| 1 Portland Avenue, Southend-On-Sea, Southend-On-Sea | Leasehold | 61 m² | £107,500 (2010) |
| 1A Portland Avenue, Southend-On-Sea | Leasehold | 76 m² | £153,000 (2023) |
| 2 Portland Avenue, Southend-On-Sea | - | 60 m² | - |
| 2A Portland Avenue, Southend-On-Sea | Leasehold | 61 m² | £97,000 (2004) |
| 3 Portland Avenue, Southend-On-Sea | Freehold | 145 m² | £189,500 (2004) |
| 4 Portland Avenue, Southend-On-Sea | - | 51 m² | - |
| 4A Portland Avenue, Southend-On-Sea | Leasehold | 78 m² | £140,000 (2025) |
| 6, Portland Avenue, Southend-On-Sea | Freehold | 103 m² | £190,000 (2010) |
| 10 Portland Avenue, Southend-On-Sea | Freehold | 105 m² | £235,000 (2017) |
| 11 Portland Avenue, Southend-On-Sea | Freehold | 160 m² | £425,000 (2022) |
| 14 Portland Avenue, Southend-On-Sea | Freehold | 94 m² | £360,000 (2025) |
| 15 Portland Avenue, Southend-On-Sea | Freehold | 138 m² | £245,000 (2015) |
| 16, Portland Avenue, Southend-On-Sea | Freehold | 148 m² | £340,000 (2023) |
| 17 Portland Avenue, Southend-On-Sea | Leasehold | 66 m² | £208,000 (2022) |
| 18, Portland Avenue, Southend-On-Sea | Freehold | 104 m² | £165,000 (2010) |
| 19, Portland Avenue, Southend-On-Sea | Freehold | 129 m² | £320,000 (2019) |
| 20, Portland Avenue, Southend-On-Sea | Freehold | 102 m² | £175,000 (2014) |
| 21 Portland Avenue, Southend-On-Sea | Freehold | 100 m² | £300,000 (2024) |
| 22, Portland Avenue, Southend-On-Sea | Freehold | 113 m² | £295,000 (2019) |
| 23, Portland Avenue, Southend-On-Sea | Freehold | 120 m² | £194,000 (2010) |
| 24 Portland Avenue, Southend-On-Sea | Freehold | 111 m² | £180,000 (2015) |
| 25 Portland Avenue, Southend-On-Sea | Freehold | 99 m² | £233,000 (2008) |
| 26, Portland Avenue, Southend-On-Sea | Freehold | 137 m² | £350,000 (2021) |
| 27 Portland Avenue, Southend-On-Sea | Freehold | 116 m² | £283,000 (2025) |
| 28, Portland Avenue, Southend-On-Sea | Freehold | 133 m² | £38,475 (2002) |
| 29 Portland Avenue, Southend-On-Sea | Freehold | 101 m² | £180,000 (2010) |
| 30, Portland Avenue, Southend-On-Sea | Freehold | 129 m² | £337,000 (2018) |
| 31 Portland Avenue, Southend-On-Sea | Freehold | 104 m² | £90,000 (2001) |
| 33, Portland Avenue, Southend-On-Sea | - | 50 m² | - |
| 33A, Portland Avenue, Southend-On-Sea | Leasehold | 49 m² | £82,000 (2003) |
| 35 Portland Avenue, Southend-On-Sea | Freehold | 97 m² | £270,000 (2019) |