Grand Designs Australia: Season 12
This season started on October 16, 2025. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Cygnet Earthship · 57 min | |
| 2 | Horse Shoe Hill · 57 min | |
| 3 | Rye Cave · 58 min | |
| 4 | Dover Heights · 57 min | |
| 5 | Blue Mountains Tardis · 56 min | |
| 6 | Sherwood River · 58 min | |
| 7 | Yass Earth Berm · 57 min | |
| 8 | Interlaken Lodge · 57 min | |
| 9 | Hunter Valley · 57 min | |
| 10 | Yarraville Pigeon · 55 min |
