- Building type: Castle
- Date of construction: Medieval
- Architect: Not Assigned
- Listing: MON
- HB/SMR Ref: DOW044:006
- 2nd Survey by EHS: No
Dundrum Castle
County Down
Extensive castle ruin consisting of an outer and inner ward. Four storey round keep, gatehouse and outbuildings. Inner ward curtain wall still to good height

| Stone Type Category: | Greywacke |
| Primary Stone Type: | Greywacke |
| Secondary Stone Type: | Mourne Granite |
| Other Stone Type: | |
| Replacement Stone Type: | |
| Stonework Construction: | Un-coursed rubble |
| Stonework Condition: | Stonework in good condition with occasional fault-line fractures and mild fragmentation |
| Condition Assessment (QUB): | 1 |



