This house is more 1970's style, very functional looking, everything looks like a block. I don't see that as charming but each to their own.
Garden is nice.
I'd be putting some 1960's wallpaper, big patterns if you want to retain the character of that era. Bright colours but get rid of the fires I think.
I grew up in a house like this in the 1970's. It was painted orange on the outside, red hallway & yellow lounge, green kitchen. Absolute insult to the eyes, but that was the style 😐