So confused about the "rules"

Reati

Hey everyone,

I'm a bit of a hobby photographer. I love taking pictures, as we all do I'm sure, and have quite a large collection now. Lately, I've been thinking I'd love to try see if I sell a few just to make some extra cash (read: not become a primary income) to part fund a new lens or do a new photography course or something of the like. I don't expect I'll be getting rich or making that much but I'd like to try.

So I've been exploring my photos and trying to find the best of the best I have to print up and see if there is an audience interested in buying. As a lot of my interest is landscape, animals and buildings so I have a large collection of things that include sunsets or sunrises, castles, famous buildings and lighthouses etc. I mentioned the idea to another photographer I know and it was said to me if I was to try selling a landscape image that featured for example a castle I'd need to have a permit from the OPW or if I i took a nice pictures of St James Gate at the Guinness factory I'd need their permission to sell the image so forth and so on even if I took them from public roads/lands etc.

I'm pretty confused as I thought once you were on public land/roads you could mostly photograph anything (privacy things a side) but seems that taking the image vs selling the image are treated as different things. I would love to hear from anyone who takes and sells prints that knows what the deal is here.

Thanks for the time!