APARTMENT hunters always have a wish list of things that will help them call a new place home  doormen, laundry rooms, southern exposures.

But for some people, faith guides real estate choices. Instead of bay windows and an in-house gym, their must-have may be a kosher kitchen, a short walk to church, room to roll out a prayer mat or like-minded roommates.

Community mattered to Jason Storbakken, 33, and his wife, Vonetta, 36, who wanted to share their lives with other followers of Christ, and not just for an hour on Sunday morning. So the couple started Radical Living, a Christian collective, in 2007 in a Brooklyn brownstone they bought in 2001 for $180,000, first rehabbing it to the tune of $80,000. To find members, they began “targeted marketing,” Mr. Storbakken said, advertising for roommates on Christian Web sites.

Today Radical Living is home to 20 adults, with several satellite apartments within a block of the brownstone. The word radical, the group’s Web site explains, means “relating to the root or origin,” and refers to the members’ aim “to return to primitive Christianity and to share their lives with others in a spirit of love and service.” Thus, Mr. Storbakken, faith “plays out in every area of your life, from the food you eat to your housing.”