Do you have a wife? There is no such thing as timeless. the decorating industry gets together every year and decides what colors they will use.
Look at tile that was installed 10 years ago it's dated now. Same for color of hardwood floors. I.e. light, dark, gloss, satin, wide plank, narrow. Same for carpet, cabinet, paint, everything in the house.
You and I could probably build a timeless house(to us), but if we wanted to sell it forget it. It can be the best quality, but current trends count. I built homes, and the saying was, "most people don't see beyond the wallpaper".