Sandy Hook school opens 4yrs after tragedy

Sandy Hook school, where a gunman killed 20 first-graders and six educators, has been rebuilt and will reopen four years after the tragedy.

A sign posted on an electricity pole outside a house near Sandy Hook Elementary School.

The public will get its first glimpse of the Connecticut school built to replace the one where 20 first-graders and six educators were massacred.

The old Sandy Hook Elementary School was torn down after the gunman's rampage in December 2012.

The new $US50 million ($A66.62 million), 8,000-square-metre school was built on the same property but not in the old footprint, and is scheduled to open next month.

A media tour will precede a public open house on Friday.

Superintendent Joseph Erardi says the district hopes that allowing everyone a look at the school this week will give students a "quiet, respectful, and appropriate opening as teachers and students return to the new school year" on August 29.