No.5 and No.6 Dock, Basin No.1, Portsmouth Dockyard - Portsmouth, City of (UA)

Docks 5 and 6 are part of a complex of late C18 and early C19 ship building and repairing docks with associated quay walls and mooring fixtures. The docks have stepped sides with flights of steps and haulage slides; some retain later metal gates. Dock 6 is suffering from rotation, and mortar joints on the stonework treads on the north side have opened up; it is also vulnerable to water penetration action and the stonework is spalling. Dock 5 has recently been flooded due to failure of the gates and is vulnerable to algal growth and saturation of stonework with risk of accelerated decay.

No.5 and No.6 Dock, Basin No.1, Portsmouth Dockyard - Portsmouth, City of (UA)
© Defence Estates

Site Details

  • Designated Site Name: Portsmouth Dockyard, the Docks
  • Heritage Category: Scheduled Monument
  • List Entry Number: 1001852
  • Local Planning Authority: Portsmouth, City of (UA)
  • Site Type: Maritime > Marine construction site


  • Building Name: No.5 and No.6 Dock
  • Street Name: Basin No. 1
  • Locality: Portsmouth Dockyard
  • Unitary Authority: Portsmouth, City of (UA)
  • Parliamentary Constituency: Portsmouth South
  • Region: South East

Assessment Information

  • Assessment Type: Building or structure
  • Condition: Poor
  • Occupancy / Use: Not applicable
  • Priority: C - Slow decay; no solution agreed
  • Previous Priority: C
  • Ownership: Government or agency
  • Designation: Scheduled Monument and Listed Building grade I, part in CA
  • List Entry Number(s): 1001852 and 1272267