During the Second World War years the firm was signatory to a "Basis of a Federation of Agreements" with other legal practices around town. This was the only way to try and maintain a fully functioning operation when key staff members were away on active service. It detailed the manner in which clients would be shared and income divided in order for the participating practices to survive. Ultimately clients were lost as the firm had a significant number of partners absent and it took years to rebuild the practice to its prominent position within the province.
The firm grew considerably over the latter part of the 20th century and this necessitated major changes to Temple Chambers. One design feature not easily remedied was the overall height of the Temple Chambers building from the road - in the 1920's a fear of flood meant many new buildings of the day were built with floors above flood height - so it remains today.
In 1983 the first major rebuild occurred when the firm, then called Lundon Radich Dew, bought the magnificent old ANZ building next door to Temple Chambers. Ian Athfield of Athfield Architects was contracted to incorporate architectural elements of this condemned building into an expansion of the Temple Chambers premises. The result is a lasting reminder of another of Blenheim's fine old buildings.
By 2003, as the firm continued to grow, other major renovations and extensions were required and local architect Tim Barton, made further complementary changes to the building, as it stands today.