- Building type: Country House
- Date of construction: 1860
- Architect: Not Assigned
- Listing: N/A
- HB/SMR Ref: Not Listed
- 2nd Survey by EHS: No


Altnachree/Ogilby's Castle, Donemana
County Tyrone

Roofless ruin. Gothic style castle, 7 bay, 2 rooms deep with central corridor. Four storey corner turrets. Mullioned windows. East porch with pointed arch doorway
Stone Type Category: | Schist |
Primary Stone Type: | Local Dalradian Schist (Tyrone) |
Secondary Stone Type: | Barony Glen Sandstone |
Other Stone Type: | |
Replacement Stone Type: | |
Stonework Construction: | Regular-coursed rock-faced |
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): | 2 |