09-01 3052.2374147235400 2000-10-01 2994.7683340380300 2000-11-01 3271.3659262144106 2000-12-01 2295.7062122263700 2001-01-01 3448.5314110785700 2001-02-01 3136.0355263419200 2001-03-01 3222.1548733130000 2001-04-01 3185.4439631922996 2001-05-01 3569.1450473510604 2001-06-01 3392.5406927655500 2001-07-01 3314.9319988553500 2001-08-01 3406.8693382895600 2001-09-01 2937.3470381673400 2001-10-01 3133.1468031750896 2001-11-01 3178.5746893612895 2001-12-01 3112.5477182418200 2002-01-01 3723.5478253094398 2002-02-01 3606.8363259745200 2002-03-01 3108.6932645989900 2002-04-01 3790.5229564077100 2002-05-01 3554.2997289757300 2002-06-01 3323.0613392191303 2002-07-01 3295.7698051039197 2002-08-01 3240.5446923528100 2002-09-01 3575.2474713143897 2002-10-01 3810.6497642132600 2002-11-01 3431.4227773734400 2002-12-01 3995.2029375888200 2003-01-01 3486.6970404027397 2003-02-01 3332.1002511099000 2003-03-01 3339.1932357697100 2003-04-01 3598.1252281183397 2003-05-01 3404.3446693280900 2003-06-01 3869.2304228364796 2003-07-01 3886.9977502494203 2003-08-01 3664.0429205203495 2003-09-01 3939.7894283291707 2003-10-01 4028.7727317658000 2003-11-01 3239.7884469607200 2003-12-01 3768.4287014030500 2004-01-01 4027.4491714796295 2004-02-01 3777.0502485411000 2004-03-01 4026.2341318565204 2004-04-01 3739.0986100633600 2004-05-01 3488.5140296679200 2004-06-01 3779.5501705039100 2004-07-01 3877.9181222069897 2004-08-01 4220.4550647248000 2004-09-01 3964.1870502197900 2004-10-01 3182.7621146410697 2004-11-01 3774.9833597922297 2004-12-01 4055.0955061577200 2005-01-01 3570.2175291209900 2005-02-01 4034.6564298882400 2005-03-01 3875.2002953785295 2005-04-01 3936.5737840274605 2005-05-01 3912.6564809983100 2005-06-01 4110.1313692915790 2005-07-01 4155.2640595024295 2005-08-01 4145.5594330145705 2005-09-01 4252.8036560801400 2005-10-01 3703.6459833284202 2005-11-01 4615.5988205025500 2005-12-01 4493.6522197528600 2006-01-01 4439.1990042435300 2006-02-01 4297.0936850743700 2006-03-01 3833.5246950962000 2006-04-01 3465.9468376440004 2006-05-01 3583.9796437415900 2006-06-01 3126.5014011356500 2006-07-01 2989.3884072369397 2006-08-01 3128.6858035129200 2006-09-01 2734.5004481124800 2006-10-01 2611.3562640858104 2006-11-01 2602.1712117147100 2006-12-01 2405.0615040538500 2007-01-01 2851.8999301719000 2007-02-01 2236.7380006124600 2007-03-01 2430.5475479000197 2007-04-01 2119.8332027590500 2007-05-01 2414.8563298441000 2007-06-01 2215.9680472856800 2007-07-01 2068.0153005368397 2007-08-01 1993.7238754324103 2007-09-01 1650.5494731062700 2007-10-01 1822.1512536192397 2007-11-01 1595.0465189217300 2007-12-01 1506.0411472012500 2008-01-01 1477.0691736657600 2008-02-01 1268.4675997706000 2008-03-01 999.7976536076759 2008-04-01 1310.4308783613800 2008-05-01 1160.3919383360499 2008-06-01 1063.3661551921200 2008-07-01 1102.7513436908600 2008-08-01 905.6544696979920 2008-09-01 1046.0029440144199 2008-10-01 865.5186035337821 2008-11-01 767.8866631079620 2008-12-01 641.0572583301650 2009-01-01 548.0407546919699 2009-02-01 916.0269940325800 2009-03-01 504.5166360017340 2009-04-01 636.4417890234570 2009-05-01 618.1511857438060 2009-06-01 706.5739842357500 2009-07-01 871.6324520397260 2009-08-01 673.1536564755090 2009-09-01 750.8228497345019 2009-10-01 748.0905935559759 2009-11-01 763.2428071260001 2009-12-01 778.7598521010430 2010-01-01 648.1749552871670 2010-02-01 827.6775011302100 2010-03-01 745.0336498542680 2010-04-01 778.2695417078619 2010-05-01 658.4584861138840 2010-06-01 669.8520192327880 2010-07-01 597.8702164578260 2010-08-01 575.7091529398240 2010-09-01 608.9230580442070 2010-10-01 531.1667497123800 2010-11-01 762.2439168668620 2010-12-01 551.5670158213260 2011-01-01 572.6429895627940 2011-02-01 584.4622522322570 2011-03-01 638.2208364657780 2011-04-01 554.8844936300950 2011-05-01 582.9896445429440 2011-06-01 583.4803378468530 2011-07-01 557.2209512590040 2011-08-01 634.0439970395330 2011-09-01 584.9178597105471 2011-10-01 607.7638716412690 2011-11-01 637.8661758413481 2011-12-01 696.1686237010710 2012-01-01 689.9201744561930 2012-02-01 660.8525110696950 2012-03-01 741.9914324260069 2012-04-01 631.4994269336499 2012-05-01 770.6989485914689 2012-06-01 689.6200413396949 2012-07-01 736.7649173587331 2012-08-01 836.7695631479961 2012-09-01 743.3403362667950 2012-10-01 810.5117436173460 2012-11-01 774.2770498540890 2012-12-01 793.6556606335310 2013-01-01 789.6439782319260 2013-02-01 776.7566328381260 2013-03-01 734.0139588688120 2013-04-01 816.9204397941920 2013-05-01 810.0413689815010 2013-06-01 801.2041759409241 2013-07-01 882.6234099623069 2013-08-01 856.9202429865820 2013-09-01 803.6798425244580 2013-10-01 883.0968660682080 2013-11-01 969.8986664963290 2013-12-01 891.7598165316310 2014-01-01 644.4454414349100 2014-02-01 814.4605958288950 2014-03-01 822.6734528067191 2014-04-01 1012.1655583844600 2014-05-01 827.4799617486820 2014-06-01 822.2161080535270 2014-07-01 862.7243570526190 2014-08-01 803.9134788280321 2014-09-01 866.3312389703310 2014-10-01 934.4660272622270 2014-11-01 780.3536087306510 2014-12-01 1046.3645380604700 2015-01-01 764.9581042526011 2015-02-01 636.6594085596530 2015-03-01 756.3085608795641 2015-04-01 894.3091553229201 2015-05-01 895.3283994903670 2015-06-01 951.9970125306440 2015-07-01 969.7797131865130 2015-08-01 873.5495895093900 2015-09-01 956.2257124833791 2015-10-01 826.9807195723840 2015-11-01 929.8938004134759 2015-12-01 907.1671413222799 2016-01-01 975.7331360331971 2016-02-01 912.1896138627609 2016-03-01 998.7533642012570 2016-04-01 893.8299478717520 2016-05-01 882.6864347859320 2016-06-01 902.8081226271900 2016-07-01 789.9522377489030 2016-08-01 872.9457272118469 2016-09-01 911.8730671185470 2016-10-01 918.4730465538700 2016-11-01 878.8036593030679 2016-12-01 853.4038142418430 2017-01-01 874.5867665574331 2017-02-01 995.7936613005670 2017-03-01 882.5927979131351 2017-04-01 823.2893435314350 2017-05-01 864.7281869070900 2017-06-01 940.7100641881400 2017-07-01 924.8263210306140 2017-08-01 970.8536231043890 2017-09-01 895.5538292442770 2017-10-01 765.2390036722140 2017-11-01 929.3533310802029 2017-12-01 873.6797937219501 2018-01-01 767.0059101174760 2018-02-01 796.2428156034399 2018-03-01 969.1651281841890 2018-04-01 870.5519094908490 2018-05-01 939.3092491951680 2018-06-01 861.8367277965581 2018-07-01 804.5772297981040 2018-08-01 932.3959966660809 2018-09-01 767.7498112454030 2018-10-01 922.2627055048580 2018-11-01 842.2991125563041 2018-12-01 719.3103104890109 2019-01-01 892.2890740038290 2019-02-01 758.0534285287821 2019-03-01 724.1145305836290 2019-04-01 859.6633752407131 2019-05-01 853.7739122376780 2019-06-01 677.1243484746900 2019-07-01 797.2723029145669 2019-08-01 643.2208507054130 2019-09-01 753.1106334607150 2019-10-01 767.9661931723559 2019-11-01 739.3563058767430 2019-12-01 777.4028462495160 2020-01-01 888.5810827006890 2020-02-01 828.8325626762360 2020-03-01 646.4594745848600 2020-04-01 620.7715078142480 2020-05-01 634.4344689036720 2020-06-01 824.1400243272450 2020-07-01 925.0969418175521 2020-08-01 834.3142839549749 2020-09-01 968.3419663355870 2020-10-01 866.0158070715470 2020-11-01 866.0476780400411 2020-12-01 1033.6096923053399 2021-01-01 994.4582244025390 2021-02-01 949.3740263584900 2021-03-01 947.9603776287180 2021-04-01 1045.7873884049700 2021-05-01 833.2054518268601 2021-06-01 876.2822262697370 2021-07-01 827.5183291184700 2021-08-01 1061.5743438172801 2021-09-01 908.8519062470151 2021-10-01 730.4939660864101 2021-11-01 947.2182643290621 2021-12-01 1007.1363836410301 2022-01-01 878.0941706235069 2022-02-01 860.2288053107830 2022-03-01 936.8461836057870 2022-04-01 870.0986355922729 2022-05-01 787.6472335795410 2022-06-01 852.9707470418220 2022-07-01 698.4587841717930 2022-08-01 737.0344063544079 2022-09-01 696.5141456464889 2022-10-01 710.0475861690030 2022-11-01 628.9124861993160 2022-12-01 570.9399858726050 2023-01-01 631.6881156543590 2023-02-01 685.1279339406391 2023-03-01 696.1080068275050 2023-04-01 643.3086576909140 2023-05-01 780.3193702817680 2023-06-01 703.3575123674331 2023-07-01 749.5724010912190 2023-08-01 730.8985306751430 2023-09-01 730.7133386647720 2023-10-01 761.7754269592940 2023-11-01 915.0636656970680 2023-12-01 894.3382349515030 2024-01-01 832.0716214414440 2024-02-01 909.5745257646339