Concrete 3D printer rebuilding home in Altadena following Eaton Fire

Construction of a Pine Street home is drawing attention from neighbors.

ALTADENA, Calif. (KABC) -- Homes continue to go up in Altadena following the devastating Eaton Fire in January last year.

However, the construction of one home on Pine Street is catching the attention of some neighbors and contractors.

William John Raitt is the founder of WJR Interiors.

He is building three homes in the area and had to stop and ask questions.

"I was driving down the street and I saw this contraption," Raitt explained. "This is alien to me and I wanted to see what it's all about."

Emergent Construction is rebuilding a home and ADU on the property using a concrete 3D Printer.

Don Ajamian, owner of Emergent said, "W e are extruding layers that are 2 inches tall, 2 inches wide, and it prints up all the walls a layer at a time over the course of several days."

The home is being built to last and is fire resistant.

Paraic McGarty is the CEO of Willow 3D which owns the concrete 3D printer.

"It's basically going to be a bunker. It's 11 inches of concrete, filled on the inside with rebar and concrete insulation. It's going to be; any disaster, it's not going anywhere," McGarty said.

Also, Ajamian added, "It's certainly appealing to many people after a fire like this. We got many calls from people that said I want to rebuild, but I don't want any wood in my structure and I get that."

Emergent Construction estimates a 3D printed home costs about the same per square foot as a wood frame home.

"We can do these curves and shapes and these organic features that would be enormously expensive to do with conventional construction," Ajamian said.

Emergent is contracted to build six other homes in Altadena.

Folks like Raitt are excited to see the future of construction in action.

"It's really the design elements to me and just the fun factor. It's new. It's sci-fi," Raitt said.

Emergent expects the 3D printing of the home to be done sometime next week.

Ajamian hopes the family can move in when it's all said and done in about six months.