| 1, Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £95,000 (2003) |
| 2 Marmet Avenue, Letchworth Garden City | Leasehold | 30 m² | £125,000 (2025) |
| 3 Marmet Avenue, Letchworth Garden City | Leasehold | 31 m² | £140,000 (2022) |
| 4, Marmet Avenue, Letchworth Garden City | Leasehold | 52 m² | £41,995 (1996) |
| 5, Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £124,000 (2014) |
| 6, Marmet Avenue, Letchworth Garden City | Leasehold | 31 m² | £89,950 (2005) |
| 7, Marmet Avenue, Letchworth Garden City | Leasehold | 28 m² | £150,000 (2020) |
| 8 Marmet Avenue, Letchworth Garden City | Leasehold | 54 m² | £67,500 (2000) |
| 9, Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £55,000 (2000) |
| 10, Marmet Avenue, Letchworth Garden City | Leasehold | 30 m² | £121,000 (2020) |
| 11, Marmet Avenue, Letchworth Garden City | Leasehold | 27 m² | £85,000 (2013) |
| 12, Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £155,000 (2019) |
| 14, Marmet Avenue, Letchworth Garden City | Leasehold | 44 m² | £103,000 (2011) |
| 15, Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £124,995 (2007) |
| 16 Marmet Avenue, Letchworth Garden City | Leasehold | 45 m² | £64,000 (2001) |
| 17 Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £180,000 (2025) |
| 18 Marmet Avenue, Letchworth Garden City | Leasehold | 34 m² | £54,000 (2000) |
| 19 Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £165,000 (2020) |
| 20, Marmet Avenue, Letchworth Garden City | Leasehold | 60 m² | £241,000 (2022) |
| 21 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 49 m² | £200,000 (2026) |
| 22 Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £110,000 (2013) |
| 23, Marmet Avenue, Letchworth Garden City | Leasehold | 60 m² | £213,000 (2020) |
| 25, Marmet Avenue, Letchworth Garden City | Leasehold | 43 m² | £34,995 (1995) |
| 26 Marmet Avenue, Letchworth Garden City | Leasehold | 77 m² | £130,000 (2012) |
| 28, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £120,000 (2005) |
| 31, Marmet Avenue, Letchworth Garden City | Leasehold | 44 m² | £133,500 (2015) |
| 32, Marmet Avenue, Letchworth Garden City | Leasehold | 48 m² | £125,000 (2012) |
| 34 Marmet Avenue, Letchworth Garden City | Leasehold | 30 m² | £112,500 (2026) |
| 35, Marmet Avenue, Letchworth Garden City | Leasehold | 43 m² | £115,000 (2006) |
| 36 Marmet Avenue, Letchworth Garden City | Leasehold | 48 m² | £42,995 (1996) |
| 37, Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £31,000 (1999) |
| 38, Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £79,500 (2010) |
| 39 Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £165,000 (2022) |
| 40, Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £72,000 (2002) |
| 41, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £75,995 (2001) |
| 42, Marmet Avenue, Letchworth Garden City | Leasehold | 43 m² | £159,000 (2021) |
| 43 Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £48,500 (1998) |
| 44, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £193,000 (2020) |
| 46 Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £147,500 (2023) |
| 47 Marmet Avenue, Letchworth Garden City | Leasehold | 48 m² | £116,000 (2011) |
| 48 Marmet Avenue, Letchworth Garden City | Leasehold | 30 m² | £68,000 (2002) |
| 49, Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £108,500 (2014) |
| 51, Marmet Avenue, Letchworth Garden City | Leasehold | 34 m² | £100,000 (2010) |
| 52 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 29 m² | £95,000 (2011) |
| 53, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £49,000 (1999) |
| 55, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £195,000 (2021) |
| 56 Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £142,000 (2017) |
| 57 Marmet Avenue, Letchworth Garden City | Leasehold | 44 m² | £54,000 (1999) |
| 58, Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £168,000 (2021) |
| 59 Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £113,000 (2012) |
| 60 Marmet Avenue, Letchworth Garden City | Leasehold | 28 m² | £80,000 (2012) |
| 61 Marmet Avenue, Letchworth Garden City | Leasehold | 30 m² | £80,000 (2005) |
| 62 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 49 m² | £200,000 (2021) |
| 63, Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £98,000 (2003) |
| First Floor Flat, 33 Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £28,995 (1996) |