Most people here in the UK live in old housing stock. I live in a flat in a Victorian building. They weren't too concerned with energy efficiency when they built my street. At least new buildings have to conform to new regulations that make them more energy efficient, but anyone who's ever tried to build a real eco house knows how hard it is to get it past planning authorities here because we're weighed down with regulations about what houses should look like.
Whole segments of Jantzen's Wind Pavilion supposedly rotate slowly in the wind, generating electricity. Actually, I feel a little seasick just looking at it. But my point is, something's going to have to give, in our straight-laced concepts of what buildings should be. They've been talking about building a Frank Gehry skyscraper on the seafront not far from where I live. It's one of those ones that look like a crumpled baked bean can on acid. Maybe there are legitimate concerns about it, but from the way local conservationists have been talking, you'd have thought Gehry was out to kill their grannies and bury them in the foundations. A lot of people hate it simply because it doesn't look like what a building ought to look like.