- Building type: Church
- Date of construction: 1916
- Architect: W.J. Barre
- Listing: B
- HB/SMR Ref: HB03/08/002
- 2nd Survey by EHS: No


St. Mary's Star of the Sea Church, 3 The Crescent, Portstewart, BT55 7AB
County Londonderry

Lombardic Romanesque style church with 3 stage tower. Nave has a slightly advanced central bay with rounded arch doorway, rose window and cross finial. Either side are 2 rounded arch windows and an arcade of blind windows above. Tower has a hipped roof, rounded arch doorway, ‘arrow slit’ windows and an open belfry at top
Stone Type Category: | Basalt |
Primary Stone Type: | Basalt |
Secondary Stone Type: | Ballycastle Sandstone |
Other Stone Type: | Newry Granodiorite |
Replacement Stone Type: | Duke's Sandstone |
Stonework Construction: | Un-coursed rock-faced |
Stonework Condition: | Primary stone is in good condition with no significant evidence of deterioration. Sandstone shows some evidence of surface loss primarily through granular disintegration and bedding-plane erosion |
Condition Assessment (QUB): | 1 |