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St. Johns, Scandrett Street

A church lain derelict since being damaged by bombing during the Second World War. Utilising the full range of JNP Group engineering skills, the building was successfully converted to provide new apartments within the historic facade whilst stabilising and renovating the Clock Tower.

Old burials and coffins had to be sensitively relocated by specialists, before the land could be decontaminated and declared free of anthrax.

The excavations proved to be difficult and deeper than anticipated leading to settlement within the site and required JNP Group to design temporary restraints/supports to prevent collapse.

The existing tower was retained along with the crypt walls which retained Scandrett Street and Green Bank pavements/roads. These walls had to be temporarily propped during demolition of the crypt roof slab.

The proposed foundation design had to consider the high water table from the nearby River Thames, the possible migration of contamination from historic burials and the stability of the adjacent highways and buildings, particularly the listed clock tower. The base slab of the crypt was retained and punched through at various positions to accommodate new piles to support the new raft slab. The piling was carried out very carefully to avoid affecting the retained clock tower, crypt walls and their historic foundations.

St. Johns, Scandrett Street

Design Services Provided

  • Pad and strip foundations
  • Structural steelwork
  • Load-bearing masonry
  • External works
  • Foul & surface water drainage