OMAHA — A long-vacant property near Omaha’s riverfront is to come alive with a nearly $12 million residential condo project that stands out, in part, for the timing as well as a garage-top swimming pool.

The five-story “Riverplace” is believed to be the first new construction condominium structure set to rise downtown in more than a decade.

LONDON (AP) — A 1,300-year-old gold and gemstone necklace found on the site of a new housing development marks the grave of a powerful woman who may have been an early Christian religious leader in Britain, archaeologists said Tuesday.

Almost all buildings today are built using similar conventional technologies and manufacturing and construction processes. These processes use a lot of energy and produce huge carbon emissions.