Federal Reserve Economic Data

Table Data - New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Washington-Arlington-Alexandria, DC-VA-MD-WV (MSA)

Title New Private Housing Units Authorized by Building Permits: 1-Unit Structures for Washington-Arlington-Alexandria, DC-VA-MD-WV (MSA)
Series ID WASH911BP1FHSA
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 2024-08-01
Last Updated 2024-09-25 8:44 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 1690.2106381702802
1988-02-01 2387.0042495713100
1988-03-01 2469.9040425660700
1988-04-01 2433.9734336567800
1988-05-01 2294.0797085663400
1988-06-01 2259.5145875863300
1988-07-01 2509.3920418584303
1988-08-01 2878.2908453661403
1988-09-01 2550.9759278070500
1988-10-01 2301.6560524763200
1988-11-01 2581.7273966952202
1988-12-01 2601.5097293487900
1989-01-01 2143.8021554475400
1989-02-01 2001.6521813479999
1989-03-01 1673.3519519910699
1989-04-01 2070.9265639192700
1989-05-01 1799.4726874895800
1989-06-01 1834.0320793407300
1989-07-01 1835.5314587987802
1989-08-01 1665.2300937100700
1989-09-01 2057.1380761382100
1989-10-01 1560.8391749157300
1989-11-01 2153.7558783631603
1989-12-01 1627.3543380141598
1990-01-01 1842.7224214268601
1990-02-01 1761.0837822748601
1990-03-01 1587.6707941124600
1990-04-01 1380.0879440605802
1990-05-01 1466.1244442599600
1990-06-01 1369.7740313587700
1990-07-01 1090.5538552100900
1990-08-01 1379.1331511201600
1990-09-01 1069.0326304394600
1990-10-01 1234.4361448526100
1990-11-01 978.3133730551210
1990-12-01 1025.2381571697301
1991-01-01 897.3414690960410
1991-02-01 748.0900284831770
1991-03-01 1191.6173116450000
1991-04-01 1142.6212755680801
1991-05-01 1485.1155412652600
1991-06-01 1298.5489730701200
1991-07-01 1389.1238019037198
1991-08-01 1208.8812146859000
1991-09-01 1249.8053940364300
1991-10-01 1354.1321382487500
1991-11-01 1415.1789222001000
1991-12-01 1426.1134812391000
1992-01-01 1739.7335705594000
1992-02-01 1602.7708038899802
1992-03-01 1721.5974674344000
1992-04-01 1751.2770870719000
1992-05-01 1818.2663071651502
1992-06-01 1670.4057600533301
1992-07-01 1746.5777127240100
1992-08-01 1499.5970569648400
1992-09-01 1801.0278371662000
1992-10-01 1900.6196917457198
1992-11-01 1704.0583913407600
1992-12-01 1935.4095155011998
1993-01-01 2152.8603827280900
1993-02-01 2057.6463711716600
1993-03-01 1965.5965414594800
1993-04-01 2383.0899178277300
1993-05-01 1971.6468360223300
1993-06-01 2080.2863323480100
1993-07-01 2328.0354601385100
1993-08-01 2115.1965181107300
1993-09-01 2193.3587810682300
1993-10-01 2238.4647176002500
1993-11-01 2478.2249736613400
1993-12-01 2246.6780594366300
1994-01-01 2064.4550221144100
1994-02-01 2243.6432209010100
1994-03-01 2169.3747758353100
1994-04-01 2095.4709958032200
1994-05-01 2338.7081755535996
1994-06-01 2479.3890634172400
1994-07-01 2039.8338241185602
1994-08-01 2427.9187681288100
1994-09-01 2423.0344893390698
1994-10-01 1941.2784009622303
1994-11-01 2017.1555257773700
1994-12-01 2205.2629017396500
1995-01-01 1801.7854670515500
1995-02-01 1636.3698343469100
1995-03-01 2353.3076421564397
1995-04-01 1702.6850186248800
1995-05-01 1679.5158332516198
1995-06-01 1729.0686386731800
1995-07-01 1809.4072779572600
1995-08-01 2523.4422801299500
1995-09-01 1784.5239113731302
1995-10-01 2255.2741100523300
1995-11-01 2036.7061681426899
1995-12-01 1771.1673680724102
1996-01-01 1663.0208912088800
1996-02-01 2001.4821694841600
1996-03-01 1934.7517280479000
1996-04-01 1914.5292378419800
1996-05-01 2387.8302074171897
1996-06-01 1854.9882562621500
1996-07-01 1897.1178504220800
1996-08-01 2047.2621388972302
1996-09-01 1860.4585177391300
1996-10-01 1921.6488340882602
1996-11-01 1915.4190692996801
1996-12-01 1667.0802952952600
1997-01-01 2276.6069069584500
1997-02-01 1918.1186388773801
1997-03-01 1758.7075579827201
1997-04-01 1984.6053167988000
1997-05-01 2069.9570519016600
1997-06-01 1846.8873300860300
1997-07-01 1967.8202630933604
1997-08-01 1742.6803895995001
1997-09-01 1993.9352858919100
1997-10-01 1996.1316540655898
1997-11-01 1841.0596076602899
1997-12-01 2098.9460901370700
1998-01-01 2149.1793243711800
1998-02-01 1969.6247526170300
1998-03-01 2193.1817926062900
1998-04-01 2149.2297652912500
1998-05-01 2151.1907218631895
1998-06-01 2358.6390470303000
1998-07-01 2340.4196881917800
1998-08-01 2297.0296256278302
1998-09-01 3272.6072857768604
1998-10-01 2253.6263123850900
1998-11-01 2327.5497315108000
1998-12-01 2579.4444389030800
1999-01-01 2084.5577322322500
1999-02-01 2347.2932442706000
1999-03-01 2438.3272185598900
1999-04-01 2585.4437042672700
1999-05-01 2326.3673207888800
1999-06-01 2275.5788719180700
1999-07-01 2595.8955245535503
1999-08-01 2337.8940920103600
1999-09-01 2269.4469002751300
1999-10-01 2155.2782513488100
1999-11-01 2292.0002071979000
1999-12-01 2331.2602689729500
2000-01-01 2441.8348230569000
2000-02-01 2462.8720591144600
2000-03-01 2923.5095916076802
2000-04-01 2158.9934177164100
2000-05-01 2441.9639225707300
2000-06-01 2512.3276043384000
2000-07-01 2235.2331406003100
2000-08-01 2435.5895096164500
2000-09-01 1902.8802669459803
2000-10-01 2462.0223116063103
2000-11-01 3204.3631042058600
2000-12-01 2654.6283448934300
2001-01-01 2510.7068875308300
2001-02-01 2557.5016379439200
2001-03-01 2386.8835495077100
2001-04-01 2193.2429189730300
2001-05-01 2287.7767259190600
2001-06-01 2367.0943023171000
2001-07-01 2196.2639402261398
2001-08-01 2320.3097581145603
2001-09-01 2206.6294432675304
2001-10-01 2473.2929455688700
2001-11-01 2581.1244576467398
2001-12-01 2046.8315839698300
2002-01-01 2544.7040141006400
2002-02-01 2737.1586718518300
2002-03-01 2109.7007148833500
2002-04-01 2404.4943535766000
2002-05-01 2261.1202699748897
2002-06-01 2327.6793387989300
2002-07-01 2622.2755549574500
2002-08-01 2637.1786898056303
2002-09-01 2695.3142599002400
2002-10-01 2819.7517800234300
2002-11-01 2504.4759111919100
2002-12-01 2325.0373206300897
2003-01-01 2477.0458693454802
2003-02-01 2209.8456049408300
2003-03-01 2488.5119293078100
2003-04-01 2533.2615686717500
2003-05-01 2737.7073326435900
2003-06-01 3210.2762764372300
2003-07-01 2534.4244840300400
2003-08-01 2448.9887578999696
2003-09-01 2499.8996385029000
2003-10-01 2448.3383711131300
2003-11-01 2157.3703728531800
2003-12-01 2629.1752850422100
2004-01-01 2400.8119195006600
2004-02-01 1859.4252548086900
2004-03-01 2347.2303037361803
2004-04-01 2393.0284848042998
2004-05-01 1983.3036795591001
2004-06-01 1908.4099454794398
2004-07-01 2130.1375590282300
2004-08-01 2280.5515121501900
2004-09-01 2950.1020618405700
2004-10-01 2008.0859832313300
2004-11-01 2091.5680905761700
2004-12-01 2469.9438001991800
2005-01-01 1983.9321420327399
2005-02-01 2010.8046919901199
2005-03-01 2289.3191040614100
2005-04-01 2155.5897288918200
2005-05-01 2353.1334153356197
2005-06-01 2590.0419368794700
2005-07-01 1961.4467663746302
2005-08-01 1799.6090398563001
2005-09-01 1883.7421374938100
2005-10-01 1966.7434863807500
2005-11-01 1996.0652890375898
2005-12-01 1656.8381652352200
2006-01-01 1959.3431475251700
2006-02-01 1906.7307103251800
2006-03-01 1654.6153254044900
2006-04-01 1548.1846960398700
2006-05-01 1608.6157849255999
2006-06-01 1475.2625808976002
2006-07-01 1258.4798473506500
2006-08-01 1431.6042062094700
2006-09-01 1436.4807744657999
2006-10-01 1339.1876354004000
2006-11-01 1470.8231666304998
2006-12-01 1216.3186654183698
2007-01-01 1288.5210000299600
2007-02-01 1590.7962777105100
2007-03-01 1412.7569535436900
2007-04-01 1147.7907122163901
2007-05-01 1515.4845703647102
2007-06-01 1266.4330206185600
2007-07-01 1290.9274239740000
2007-08-01 1164.7708404382902
2007-09-01 942.7801735002420
2007-10-01 970.2702294467360
2007-11-01 983.5650011807210
2007-12-01 906.3787899072050
2008-01-01 925.0301893809179
2008-02-01 821.8444446266060
2008-03-01 732.4473138813080
2008-04-01 792.7896072079770
2008-05-01 646.6734258675750
2008-06-01 768.6457883021540
2008-07-01 775.2136228178610
2008-08-01 762.2398773977470
2008-09-01 734.5711199682200
2008-10-01 1165.9945574340400
2008-11-01 614.9747309485830
2008-12-01 678.6425538986820
2009-01-01 611.3004467715990
2009-02-01 657.5816263305460
2009-03-01 672.4305885947490
2009-04-01 750.1812167436320
2009-05-01 606.8926664091709
2009-06-01 761.1392071918159
2009-07-01 835.1725841714771
2009-08-01 673.5505189999610
2009-09-01 855.0263718661780
2009-10-01 877.9264850177949
2009-11-01 806.9816573446401
2009-12-01 931.2393817928380
2010-01-01 825.8332830671250
2010-02-01 536.4751013795520
2010-03-01 911.9300227807381
2010-04-01 915.3009096827650
2010-05-01 737.1330246806070
2010-06-01 725.8888636281731
2010-07-01 719.7936511967450
2010-08-01 802.3829783269130
2010-09-01 787.6223457031790
2010-10-01 628.0489418473670
2010-11-01 798.8078030418660
2010-12-01 655.7681473974760
2011-01-01 749.7071849399480
2011-02-01 747.2506976873759
2011-03-01 754.2737180322130
2011-04-01 685.9526416864040
2011-05-01 804.1892708109630
2011-06-01 781.4501955329899
2011-07-01 794.6720226302230
2011-08-01 851.5871261667081
2011-09-01 787.4180213464309
2011-10-01 821.6915630047300
2011-11-01 744.3756937573700
2011-12-01 935.5556045075600
2012-01-01 896.1156709838850
2012-02-01 1082.6416764551000
2012-03-01 712.2594228339700
2012-04-01 702.0504735840401
2012-05-01 1056.3109363230800
2012-06-01 924.6409991618550
2012-07-01 879.8939870748590
2012-08-01 1022.3016942344801
2012-09-01 973.8215308598039
2012-10-01 969.9072327770200
2012-11-01 1078.2260886589802
2012-12-01 1089.0375044481698
2013-01-01 1106.9728838930400
2013-02-01 1320.2680471599700
2013-03-01 1267.7670932754100
2013-04-01 1329.1555712522302
2013-05-01 1257.1585383082800
2013-06-01 932.3632084363941
2013-07-01 1308.6129687067800
2013-08-01 1058.7157108389600
2013-09-01 1094.1642498298900
2013-10-01 1296.9914555129699
2013-11-01 1195.2525220132302
2013-12-01 1011.5887085231401
2014-01-01 1076.1638889175900
2014-02-01 1060.3152637874500
2014-03-01 1056.5596974999000
2014-04-01 1076.1075895323800
2014-05-01 1147.7454670245800
2014-06-01 1035.6522463374700
2014-07-01 1059.7930406322500
2014-08-01 1142.6649042170800
2014-09-01 1155.7385449058200
2014-10-01 1066.4185300953000
2014-11-01 1069.3578872125900
2014-12-01 954.0531465898371
2015-01-01 1026.5824044780000
2015-02-01 798.5848623461350
2015-03-01 944.2997202185530
2015-04-01 1033.7034778045200
2015-05-01 948.2308986272800
2015-06-01 1166.7267084444100
2015-07-01 1138.0965355484400
2015-08-01 1008.8930804386500
2015-09-01 1007.3227262700999
2015-10-01 1187.5442525157400
2015-11-01 973.7628353171449
2015-12-01 1210.1544353464699
2016-01-01 1129.8556987967200
2016-02-01 991.9938995985460
2016-03-01 1112.2516282345600
2016-04-01 1020.8977487134300
2016-05-01 1049.8069343112100
2016-06-01 1052.9550645014600
2016-07-01 973.0964471075611
2016-08-01 1256.6361451500000
2016-09-01 1084.6635099619800
2016-10-01 931.8315175248489
2016-11-01 1118.9984748035200
2016-12-01 1308.1206203910401
2017-01-01 1063.2914383686200
2017-02-01 1237.7478410482800
2017-03-01 1299.7447397303700
2017-04-01 1088.6585978115800
2017-05-01 1333.9386781793900
2017-06-01 1187.8594942253300
2017-07-01 1142.1840335363700
2017-08-01 1269.4121253359801
2017-09-01 1399.5610754557700
2017-10-01 1135.3808501368500
2017-11-01 1291.1319506121902
2017-12-01 958.6342435326850
2018-01-01 1243.3780338385200
2018-02-01 1143.5079337786801
2018-03-01 1126.0599687028698
2018-04-01 1228.6679455962400
2018-05-01 1114.1474124200900
2018-06-01 1137.5788571205800
2018-07-01 1201.9632714298800
2018-08-01 1093.1846949950000
2018-09-01 861.9094898077190
2018-10-01 1252.5194345069300
2018-11-01 1030.8869083149700
2018-12-01 1095.1945423583200
2019-01-01 1014.9950796986699
2019-02-01 1050.4343429753699
2019-03-01 1025.8191087973900
2019-04-01 1209.5977092199698
2019-05-01 1045.1797879596600
2019-06-01 1071.8559267755400
2019-07-01 1110.7152649999800
2019-08-01 1065.6425436986901
2019-09-01 968.1866840191910
2019-10-01 986.7212523518020
2019-11-01 1047.6085110510800
2019-12-01 926.7833801859390
2020-01-01 1071.0259282035100
2020-02-01 1164.5644605711700
2020-03-01 822.0408197736850
2020-04-01 865.6754595681191
2020-05-01 793.5355364592090
2020-06-01 984.1937977906700
2020-07-01 1124.1541171722200
2020-08-01 1050.9512812416199
2020-09-01 1255.5014144117900
2020-10-01 1332.2063554228300
2020-11-01 1225.9607374732000
2020-12-01 1291.7622221249198
2021-01-01 1320.7470733939501
2021-02-01 1111.2794065085400
2021-03-01 1237.6693447228000
2021-04-01 1062.7060360074200
2021-05-01 1068.5191695312199
2021-06-01 1087.7661620463400
2021-07-01 1012.8305297957801
2021-08-01 1025.4661386939200
2021-09-01 1076.8358457469699
2021-10-01 985.4806021358820
2021-11-01 1043.7190439162800
2021-12-01 1143.9588205926200
2022-01-01 982.1359282229780
2022-02-01 1145.6770064688699
2022-03-01 1270.9803808204301
2022-04-01 977.9145952911910
2022-05-01 1049.8875506102400
2022-06-01 989.2700511565440
2022-07-01 792.4320075681540
2022-08-01 864.8109541491141
2022-09-01 877.1872770623689
2022-10-01 857.6297617098230
2022-11-01 896.3243450100790
2022-12-01 739.3711308719451
2023-01-01 685.2154046745450
2023-02-01 817.4365613925611
2023-03-01 836.9392592179919
2023-04-01 878.8222076037540
2023-05-01 1114.9565440939200
2023-06-01 895.5554738591620
2023-07-01 726.4080408889340
2023-08-01 941.3805210681419
2023-09-01 830.2075306293750
2023-10-01 843.2408051911350
2023-11-01 818.7050775170190
2023-12-01 843.5733256590871
2024-01-01 976.5302068576990
2024-02-01 1027.5434461942100
2024-03-01 962.0446303953211
2024-04-01 1013.7164330422300
2024-05-01 920.6508856217031
2024-06-01 843.2214390101610
2024-07-01 1047.2227035210400
2024-08-01 904.7664572152730

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