| 16 Sylvandale, Welwyn Garden City | Freehold | 73 m² | £300,750 (2010) |
| 18, Sylvandale, Welwyn Garden City | Freehold | 113 m² | £560,000 (2019) |
| 20 Sylvandale, Welwyn Garden City, Welwyn Garden City | - | 91 m² | - |
| 22, Sylvandale, Welwyn Garden City | Freehold | 107 m² | £365,000 (2010) |
| 28, Sylvandale, Welwyn Garden City | Freehold | 97 m² | £320,000 (2012) |
| 30 Sylvandale, Welwyn Garden City | Freehold | 90 m² | £490,000 (2019) |
| 32, Sylvandale, Welwyn Garden City | Freehold | 91 m² | £520,000 (2021) |
| 34 Sylvandale, Welwyn Garden City | Freehold | 83 m² | £552,000 (2022) |
| 36 Sylvandale, Welwyn Garden City | Freehold | 83 m² | £535,000 (2023) |
| 38, Sylvandale, Welwyn Garden City | - | 81 m² | - |
| 54, Sylvandale, Welwyn Garden City | Freehold | 91 m² | £515,000 (2021) |
| 56, Sylvandale, Welwyn Garden City | Freehold | 96 m² | £249,950 (2006) |
| 60, Sylvandale, Welwyn Garden City | Freehold | 79 m² | £527,000 (2024) |
| 82, Sylvandale, Welwyn Garden City | Freehold | 95 m² | £310,000 (2011) |
| 84, Sylvandale, Welwyn Garden City | Freehold | 89 m² | £295,000 (2006) |
| 89, Sylvandale, Welwyn Garden City | Freehold | 111 m² | £362,500 (2011) |
| 90, Sylvandale, Welwyn Garden City | - | 211 m² | - |
| 91 Sylvandale, Welwyn Garden City | Freehold | 107 m² | £370,000 (2012) |
| 93, Sylvandale, Welwyn Garden City | Freehold | 91 m² | £615,000 (2022) |
| 94 Sylvandale, Welwyn Garden City | - | 93 m² | - |