Craigslist is heading downtown.

After years of operating out of a Victorian house in San Francisco's Inner Sunset District, the popular online classifieds site is relocating its main business operations to the edge of the Financial District.

The company has signed a six-year sublease for more than 14,000 square feet at 222 Sutter St., said Jason Burch, vice president at brokerage firm Cassidy Turley BT Commercial.

"The deal marks the end of a 2 1/2-year search on behalf of Craigslist and comes just as San Francisco achieved its first quarter of positive absorption in 11 quarters," he said.

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Positive absorption means more space was leased in the quarter than vacated, a threshold at which office rents often start to stabilize.

Burch represented the sublessor, Beverly Prior Architects. Robert Kraynak and Reza Musavi of brokerage firm Cushman & Wakefield worked with Craigslist on the deal.

A Craigslist spokeswoman declined to comment. An e-mail inquiry to chief executive Jim Buckmaster and founder Craig Newmark wasn't immediately answered.

The company's website says about 30 people work at the Inner Sunset home. A 14,000-square-foot lease provides room for around 70 employees, based on the standard industry metric.

Burch described the office as a creative space with views of downtown.