Renovation Projects

Professional Engineering Response


Historic Cathedral Office restored for modern use

Project in brief
Saint Patrick's Cathedral Office is a well known historic landmark, located at 35a Upper Kevin Street, dating from the nineteenth century. The distinctive façade was partially stabilised in the 1970s, but recent refurbishment of the roof revealed significant cracking and instability. Our brief included the Inspection of this protected structure, and the design of appropriate remedial works. The inspection and formulation of remedial work was undertaken in a very short timeframe in order to facilitate the Client's successful application for grant assistance.


Project 3857: Conservation Engineering
Cathedral Office
Client: St. Patrick's Cathedral
Architects: Benjamin + Beauchamp
Value: € 3.3k (2008)

Project scope:
  • Restoration of historic structure
  • Repair and renovation for modern use (present and future)
   Download Project PDF


Key features

  • Contour survey of the façade to pinpoint areas of structural instability and deficiency. This allowed us to minimise structural intervention by restricting essential repairs to locations of prime structural importance
  • Stabilisation of the façade at first and second floor levels using slim profile straps fixed within the floor thickness and tied by stainless steel anchors carefully grouted into the masonry. This "invisible" repair rendered the 1970s plates redundant, but the plates were strategically left in place to avoid planning issues
  • Stabilisation of the gable feature using a lightweight structural steel frame fixed within the roof space
  • Repair of external cracks using stainless steel heliforce bars carefully grouted into masonry joints and made good with lime mortar

Historical Renovation

At LeeMcCullough we have exceptional experience of revitalising existing buildings, which is often more complex than the structural engineering of new buildings.

Over many projects we have addressed and resolved a wide range of issues, including:

  • Strengthening historical joists and beams to carry increased loading
  • Masonry Decay/Delamination
  • Threading modern services into old structures

At LeeMcCullough we always seek to identify and resolve issues early, innovatively address demanding building difficulties and deliver our solutions on time and cost efficiently.

When it comes to renovation and refurbishment, anticipating and resolving engineering issues effectively is the key to a successful outcome.