Sometimes in property photography a view to the outside is required. I say sometimes as a view may not always be needed. If its a view to a garden, then yes. If it a view onto a busy street then maybe not. Window pulls are very often in my work flow as a Property Photographer, so below is essential to getting high quality imagery.
This is what the process is and its a very quick & effective way to get clear view of the outside.
Take an ambient or flash shot making sure everything is exposed correctly
Then increase your shutter speed to show the outside. Be careful not to go too dark as you what the photo bright enough to look natural.
Directly point the flash at the window frames, slightly over exposing the area around the windows. You may need two or three shots for this as the flash can appear in the shot. I this case, I flashed to the right in two frames so I can photoshop the reflection out.
Now that you have your ambient/Flash shot & your windows exposed correctly bring the images into photoshop.
Put your window pull layers on to of the exposed photo. In this case I photoshopped the flash reflection using the second flash image.
Add a black layer mask
Using the darken blend mode and paint with white to revel the clear windows
Flatten and save.