- Building type: Church Ruin
- Date of construction: Medieval
- Architect: Not Assigned
- Listing: MON
- HB/SMR Ref: LDY003:013
- 2nd Survey by EHS: No


Ballywillin Church Ruin, Portstewart
County Londonderry

Long rectangular church ruin with pointed arch doorway on North face and 2 shouldered rounded arch windows. One large rounded arch window in East face, remains of 2 small pointed arch openings above. Blocked up lancet window on West face. South face has one blocked up window and another window with widened opening
Stone Type Category: | Basalt |
Primary Stone Type: | Basalt |
Secondary Stone Type: | Ballycastle Sandstone |
Other Stone Type: | |
Replacement Stone Type: | |
Stonework Construction: | Rough-coursed rubble |
Stonework Condition: | Evidence of past deterioration but stonework is now stable |
Condition Assessment (QUB): | 1 |