A house was built on the National Eisteddfod Maes at Pontypridd in just 36 minutes
An audience gathered as a team of young people and an experienced builder slotted panels together to create the house and applauded when smoke emerged from the chimney.
It was part of a project to recreate Welsh folklore of building a house overnight as part of art installation and to spark conversations about housing, the environment and climate change.
The custom of Tŷ Unnos, which translates into English as house in one night, was a legend across Wales between the 17th and 19th centuries.
It held that, if a squatter could build a house on common land between dusk and dawn, then the occupier could lay claim to the legal freehold of the property and may farm the land around as far as they can throw an axe from the front door..
Amid the sounds of drilling and hammering on the Maes the house was assembled like a jigsaw with a sloping roof, chimney, and a traditional wood burning stove being put into place.
The project involved a group of young people from Rhondda Cynon Taf and was led by Citrus Arts who are based in Hopkinstown near Pontypridd.
Citrus Arts' Artistic Director James Doyle Roberts said the young people taking part in the project had limited experience of working in the arts and cultural industry and have faced many barriers to developing their paths because of financial, location and access.
The Tŷ Unnos custom still resonated, with some participants having faced "housing insecurity".
"It is something that is very much on people's minds, that they are conscious about. I also hope the project will raise awareness about the environment and climate change," he said.
The house built on the Eisteddfod Maes was designed by architect Tabitha Pope.
She used sustainable materials for the build and plans on how to reuse and recycle the elements for other projects was part of the design process.
Assisting the project were local builders Frowen Brothers and lighting technicians T&M Technical.