Home›1799 establishments in Washington, D.C.›オクタゴンハウス🌐日本語EnglishEspañolFrançais中文日本語EntityQ7754672· pop 5· linked from 516 articlesオクタゴンハウスhistoric house in Washington, D.C.Wikidata factsImageOctagon house.jpgShow 4 more factsfloors above ground3Commons categoryOctagon House (Washington, D.C.)street address1799 New York Avenue NW, Washington, DC 20006inception1799-00-00Sources (5)wikidata.orgnpgallery.nps.govarchinform.neten.wikipedia.orgOn the mapAvailable in 4 languagesEspañolFrançaisUrduvia Wikidata sitelinks · CC0ConnectionsGeorgetownEntityWilliam ThorntonEntityCategories1799 establishments in Washington, D.C.Buildings and structures in Foggy BottomFederal architecture in Washington, D.C.Historic American Buildings Survey in Washington, D.C.Historic house museums in Washington, D.C.Homes of United States Founding FathersHouses completed in 1799Houses on the National Register of Historic Places in Washington, D.C.James MadisonNational Historic Landmarks in Washington, D.C.