The scheme, once it is eventually finished, will include new homes and improved river access.
This phase of works includes site hoardings and fencing, temporary flood defences and asbestos removal.
Twickenham Riverside Trust was given a 125-year lease on Diamond Jubilee Garden in 2014.
The Trust opposed the council’s application to acquire the land under a compulsory purchase order in June 2023, but it was approved that November.
