I believe "content is king" for ultimate SEO power, but content isn't just text anymore. With Google and other search engines indexing the content of images and video now, your site should have some of all of it. But, forgetting search engines for now, it's all about providing the type of content today's web searchers and real estate buyers and sellers want. They want photos and video of an area, especially if they're moving there from somewhere else. They want to orient themselves, so mapping your images is a plus and makes your site more valuable to them.
I just spent a couple of weeks trying out a number of different software and online solutions for sharing photos, geotagging them, and mapping photo locations for embedding on websites. Take advantage of that research with my list of resources for geotagging photos and mapping on the Web. It fits into my plan of providing today's solutions that are free or cost very little, yet bring results to your marketing efforts.