Crown House is Keys' longest-established residential family assessment centre, supporting up to seven families and their babies at a time. It has a long-held reputation for providing excellent support for families.

More recently, Crown House has deepened its specialism in working with parents who have learning disabilities, using the validated Parent Assess model over a 14-week assessment. Each family has their own bedroom with either an en-suite or private bathroom, alongside homely shared spaces including a kitchen, lounges, a playroom and nursery, a dining room and a laundry room.