- Building type: Country House
- Date of construction: 1740
- Architect: Michael Priestley
- Listing: B1
- HB/SMR Ref: HB01/04/001
- 2nd Survey by EHS: No
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Prehen House, Prehen, Londonderry
County Londonderry
Classical Georgian style 2 storey, 4 bay country house with East and West wings forming courtyard to South. North side has central breakfront with Gibbsian surround to pedimented doorway. Rectangular sash windows with ashlar block surround. Stepped quoins. Cornice and blocked parapet
| Stone Type Category: | Schist |
| Primary Stone Type: | Derry Schist |
| Secondary Stone Type: | Barony Glen Sandstone (Dungiven) |
| Other Stone Type: | |
| Replacement Stone Type: | |
| Stonework Construction: | Un-coursed rubble |
| Stonework Condition: | Schist is in reasonably good condition with fragmentation of isolated blocks only, dressing is also in good condition with mild granular disintegration and occasional flaking only |
| Condition Assessment (QUB): | 1 |
