The developers behind the Star Lofts, Iowa's first zero-carbon certified building, are working on another project close by.

The replacement dwelling is substantially larger, and has more in common with its Edwardian neighbours, albeit with a layout more attuned to modern lifestyles and ... complete with sliding privacy ...

With projects like Portland's airport extension and the world's tallest wooden tower, modern timber architecture ... regionally sourced mass timber structure and other low-carbon materials ...