| 1, Penn Way, Welwyn Garden City | Freehold | 113 m² | £274,950 (2011) |
| 3 Penn Way, Welwyn Garden City | Freehold | 111 m² | £404,500 (2017) |
| 5, Penn Way, Welwyn Garden City | Freehold | 113 m² | £420,000 (2018) |
| 7, Penn Way, Welwyn Garden City | Freehold | 113 m² | £450,000 (2021) |
| 9, Penn Way, Welwyn Garden City | Freehold | 113 m² | £405,000 (2017) |
| 11, Penn Way, Welwyn Garden City | Freehold | 113 m² | £305,000 (2011) |
| 13 Penn Way, Welwyn Garden City | Freehold | 111 m² | £475,000 (2023) |
| 15, Penn Way, Welwyn Garden City | Freehold | 113 m² | £390,000 (2015) |
| 17, Penn Way, Welwyn Garden City | Freehold | 113 m² | £305,000 (2012) |
| 19 Penn Way, Welwyn Garden City | Freehold | 110 m² | £470,000 (2023) |
| 21, Penn Way, Welwyn Garden City | Freehold | 113 m² | £305,000 (2012) |
| 23, Penn Way, Welwyn Garden City | Freehold | 113 m² | £315,000 (2012) |
| 25, Penn Way, Welwyn Garden City | Freehold | 113 m² | £461,000 (2018) |
| 27, Penn Way, Welwyn Garden City | Freehold | 113 m² | £440,000 (2018) |
| 29, Penn Way, Welwyn Garden City | - | 113 m² | - |
| 31 Penn Way, Welwyn Garden City | Freehold | 112 m² | £418,000 (2019) |
| 33, Penn Way, Welwyn Garden City | - | 48 m² | - |
| 35 Penn Way, Welwyn Garden City | - | 57 m² | - |
| 37, Penn Way, Welwyn Garden City | - | 48 m² | - |
| 39 Penn Way, Welwyn Garden City | - | 69 m² | - |
| 41 Penn Way, Welwyn Garden City | Leasehold | 67 m² | £320,000 (2020) |
| 43 Penn Way, Welwyn Garden City | Leasehold | 72 m² | £310,000 (2019) |
| 45 Penn Way, Welwyn Garden City | Leasehold | 67 m² | £305,000 (2024) |
| 47 Penn Way, Welwyn Garden City | Leasehold | 68 m² | £290,000 (2018) |
| 49 Penn Way, Welwyn Garden City | Freehold | 70 m² | £330,000 (2023) |
| 51 Penn Way, Welwyn Garden City | Leasehold | 68 m² | £250,000 (2015) |