I live in a semi small 1650 sq ft house and I have a second floor that's dark Think a cape with two windows at opposite ends. Two bedrooms with a bathroom in the middle and the stairs on the back side so not really a traditional cape.
When I was single I was stationed in Netherlands and Siciliy and both my apartments were roof top style of houses. I had two walk out skylights.
https://skyspec.com/velux-cabrio-balcony-installation/
Thinking about adding one to my place. Would cost me about 10K finished What type of return do you think it would add if I was to sell in 5 years. I'm thinking about buying a second place and making this a rental again but might sell.