- Building type: Castle
- Date of construction: 1604
- Architect: Not Assigned
- Listing: MON
- HB/SMR Ref: ANT040:040
- 2nd Survey by EHS: No


Olderfleet Castle, Larne
County Antrim

Open ruin consisting of 2 walls to a height of 3 storeys, basalt rubble construction. Conservation work carried out in past including cement repairs and stone replacement
Stone Type Category: | Basalt |
Primary Stone Type: | Basalt |
Secondary Stone Type: | Scrabo Sandstone |
Other Stone Type: | Antrim Chalk |
Replacement Stone Type: | Locharbriggs Sandstone |
Stonework Construction: | Un-coursed rubble |
Stonework Condition: | Basalt stonework is in good condition with evidence of repointing and mortar replacement. |
Condition Assessment (QUB): | 1 |