Some new knowledge brought by 3D digitizations of the chapel of Kerfons (Brittany)

•The chapel of Kerfons in Brittany, recognized as a Historic Monument since 1910, showcases a remarkable flamboyant Gothic rood screen made of polychrome wood.•Recent 3D scanning using laser scanners revealed previously unknown plans and orthophotographs, shedding light on archaeological mysteries surrounding the chapel's positioning and roof edges.•The UAV survey conducted around the sculpted statues and exterior elements contributes to the preservation of the chapel and encourages similar digitization approaches for other buildings with limited funding.