Off screen, the actor lives in an ultra-luxurious Spanish colonial in the laid-back Loz Feliz neighbourhood of Los Angeles.

The house has been meticulously restored and redesigned by renowned LA interior design firm Nickey Kehoe.

And after living in the luxurious space for nearly four years, Helberg and actress wife Jocelyn Towne have listed the property for sale for $8,997,000.

Helberg bought the three-parcel property, once owned by actor Vince Vaughn, in 2019 for $6,871,190,000.

The site was originally developed in 1930 and includes a tasteful main residence and guesthouse, both imbued with Hollywood glamour. The property has six bedrooms and 5.5 bathrooms.

"It is rare to find such a private, largely flat three-quarter acre lot in the coveted Los Feliz Oaks area, let alone a pristinely restored 1920s Spanish with a pool and guesthouse," said listing agent Elisa Rita, who, along with fellow Compass agents Anthony Stellini and Sherri Rogers, who represented the property." You will find that no expense has been spared here."

The home's wide oak and tiled floors, French doors, balconies, well-manicured floors, unique light fixtures, hardware imported from England and wooden built-ins are among its most charming features.

The kitchen has an island, a breakfast nook, marble and butcher block countertops, and custom cabinetry. Top of the range appliances include a beautiful black La Cornue hob and a wine fridge.

There is also an outdoor kitchen with a barbecue, fireplace and a covered dining area overlooking the saltwater pool.

According to Rita, the property has "the indoor-outdoor flow that every buyer desires".

The grounds extend beyond flat lawns and lush gardens to a terraced hillside with an orchard of fruit trees, wildflowers and seating areas. This remarkable space has even been designated as a certified monarch butterfly way station.

Monarch butterflies migrate to Southern California between mid-October and February each year to spend the season in the bush. Those who know the glory of the monarch butterfly migration understand that a way station is a priceless asset.

The property exudes a gracious, old-fashioned charm. However, modern features such as a reverse osmosis water filtration system, tankless water heater, hard-wired internet, a seven-camera security system and invisible speakers have been added.

Helberg, 42, was born in the entertainment industry - his father was an actor and his mother a casting director.

In the early 21st century, he performed with comedian Derek Waters in the sketch comedy duo Derek and Simon.

Helberg played small film roles in Van Wilder, Old School and Good Night, Good Luck before landing a major role in The Big Bang Theory.

Helberg's film career has also flourished. He received critical acclaim for his performance with Meryl Streep in Florence Foster Jenkins and played opposite Adam Driver in the musical Annette.