Inspect those windows carefully
The windows on the home you have or are considering flipping are a great indicator of whether you have a historical home on your hands or not. Generally, they are easy to spot since they are made from wood, and you should be careful about their condition. It can happen that your wooden windows are historically accurate to the period of your home, but they have been really well preserved, and you do not realize how much value they bring to the home.
Another indicator is if they have storm doors and screens already installed and are in great condition. Not only is this pointing to having a piece of history in your hand, but it will also be a perk when it comes to energy efficiency. The myth around these wooden windows and screens is that they will make your energy bills higher due to them not being insulated enough, but this is wrong information. As long as the window has a snug fit when closed and the metal or copper of the weather stripping is in good condition, you’re good to just recondition and keep them as is.