The Prince of Wales has begun working on a memorial to his late grandmother, the Queen Mother, at his "model village" in Dorset.
Poundbury was conceived by Prince Charles to inspire town planning
The prince has enlisted classical British architect Quinlan Terry to work on designs for Queen Mother's Square in Poundbury, near Dorchester.
Flats, social housing, shops, cafes and a small hotel are included in the plans as well as the possibility of a plaque.
The village has recently been criticised over its expansion plans.
A Clarence House spokesman said: "The Prince was very keen to name the next part of the development at Poundbury after his grandmother as a fitting tribute to somebody he held very dear."
Mr Terry said he was "honoured" to be involved in the project, which he said he began work on two years ago.
"It will be the central square in Poundbury," he said.
"People can meet there, shop, and have coffee in the centre of the conurbation. That's the thing that is so often lacking in these new towns and housing estates."
The plans are expected to go before West Dorset District Council in the next few months.
Other building work is already upsetting some residents of the village, which the Prince conceived and built on land owned by his Duchy of Cornwall estate in reaction to modern architecture.
A blueprint for new flats was rejected by West Dorset District Council last year and again at appeal.
The new mayor of Dorchester, Robin Potter, recently said large buildings "dominated" the Poundbury skyline and views from Maiden Castle, a nearby Iron Age fort, were at risk by further building work.