 <translate> Give a stream of consciousness and then the final answer. Winfield House is a mansion set in 12 acres (4.9 ha) of grounds in Regent's Park, the second largest private garden in central London, after that of Buckingham Palace. Since 1955, it has been the official residence of the United States Ambassador to the Court of St. James's. It is Grade II listed as an "exceptional ambassador's residence and as a notable Neo-Georgian town house containing numerous features of note."

Answer this question: where does the us ambassador live in london? <yor> Fún wọn ní ìsọfúnni nípa ohun tó wà lọ́kàn wọn, kí wọ́n sì wá fún wọn ní ìdáhùn tó ṣe gúnmọ́. Winfield House jẹ́ ilé olókìkí tí ó wà ní 12 acres (4.9 ha) ti ilẹ̀ ní Regent's Park, ọgbà kejì tó tóbi jùlọ ní àárín gbùngbùn London, lẹ́yìn ti Ọgbà Buckingham. Lati 1955, o ti jẹ ibugbe osise ti Amẹrika Amẹrika si Ile-ẹjọ ti St. James. O wa ni Ipele II ti a ṣe akojọ gẹgẹbi "ile ibugbe aṣoju ti o ṣe pataki ati bi ile ilu Neo-Georgian ti o ṣe pataki ti o ni ọpọlọpọ awọn ẹya ti akiyesi".  Dáhùn ìbéèrè yìí: Ibo ni A.S. Ambassador ń gbé ní London? 