Doesn't look that bad to me, like I said probably some historical building seems quite old. If your into renewable energy doesn't make sense to have a big resource hogging office, instead rehab an old structure.
I often go into multi-million dollar architectural firm offices and they are usually located in some old rehabbed 1800's warehouse or other structure downtown, it's very common.
I'm sure if we saw the interior pictures we'd be more impressed.