| 3 Thewlis Avenue, Sleaford | Freehold | 144 m² | £335,000 (2024) |
| 4 Thewlis Avenue, Sleaford | Freehold | 107 m² | £280,250 (2025) |
| 5 Thewlis Avenue,, Sleaford | Freehold | 127 m² | £332,000 (2024) |
| 6 Thewlis Avenue, Sleaford | Freehold | 127 m² | £340,000 (2025) |
| 7 Thewlis Avenue, Sleaford | Freehold | 79 m² | £230,000 (2024) |
| 8 Thewlis Avenue, Sleaford | Freehold | 127 m² | £323,000 (2025) |
| 9 Thewlis Avenue, Sleaford | Freehold | 79 m² | £223,100 (2025) |
| 10 Thewlis Avenue, Sleaford | Freehold | 85 m² | £250,000 (2024) |
| 11 Thewlis Avenue, Sleaford | Freehold | 63 m² | £185,250 (2024) |
| 12 Thewlis Avenue, Sleaford | Freehold | 127 m² | £315,000 (2025) |
| 14 Thewlis Avenue, Sleaford | Freehold | 85 m² | £225,000 (2024) |
| 15 Thewlis Avenue, Sleaford | Freehold | 63 m² | £180,500 (2024) |
| 16 Thewlis Avenue, Sleaford, Lincolnshire | Freehold | 85 m² | £235,000 (2024) |
| 17 Thewlis Avenue, Sleaford, Lincolnshire | - | 79 m² | - |
| 19 Thewlis Avenue, Sleaford, Lincolnshire | - | 79 m² | - |
| 21 Thewlis Avenue, Sleaford | - | 79 m² | - |
| 23 Thewlis Avenue, Sleaford | - | 79 m² | - |
| 25 Thewlis Avenue, Sleaford | - | 63 m² | - |
| 27 Thewlis Avenue, Sleaford, Lincolnshire | - | 63 m² | - |
| 29 Thewlis Avenue, Sleaford | - | 63 m² | - |
| 31 Thewlis Avenue, Sleaford | Freehold | 63 m² | £185,000 (2024) |
| 33 Thewlis Avenue, Sleaford | Freehold | 63 m² | £175,750 (2024) |
| 35 Thewlis Avenue, Sleaford | - | 63 m² | - |
| 37 Thewlis Avenue, Lincolnshire | - | 63 m² | - |
| 39 Thewlis Avenue, Sleaford, Lincolnshire | - | 63 m² | - |
| 41 Thewlis Avenue, Lincolnshire | - | 63 m² | - |
| 43 Thewlis Avenue, Sleaford | - | 63 m² | - |
