[5] In the last decade of his life he designed two churches, St. Mark's at Björkhagen in Stockholm (1956) and St. Peter's at Klippan in Scania (1963–66), which revived his career in architecture.

It is square in shape, suggesting a more intimate ritual in the tradition of circonstantes (standing in a circle), which harkens back to early Christianity.

These characteristics are expressed beautifully in the detailing of the buildings, the choice of materials, the quality of light and the spatial articulation.

[8] He continued to work at competition proposals and furniture designs until shortly before his death in Lund, Sweden during 1975.

In an obituary published in The Architectural Review, James Codrington praises Lewerentz's buildings for their "daring, often rugged use of materials" and their "indefinable atmosphere" and "sense of place.