Zillow has opened its first Bay Area office to house services for its growing Internet real estate footprint.

The office, on Bush Street in San Francisco's financial district, will be home for the 19 or so employees of HotPads, a map-based rental and real estate search site Zillow bought last year for $16 million. The new digs will also house some corporate services, engineering and sales teams, and operations for Zillow Rentals, a mobile and online property management tool for marketing and leasing apartments.

The San Francisco grand opening is set for Feb. 27. Seattle-based Zillow also has offices in Irvine, Chicago, New York and Lincoln, Neb.

Contact Heather Somerville at 925-977-8418. Follow her at Twitter.com/heathersomervil.