It’s a bit of a nature walk to this hidden-from-view home’s front entry. But then, isn’t that the point of living in a property arranged like a treehouse? The woodsy spread in Piney Point Village’s Shady Point neighborhood is a 1972 design by an early advocate of “energy aware” homes, Roger Rasbach. (He also designed this home in Bellaire.) It’s built on a gated cul-de-sac located near one of the designer’s other projects, Vargo’s Restaurant (soon to be replaced by apartments) on Fondren. Listed last week — on the same day demo work began on Vargo’s — the home has an asking price of $1,995,000. That includes several levels of outdoor decks and a nifty open-air workout space in a treehouse of its own (above).