Acheson Doyle Partners was engaged by the Roman Catholic Diocese of Brooklyn to restore the exterior of the 1912 Co-Cathedral of St. Joseph to its original Spanish Style splendor. The project included new slate roofing, copper gutters and leaders, and installing stand-offs on the south-facing roofs to accommodate future solar panels. The brick and terra-cotta facades were cleaned and repointed, and the stained-glass windows were restored by Botti Studio. Portions of the bell towers, structurally unstable and beyond repair, were replicated in cast fiberglass reinforced plastic (FRP) to match the original terra-cotta. The broad granite entrance steps, cleaned, reset and free of a former fence enclosure, anchor the main facade and create a welcoming street presence.