Apartment List, A San Francisco-based apartment rental marketplace, has raised $50 million in a series C round of funding led by Passport Capital, with participation from Allen & Company LLC, Canaan Partners, Matrix Partners, Industry Ventures, Quantum Partners LP, Tenaya Capital, and WTI.

Founded in 2011, Apartment List offers a cross-platform app that connects would-be renters with those listing rental properties across the U.S. It uses a mix of questions, manual filters, and a visual interface that leans on photos and maps.

Prior to now, Apartment List had raised around $60 million in funding, and with its latest cash injection the company said it plans to grow its property inventory beyond large apartment blocks to “include smaller apartment buildings and single-family homes,” adding that it aims to double its headcount in 2018.

“Apartment List exists to make sure renters have an equal place in today’s housing market,” said Apartment List cofounder and CEO John Kobs. “Renters deserve the same personalized, seamless, white-glove experience that buyers get. We’re innovating our marketplace and scaling our business to help people make better, smarter decisions about where they live, and we won’t stop until we’ve won this market. This investment brings us one step closer to that goal.”

Apartment List said it has grown the number of listings on its marketplace by 50 percent over the past year and currently has nearly 4 million properties on its platform, which it said equates to 10 percent of U.S. rentals.

“We expect to help 1 out of every 64 renters that move this year in…