EXCLUSIVE: HBO has given the green light to a comedy pilot executive produced by David Marshall Grant, Sarah Condon and Andrew Haigh. Haigh will direct the untitled pilot based on Michael Lannan’s feature script Lorimer. (Lannan also did a short film by that name, but the HBO pilot stems from his original script). It revolves around three thirty-something friends living in San Francisco who grapple with all the options in contemporary life and the complexities of the modern gay experience. Lannan wrote the script, which was further developed under Grant’s supervision. He will co-exec produce.

It has been a big week for Grant. In addition to the HBO pilot order, he received a WGA nomination as part of the writing staff of ABC’s freshman drama Nashville and shared in the best series Golden Globe nomination for Smash, on which he served as an executive producer last season. In addition to the HBO pilot, Grant has two broadcast projects in development — an adaptation of the Israeli series Ran Quartet at CBS, which he is writing, and Blink at the CW. CAA reps Grant, Lannan and Haigh, who is managed by Anonymous. Grant is managed by Untitled Entertainment.

This is HBO’s second comedy pilot pickup this week, along with People In New Jersey, written and executive produced by Bruce Eric Kaplan, with Jason Reitman set to executive produce and direct and Lorne Michaels on board to executive produce. They join recently picked up Silicon Valley, a single-camera dark comedy pilot from King Of The Hill‘s Mike Judge, John Altschuler and Dave Krinsky; as well as fellow 2012 comedy pilots Hello Ladies, which has already been picked up to series, and Getting On. Christopher Guest’s Family Tree received a straight-to-series order.