More substantial renovation was carried out in 2003-2004, including earthquake strengthening.

The house most recently underwent substantial renovations during the spring of 2006.

The station since underwent substantial renovations which were concluded by early 2007.

In 1875, the house went underwent substantial renovations that increased its size.

A substantial renovation was necessary to make the space livable.

In the early 20th century it underwent substantial renovations, particularly of its interior.

Another substantial renovation, with a cost estimate of $5 million dollars was undertaken beginning in December, 2011.

Plans for substantial future renovations and additions have also been drawn.

This probably should have been done by the builder at the time of construction or during any substantial renovation.

The building had a substantial renovation in 1989, which involved the creation of a new lobby and elevator system.