Indeed, the problem is that Ireland makes it damn near impossible to build anything anywhere, still imposes parking minimums, still uses _their own_ failure to build infrastructure as a reason to deny people homes, still has many, many planners who almost seem personally insulted by the idea that you might want a house with "eaves" or literally anything different from what already exists (ironically they're hellbent on making sure nothing is as interesting as e.g. Eyeries village), and still despises anything that isn't sitting on a giant carbon-intensive blob of concrete.
The _excellent_ IrishVernacular.com had a great website showing how to build a modern, comfortable house for 25k (make it 50k now with inflation), but when I talked to planners in Offaly (yech) about the idea of a pier foundation or a metal roof they got visibly angry. (The site is gone but archived at https://web.archive.org/web/20210216212333/https://www.irish... ) Interestingly, metal roofs are cheaper and last longer (and can look perfectly nice, I'm not talking about tin roofs here). But planners are threatened by anything that makes housing more affordable.
As far as the "landscape" - the whole country is a giant meat factory swimming in cattle feces; the landscape was ruined centuries ago. If you're curious, the book "Whittled Away" is a really good examination of this, and how ecologically barren Ireland really is - https://iwt.ie/product/whittled-away/. And rural homes don't need to be car-dependent monstrosities, I made a video about how we could improve active transport in rural areas at https://www.youtube.com/watch?v=6Ba7xHUdeew (of course, even the greens think bikes are only toys outside the city, and my cllrs from FF/FG/SF practically laughed at me when I suggested bike infrastructure where we lived in the midlands).
Of course, the real galling bit is that Ireland has peak "rules for thee and not for me" energy, by saying you can opt out of all that so long as you're a true native son and have parents from the area (the EU has rightly pointed out that this is discriminatory, but Ireland just... breaks the law. And nothing happens) - https://www.independent.ie/irish-news/locals-only-planning-r... . So apparently one-off houses are great, but only for culchies.