Date,Address,Postcode,Price,Type,Ownership,NewBuild,SaleType 2024-04-19,"Flat 2P, Portman Mansions, Chiltern Street, London",W1U 6NR,1450000,Flat,"Leasehold",No,Standard 2017-03-31,"Flat 2Z, Portman Mansions, Chiltern Street, London",W1U 6NR,2435000,Flat,"Leasehold",No,Non-standard 2015-10-02,"Flat 2Z, Portman Mansions, Chiltern Street, London",W1U 6NR,1875000,Flat,"Leasehold",No,Non-standard 2014-08-19,"Flat 2F, Portman Mansions, Chiltern Street, London",W1U 6NR,1999999,Flat,"Leasehold",No,Standard 2010-02-26,"Flat 2G, Portman Mansions, Chiltern Street, London",W1U 6NR,1200000,Flat,"Leasehold",No,Standard 2009-11-25,"Flat 2B, Portman Mansions, Chiltern Street, London",W1U 6NR,455000,Flat,"Leasehold",No,Standard 2007-11-14,"Flat 2F, Portman Mansions, Chiltern Street, London",W1U 6NR,1100000,Flat,"Leasehold",No,Standard 2007-06-19,"Flat 2K, Portman Mansions, Chiltern Street, London",W1U 6NR,1250000,Flat,"Leasehold",No,Standard 2007-03-14,"Penthouse 2, Portman Mansions, Chiltern Street, London",W1U 6NR,625000,Flat,"Leasehold",No,Standard 2007-01-31,"Flat 2Q, Portman Mansions, Chiltern Street, London",W1U 6NR,325000,Flat,"Leasehold",No,Standard 2005-09-08,"Flat 2K, Portman Mansions, Chiltern Street, London",W1U 6NR,550000,Flat,"Leasehold",No,Standard 2005-08-04,"Flat 2Q, Portman Mansions, Chiltern Street, London",W1U 6NR,400000,Flat,"Leasehold",No,Standard 2004-07-19,"Penthouse 6, Portman Mansions, Chiltern Street, London",W1U 6NR,505000,Flat,"Leasehold",No,Standard 2004-03-17,"Flat 2Q, Portman Mansions, Chiltern Street, London",W1U 6NR,450000,Flat,"Leasehold",No,Standard 2003-10-23,"Flat 2F, Portman Mansions, Chiltern Street, London",W1U 6NR,530000,Flat,"Leasehold",No,Standard 2003-01-09,"Flat 2C, Portman Mansions, Chiltern Street, London",W1U 6NR,590000,Flat,"Leasehold",No,Standard 2002-11-21,"Flat 2P, Portman Mansions, Chiltern Street, London",W1U 6NR,420000,Flat,"Leasehold",No,Standard 2002-11-04,"Penthouse 4, Portman Mansions, Chiltern Street, London",W1U 6NR,440000,Flat,"Leasehold",No,Standard 2002-08-21,"Flat 2G, Portman Mansions, Chiltern Street, London",W1U 6NR,695000,Flat,"Leasehold",No,Standard 2002-04-09,"Flat 2S, Portman Mansions, Chiltern Street, London",W1U 6NR,385000,Flat,"Leasehold",No,Standard 2002-02-22,"Flat 2P, Portman Mansions, Chiltern Street, London",W1U 6NR,225000,Flat,"Leasehold",No,Standard 2001-04-04,"Flat 2B, Portman Mansions, Chiltern Street, London",W1U 6NR,330000,Flat,"Leasehold",No,Standard 2000-07-06,"Flat 2G, Portman Mansions, Chiltern Street, London",W1U 6NR,430000,Flat,"Leasehold",No,Standard 2000-06-22,"Flat 2C, Portman Mansions, Chiltern Street, London",W1U 6NR,489300,Flat,"Leasehold",No,Standard 2000-04-28,"Penthouse 4, Portman Mansions, Chiltern Street, London",W1U 6NR,355000,Flat,"Leasehold",No,Standard 2000-02-04,"Penthouse 4, Portman Mansions, Chiltern Street, London",W1U 6NR,335000,Flat,"Leasehold",No,Standard 1999-06-25,"Penthouse 4, Portman Mansions, Chiltern Street, London",W1U 6NR,275000,Flat,"Leasehold",No,Standard 1999-05-27,"Flat 2F, Portman Mansions, Chiltern Street, London",W1U 6NR,335000,Flat,"Leasehold",No,Standard 1998-10-02,"Penthouse 6, Portman Mansions, Chiltern Street, London",W1U 6NR,248000,Flat,"Leasehold",No,Standard 1998-09-28,"Flat 2Q, Portman Mansions, Chiltern Street, London",W1U 6NR,200000,Flat,"Leasehold",No,Standard 1998-05-13,"Flat 2S, Portman Mansions, Chiltern Street, London",W1U 6NR,210000,Flat,"Leasehold",No,Standard 1997-12-15,"Flat 2T, Portman Mansions, Chiltern Street, London",W1U 6NR,122000,Flat,"Leasehold",No,Standard 1997-09-17,"Flat 2A, Portman Mansions, Chiltern Street, London",W1U 6NR,250000,Flat,"Leasehold",No,Standard 1996-11-01,"Flat 2Z, Portman Mansions, Chiltern Street, London",W1U 6NR,224000,Flat,"Leasehold",No,Standard 1995-09-01,"Flat 2F, Portman Mansions, Chiltern Street, London",W1U 6NR,180000,Flat,"Leasehold",No,Standard 1995-07-14,"Flat 2C, Portman Mansions, Chiltern Street, London",W1U 6NR,200000,Flat,"Leasehold",No,Standard