St. Helena Catholic Church Clayton, GA Home » Our Work » St. Helena Catholic Church Wall Columbaria– Located in Clayton, GA– Niche Fronts Finished in Polished Picasso Granite– Masonry Surrounds– 152 – 12″ x 12″ Companion Niches– 304 Total Urn SpacesCompleted in 2016 ARCHITECTRoss Landscape Architecture, PLLC of Highlands, NC Location