Sept. 28–A Los Angeles investor has purchased its fourth hotel atop San Francisco's Nob Hill.

Woodridge Capital bought the 135-room Huntington Hotel at 1075 California St. this month, according to property records.

Woodridge previously bought the nearby Fairmont, Mark Hopkins and Stanford Court hotels. It later sold the Fairmont and Mark Hopkins.

"I've had a love affair with Nob Hill since I was a very young man," said Michael Rosenfeld, CEO of Woodridge Capital. "It's just such a privilege to be involved with these landmark properties that represent a significant chapter of San Francisco's history."

The Chronicle reported that Woodridge was close to a deal last month.

The seller was Grace International of Singapore, which declined to comment. Grace rebranded the 1922 hotel as the Scarlet Huntington and changed the interiors with an Asian-inspired design.

Rosenfeld said the Scarlet portion of the name has been dropped following the sale. Woodridge will invest in "some renovations with an eye toward bringing back the historic charm of the property while simultaneously embracing a current relevance," he said. The new interiors won't be Asian-themed and will instead reflect a modern take on San Francisco history, he said.

Woodridge now owns the Big 4 restaurant in the hotel's lobby as well and is considering some interior improvements.

"We see it as such a community resource right there. Our goal is to really activate it as a social space," Rosenfeld said.

Woodridge is also in the midst of renovating the 393-room Stanford Court.

Outside of the Bay Area, Woodridge is developing the $2.5 billion Century Plaza project with a hotel and condos in Los Angeles.

Rosenfeld said he is being picky about buying more properties, focusing on historic buildings and ground-up development opportunities.

The reopening of Moscone Center early next year will also benefit hotels around San Francisco, he said.

"There has clearly been a void for the meetings and conventions," he said. "We fully expect to see a significant amount of pent-up velocity restored. All arrows are pointed in the right direction."

Though the vast majority of new housing and office construction is occurring south of Market Street, drawing new foot traffic, Rosenfeld said he is bullish on Nob Hill.

"Because of its proximity, centrality to all parts of the city, we firmly believe Nob Hill will always remain as a special core of the city," he said.

Roland Li is a Chronicle staff writer. Email: [email protected] Twitter: @rolandlisf