Gaol Tower

•   Bishop Street, Derry City

Stone Information

• Stone Type Category :

  Schist
• Primary Stone:

  Barony Glen Sandstone (Dungiven)
• Secondary Stone:

  Barony Glen Sandstone (Dungiven)
• Replacement Stone:

  Giffnock Sandstone
• Other Stone Type:

  Claudy Schist
• Stonework Construction:

  Coursed squared
• Condition Assessment (QUB):

  Stage 1 – A façade in this condition will only require localised remedial treatment concentrating on individual blocks. Stage 1 classification may also indicate that no intervention is needed with only periodic re-assessment of the façade is recommended.
• OS Irish Grid (Easting):

  243254
• OS Irish Grid (Northing):

  416380