Work has begun on a new In-N-Out Burger drive-thru near the 210 Freeway in Monrovia.

The 1.3-acre lot is at 560 W. Huntington Drive in the Huntington Oaks Center. It was the site of a demolished Black Angus restaurant.

Plans approved by the city’s planning commission in October 2022 call for a 3,879-square foot building with indoor seating for 84 customers and a patio that can seat 40 more.

The plan includes a two-lane drive-thru merging into one lane that can handle 26 vehicles. Planners determined the capacity would be adequate after studying traffic at seven In-N-Out locations from Long Beach to Indio.

In-N-Out usually does not announce new locations until the day before they open, but added the Monrovia address to the “Opening Soon” page of its website. The Irvine-based chain usually does that when a project is at or near the construction phase. Projects can be in the works months or years before that happens.

Construction usually takes eight or 10 months.

The chain also added a Modesto restaurant to the page this week.

In-N-Out has two other Southern California locations on the “Opening Soon” page, in Anaheim and Sylmar.

The nearest existing In-N-Out restaurant near Monrovia is at 420 N. Santa Anita, Arcadia, according to the chain’s website.

Information: in-n-out.com