| 64, Marmet Avenue, Letchworth Garden City | Leasehold | 21 m² | £130,000 (2026) |
| 65, Marmet Avenue, Letchworth Garden City | Leasehold | 30 m² | £24,900 (1998) |
| 66 Marmet Avenue, Letchworth Garden City | Leasehold | 51 m² | £200,000 (2023) |
| 67, Marmet Avenue, Letchworth Garden City | Leasehold | 40 m² | £160,000 (2020) |
| 68 Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £135,000 (2017) |
| 69 Marmet Avenue, Letchworth Garden City | Leasehold | 32 m² | £122,500 (2016) |
| 70, Marmet Avenue, Letchworth Garden City | Leasehold | 48 m² | £127,000 (2010) |
| 71 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 39 m² | £115,000 (2014) |
| 72 Marmet Avenue, Letchworth Garden City | Leasehold | 52 m² | £200,000 (2016) |
| 73, Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £156,000 (2019) |
| 74, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £215,000 (2025) |
| 75, Marmet Avenue, Letchworth Garden City | Leasehold | 55 m² | £112,500 (2003) |
| 76 Marmet Avenue, Letchworth Garden City | Leasehold | 44 m² | £105,000 (2012) |
| 77 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 54 m² | £188,000 (2022) |
| 78 Marmet Avenue, Letchworth Garden City | Leasehold | 43 m² | £185,000 (2023) |
| 80 Marmet Avenue, Letchworth Garden City | Leasehold | 44 m² | £175,000 (2022) |
| 81, Marmet Avenue, Letchworth Garden City | Leasehold | 43 m² | £182,500 (2019) |
| 82, Marmet Avenue, Letchworth Garden City | Leasehold | 78 m² | £215,000 (2019) |
| 83, Marmet Avenue, Letchworth Garden City | Leasehold | 41 m² | £123,500 (2008) |
| 84 Marmet Avenue, Letchworth Garden City | Leasehold | 46 m² | £130,000 (2013) |
| 85, Marmet Avenue, Letchworth Garden City | Leasehold | 45 m² | £125,000 (2015) |
| 86 Marmet Avenue, Letchworth Garden City | Leasehold | 50 m² | £233,000 (2025) |
| 87 Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £124,500 (2013) |
| 88 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 38 m² | £172,000 (2023) |
| 89 Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £145,000 (2014) |
| 90 Marmet Avenue, Letchworth Garden City | Leasehold | 44 m² | £118,000 (2014) |
| 91, Marmet Avenue, Letchworth Garden City | Leasehold | 50 m² | £152,450 (2015) |
| 92, Marmet Avenue, Letchworth Garden City | Leasehold | 31 m² | £125,000 (2020) |
| 93 Marmet Avenue, Letchworth Garden City | Leasehold | 29 m² | £155,000 (2022) |
| 95 Marmet Avenue, Letchworth Garden City | Leasehold | 48 m² | £135,000 (2006) |
| 96 Marmet Avenue, Letchworth Garden City | Leasehold | 31 m² | £111,000 (2019) |
| 97 Marmet Avenue, Letchworth Garden City | Leasehold | 28 m² | £26,995 (1996) |
| 98 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 38 m² | £33,495 (1996) |
| 99, Marmet Avenue, Letchworth Garden City | Leasehold | 51 m² | £104,950 (2002) |
| 100, Marmet Avenue, Letchworth Garden City | Leasehold | 31 m² | £45,000 (2001) |
| 101 Marmet Avenue, Letchworth Garden City | Leasehold | 28 m² | £98,000 (2006) |
| 102 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 38 m² | £180,000 (2025) |
| 103, Marmet Avenue, Letchworth Garden City | Leasehold | 45 m² | £126,000 (2015) |
| 104, Marmet Avenue, Letchworth Garden City | Leasehold | 45 m² | £53,240 (1999) |
| 105, Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £95,000 (2003) |
| 106, Marmet Avenue, Letchworth Garden City | Leasehold | 54 m² | £41,995 (1996) |
| 108, Marmet Avenue, Letchworth Garden City | Leasehold | 49 m² | £177,500 (2016) |
| 110, Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £184,000 (2023) |
| 111 Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £33,995 (1996) |
| 112 Marmet Avenue, Letchworth Garden City | Leasehold | 38 m² | £172,000 (2021) |
| 114 Marmet Avenue, Letchworth Garden City | Leasehold | 37 m² | £175,000 (2023) |
| 115 Marmet Avenue, Letchworth Garden City | Leasehold | 39 m² | £118,000 (2015) |
| 116 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 38 m² | £160,000 (2021) |
| 117 Marmet Avenue, Letchworth Garden City, Letchworth Garden City | Leasehold | 39 m² | £157,000 (2025) |
| 119 Marmet Avenue, Letchworth Garden City | Leasehold | 74 m² | £356,000 (2021) |
| 120, Marmet Avenue, Letchworth Garden City | Leasehold | 94 m² | £111,000 (2000) |
| 121, Marmet Avenue, Letchworth Garden City | Leasehold | 85 m² | £290,000 (2016) |
| 123, Marmet Avenue, Letchworth Garden City | Leasehold | 73 m² | £322,000 (2020) |
| 124 Marmet Avenue, Letchworth Garden City | Leasehold | 107 m² | £400,000 (2024) |
| 125, Marmet Avenue, Letchworth Garden City | Leasehold | 72 m² | £73,995 (1996) |
| 126, Marmet Avenue, Letchworth Garden City | Leasehold | 64 m² | £400,000 (2023) |
| 128, Marmet Avenue, Letchworth Garden City | Leasehold | 65 m² | £88,000 (1998) |