It depends on the circumstances. There are building in our country that became a national treasure. You cannot destroy it and build a new one. You will go through a difficult process if the house is already century old. They will make it as a museum. You better buy a land and there's no old building that can be turned as a museum.Buildings and house designs are dynamic as architects and engineers are always working churning out beautiful designs and building plans to suite ever present needs in houses and building structures.
Should real estate investor consider demolishing very old structure like from the 60s and 70s to construct modern designed structures??