Neighborhoods are always changing, sometimes gradually & sometimes quickly. There are a lot of nice old houses in Kitsilano that are worth preserving. In several cases, infill developments can occur without having to teardown the older buildings.
https://dailyhive.com/vancouver/vancouver-nimby-kitsilano-2560-trafalgar-street
It seems that not enough people in the neighborhood were allowed to properly voice their concerns.
https://www.shapeyourcity.ca/2560-2580-trafalgar-st-2
https://vancouver.ca/news-calendar/kitsilano.aspx
https://en.wikipedia.org/wiki/Kitsilano_Beach
https://www.destinationvancouver.com/vancouver/neighbourhoods/kitsilano
The city should have been providing more incentives to retain the older houses, by allowing upgrades & or additions. Over the decades, Vancouver has lost several houses, simply because of half-assed policies.
Of course if a new owner has paid 2.5, 5 or 10 million dollars for a property, they should be able to build what they want. However, there should have been incentives to save the older houses whenever possible. An infill development can be a guesthouse, or just a separate unit to be rented out for some extra income.
