Christchurch mayor Bob Parker says philanthropist Lady Diana Isaac was a wonderful friend who has left a great mark on the city.
Lady Isaac died at her home on Friday night. She was 91.
Born in England, she settled with her husband, Neil Isaac, in New Zealand in 1950 and the couple founded the Isaac Construction Company.
Mr Parker says in October this year, he had the pleasure of making Lady Isaac a New Zealand citizen at what he says was a special ceremony celebrating her many achievements.
He says Lady Isaac was one of the most generous people, gifting to Christchurch the Isaac Theatre, a large park, as well as numerous contributions to universities, the arts and conservation.
The mayor says she was a generous woman with a great sense of humour who will be greatly missed.
Prime Minister John Key also paid tribute, describing Lady Isaac as an outstanding champion for Canterbury, from her early philanthropic work with her late husband until the time of her death.