There's a high density apartment right next to the famous Painted Ladies, and tourists still come: https://d2v9y0dukr6mq2.cloudfront.net/video/thumbnail/NYb7kU.... Most people aren't for bulldozing landmarks and genuine historical areas, but rather building on mundane areas like old laundromats: https://sf.curbed.com/2018/2/14/17012606/laundromat-2918-mis....