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 2024-11-01
Last Updated 2024-12-23 10:55 AM CST
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 2297.0296256278198
1998-09-01 3272.6072857768604
1998-10-01 2253.6263123850900
1998-11-01 2327.5497315108000
1998-12-01 2579.4444389030900
1999-01-01 2084.5577322322600
1999-02-01 2347.2932442706400
1999-03-01 2438.3272185598800
1999-04-01 2585.4437042672700
1999-05-01 2326.3673207888700
1999-06-01 2275.5788719180500
1999-07-01 2595.8955245535103
1999-08-01 2337.8940920103300
1999-09-01 2269.4469002751200
1999-10-01 2155.2782513488200
1999-11-01 2292.0002071979300
1999-12-01 2331.2602689729997
2000-01-01 2441.8348230569600
2000-02-01 2462.8720591145600
2000-03-01 2923.5095916076700
2000-04-01 2158.9934177164200
2000-05-01 2441.9639225707000
2000-06-01 2512.3276043383400
2000-07-01 2235.2331406002700
2000-08-01 2435.5895096163900
2000-09-01 1902.8802669459300
2000-10-01 2462.0223116062602
2000-11-01 3204.3631042057800
2000-12-01 2654.6283448932200
2001-01-01 2510.7068875305104
2001-02-01 2557.5016379451300
2001-03-01 2386.8835495072900
2001-04-01 2193.2429189728600
2001-05-01 2287.7767259189300
2001-06-01 2367.0943023179300
2001-07-01 2196.2639402261602
2001-08-01 2320.3097581146303
2001-09-01 2206.6294432676300
2001-10-01 2473.2929455686000
2001-11-01 2581.1244576458603
2001-12-01 2046.8315839688800
2002-01-01 2544.7040140996000
2002-02-01 2737.1586718539300
2002-03-01 2109.7007148828600
2002-04-01 2404.4943535776000
2002-05-01 2261.1202699770700
2002-06-01 2327.6793387935800
2002-07-01 2622.2755549606200
2002-08-01 2637.1786898086400
2002-09-01 2695.3142599030803
2002-10-01 2819.7517800247697
2002-11-01 2504.4759111911400
2002-12-01 2325.0373206280500
2003-01-01 2477.0458693416100
2003-02-01 2209.8456049394500
2003-03-01 2488.5119293012804
2003-04-01 2533.2615686662302
2003-05-01 2737.7073326405500
2003-06-01 3210.2762764165004
2003-07-01 2534.4244840376600
2003-08-01 2448.9887579253200
2003-09-01 2499.8996385439605
2003-10-01 2448.3383711310200
2003-11-01 2157.3703728665000
2003-12-01 2629.1752850640900
2004-01-01 2400.8119195136396
2004-02-01 1859.4252545925700
2004-03-01 2347.2303037252400
2004-04-01 2393.0284851643600
2004-05-01 1983.3036792870700
2004-06-01 1908.4099454520199
2004-07-01 2130.1375590476800
2004-08-01 2280.5515122178000
2004-09-01 2950.1020621983503
2004-10-01 2008.0859833196898
2004-11-01 2091.5680906463103
2004-12-01 2469.9438002171900
2005-01-01 1983.9321419833300
2005-02-01 2010.8046914042800
2005-03-01 2289.3191038866103
2005-04-01 2155.5897293737400
2005-05-01 2353.1334149943400
2005-06-01 2590.0419367704103
2005-07-01 1961.4467663773103
2005-08-01 1799.6090398674103
2005-09-01 1883.7421376994300
2005-10-01 1966.7434858591100
2005-11-01 1996.0652885414002
2005-12-01 1656.8381651311902
2006-01-01 1959.3431478445800
2006-02-01 1906.7307109415500
2006-03-01 1654.6153273044300
2006-04-01 1548.1846993987801
2006-05-01 1608.6157845179200
2006-06-01 1475.2625816514599
2006-07-01 1258.4798462031700
2006-08-01 1431.6042055698301
2006-09-01 1436.4807702276200
2006-10-01 1339.1876303272100
2006-11-01 1470.8231617911401
2006-12-01 1216.3186625087800
2007-01-01 1288.5209999116400
2007-02-01 1590.7962816961099
2007-03-01 1412.7569636706698
2007-04-01 1147.7907245170200
2007-05-01 1515.4845781610502
2007-06-01 1266.4330269852999
2007-07-01 1290.9274210915900
2007-08-01 1164.7708299736600
2007-09-01 942.7801533719470
2007-10-01 970.2702186323199
2007-11-01 983.5649767425630
2007-12-01 906.3787763220830
2008-01-01 925.0301892019720
2008-02-01 821.8444572299420
2008-03-01 732.4473374684641
2008-04-01 792.7896398470481
2008-05-01 646.6734482201899
2008-06-01 768.6458104620030
2008-07-01 775.2136297238361
2008-08-01 762.2398632985610
2008-09-01 734.5710762227319
2008-10-01 1165.9944673754100
2008-11-01 614.9746503608250
2008-12-01 678.6424535264680
2009-01-01 611.3003810520590
2009-02-01 657.5815868536820
2009-03-01 672.4307072384290
2009-04-01 750.1814299914121
2009-05-01 606.8929015690380
2009-06-01 761.1392021432291
2009-07-01 835.1725461031490
2009-08-01 673.5504367191929
2009-09-01 855.0262107669611
2009-10-01 877.9262802258870
2009-11-01 806.9813975681600
2009-12-01 931.2390168105910
2010-01-01 825.8329720134110
2010-02-01 536.4749399121370
2010-03-01 911.9301931359890
2010-04-01 915.3014585701530
2010-05-01 737.1338026022510
2010-06-01 725.8894487343989
2010-07-01 719.7938735584600
2010-08-01 802.3830742860240
2010-09-01 787.6223314435690
2010-10-01 628.0461187467040
2010-11-01 798.8075420542880
2010-12-01 655.7678527164810
2011-01-01 749.7069332091890
2011-02-01 747.2505692319090
2011-03-01 754.2742588034350
2011-04-01 685.9535706219820
2011-05-01 804.1909230516560
2011-06-01 781.4516422090500
2011-07-01 794.6725933793300
2011-08-01 851.5873191094349
2011-09-01 787.4178382370039
2011-10-01 821.6839867465040
2011-11-01 744.3750161952400
2011-12-01 935.5544466269490
2012-01-01 896.1147837178790
2012-02-01 1082.6401497380500
2012-03-01 712.2605088235840
2012-04-01 702.0523225653560
2012-05-01 1056.3143902697600
2012-06-01 924.6517818340710
2012-07-01 879.8941816514090
2012-08-01 1022.3002927323599
2012-09-01 973.8183422504300
2012-10-01 969.8902478054880
2012-11-01 1078.2210963722000
2012-12-01 1089.0317973238900
2013-01-01 1106.9690697752600
2013-02-01 1320.2625656485200
2013-03-01 1267.7684923892200
2013-04-01 1329.1632142128901
2013-05-01 1257.1707398085400
2013-06-01 932.3893304983320
2013-07-01 1308.6230199007700
2013-08-01 1058.7334385660401
2013-09-01 1094.1665125099400
2013-10-01 1296.8731651855900
2013-11-01 1195.2533084350300
2013-12-01 1011.5411067584300
2014-01-01 1076.1682896239700
2014-02-01 1060.3186400607100
2014-03-01 1056.5758994908100
2014-04-01 1076.1301249252099
2014-05-01 1147.7752543924100
2014-06-01 1035.7089090464501
2014-07-01 1059.8225705798300
2014-08-01 1142.7229595727100
2014-09-01 1155.6377667229401
2014-10-01 1066.2643141509000
2014-11-01 1069.3868509307001
2014-12-01 953.8923811810120
2015-01-01 1026.6115042251200
2015-02-01 798.6034254834740
2015-03-01 944.3380917589169
2015-04-01 1033.7670887258600
2015-05-01 948.3030637964080
2015-06-01 1166.8527079180099
2015-07-01 1138.1988656945000
2015-08-01 1009.0227164283400
2015-09-01 1006.9964344010901
2015-10-01 1187.0695102984100
2015-11-01 973.8776859787480
2015-12-01 1209.8888003721001
2016-01-01 1129.9804518280300
2016-02-01 992.0894170984770
2016-03-01 1112.3643639369700
2016-04-01 1020.9821932843801
2016-05-01 1049.9354244465400
2016-06-01 1053.1146426704500
2016-07-01 973.2063700373550
2016-08-01 1256.7877903342400
2016-09-01 1083.9826669174302
2016-10-01 931.2364088673810
2016-11-01 1119.1745197333500
2016-12-01 1307.8012660046902
2017-01-01 1064.0875874699800
2017-02-01 1238.2582929626699
2017-03-01 1299.4191391974600
2017-04-01 1088.7766347745900
2017-05-01 1333.5679922276900
2017-06-01 1188.1351676681300
2017-07-01 1142.4376090987500
2017-08-01 1269.6867584592200
2017-09-01 1398.5602723601900
2017-10-01 1134.3566731718902
2017-11-01 1291.4089284102400
2017-12-01 958.4500056352240
2018-01-01 1245.0247385318100
2018-02-01 1144.2858379968900
2018-03-01 1125.3331916847900
2018-04-01 1228.7504030025500
2018-05-01 1113.2719085042402
2018-06-01 1137.8231867645698
2018-07-01 1202.2385140615600
2018-08-01 1093.4207869940300
2018-09-01 861.4410449910880
2018-10-01 1251.7401821525900
2018-11-01 1031.4126080452802
2018-12-01 1095.3798647026802
2019-01-01 1017.1066088133500
2019-02-01 1051.6611272057100
2019-03-01 1022.1770166527900
2019-04-01 1209.9363024764200
2019-05-01 1044.0608324728200
2019-06-01 1072.2596960372698
2019-07-01 1112.8156729063600
2019-08-01 1065.7799719832100
2019-09-01 967.6489664687911
2019-10-01 985.9263062354551
2019-11-01 1047.8988688207500
2019-12-01 926.9971022539701
2020-01-01 1075.5028916517100
2020-02-01 1165.6055233848700
2020-03-01 816.7905351681370
2020-04-01 865.7213585761040
2020-05-01 792.5528917164689
2020-06-01 984.2537514859920
2020-07-01 1130.3527821396901
2020-08-01 1050.5314676814098
2020-09-01 1254.5282768575698
2020-10-01 1330.7931993813400
2020-11-01 1225.5427432875802
2020-12-01 1291.6216386256199
2021-01-01 1328.5860883312100
2021-02-01 1111.6601555434000
2021-03-01 1226.2694015634000
2021-04-01 1062.7434424966700
2021-05-01 1067.6664970920099
2021-06-01 1088.3547761692300
2021-07-01 1023.8721586142999
2021-08-01 1025.7730997365400
2021-09-01 1075.0876375899100
2021-10-01 981.8447357153169
2021-11-01 1037.6325583792900
2021-12-01 1145.9841484895098
2022-01-01 989.0433312158881
2022-02-01 1144.4385802380900
2022-03-01 1260.2953370216100
2022-04-01 977.9251462697290
2022-05-01 1049.6682141581200
2022-06-01 990.3271000627870
2022-07-01 804.1185007296741
2022-08-01 865.8900605761130
2022-09-01 876.5089163050090
2022-10-01 851.0304482606050
2022-11-01 887.2828563183160
2022-12-01 742.5773929667461
2023-01-01 689.6074265275180
2023-02-01 815.3792460449570
2023-03-01 830.1921793083440
2023-04-01 879.0504267077521
2023-05-01 1115.7168292498400
2023-06-01 897.5494193595031
2023-07-01 739.2978650231059
2023-08-01 943.8984100488270
2023-09-01 831.1652616684020
2023-10-01 831.9053187221220
2023-11-01 806.2806290241009
2023-12-01 849.9159010000391
2024-01-01 982.6617624015060
2024-02-01 1023.2062025987700
2024-03-01 956.2263818184759
2024-04-01 1013.5784652531698
2024-05-01 920.9442549494240
2024-06-01 844.8503760649651
2024-07-01 1065.9746010618800
2024-08-01 906.9906962736779
2024-09-01 746.7403965615920
2024-10-01 989.5150937977470
2024-11-01 979.6033713026300

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