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Capital Developments NHS Lothian | Our Organisation

Reinforced Autoclaved Aerated Concrete

NHS Assure is carrying out work to check and risk assess all buildings in the NHS Estate across Scotland which may potentially have been constructed using a form of concrete known as RAAC (Reinforced Autoclaved Aerated Concrete). 

This material, which was widely in use between 1960 and 1980, was used mainly for components such as roof and floor planks.  It is known to be weaker than other forms of concrete and its use was phased out in the 1990’s.

These pages will keep you up to date on progress in NHS Lothian.

List of Sites

NHS Assure identified 47 areas across 21 sites in NHS Lothian for further survey, of which 8 were classified as high likelihood of containing RAAC.

It is important to remember that these risk assessments are based on the desktop exercise using the following criteria:

  • Year of building construction.
  • Form of construction (where known).
  • Presence of any concrete looking material.
  • Presence of flat roofs.
  • Presence of low-pitched roofs.

The above assessments do not confirm the presence of RAAC.

The 8 sites within NHS Lothian which were classified as high likelihood of containing RAAC are as follows:

  • Bonnyrigg Health Centre
  • Lauriston Building
  • Princess Alexandra Eye Pavilion
  • Royal Edinburgh Hospital – Cullen/River Centre Extension
  • Royal Edinburgh Hospital – Link Corridor/X-Ray
  • Stoneyburn Health Centre
  • Tranent Medical Practice
  • Western General Hospital – Gas Store

Site NameDesktop Survey Complete (Yes/No)Likelihood of the presence of RAAC (High/Medium/Low)Date of Discovery SurveyDiscovery Survey Complete and No Immediate Action Required ?Discovery Survey Complete and safety measures/monitoring in place (where required)?
Bonnyrigg Health CentreYesHigh9th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Lauriston BuildingYesHigh17th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Princess Alexandra Eye Pavilion (PAEP)YesHigh17th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Cullen/River Centre ExtensionYesHigh18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Link Corridor/X-RayYesHigh18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Stoneyburn Health CentreYesHigh11th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Tranent Medical PracticeYesHigh9th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Gas StoreYesHigh17th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Charles Bell PavilionYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Old IncineratorYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Booster HouseYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – North Generator HouseYesMedium18th October 2023Discovery Survey Complete
RAAC present
Further survey to be arranged to understand the extent of RAAC.

Initial reports suggest area in acceptable condition.
Astley Ainsley Hospital – LaundryYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Building WorkshopsYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Children’s CrecheYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Blackridge Health CentreYesMedium11th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Carmondean Medical GroupYesMedium10th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Craigshill Medical CentreYesMedium10th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Liberton HospitalYesMedium19th October 2023Discovery Survey Complete.
No RAAC present.
Not required.
Linlithgow Health CentreYesMedium10th October 2023Discovery Survey Complete
No RAAC present.
Not required.
North Berwick Health CentreYesMedium9th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Newton Port SurgeryYesMedium9th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Verandah Club & Link CorridorYesMedium18th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – GreenhousesYesMedium18th October 2023Not required.Not required.
St. Michaels HospitalYesMedium10th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Stockbridge Health CentreYesMedium17th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Ward 1YesMedium21st September 2023 (Part 1)

11th December 2023 (Part 2)
Part 1 Discovery Survey Complete.

RAAC Present.
Immediate action taken to ensure the area is safe through remedial works. Complete.
 
A risk-based review is being undertaken to agree a permanent solution.
 
No immediate risk to patients, staff, or visitors.
Western General Hospital – Laundry Loading Bay 2YesMedium17th October 2023Building part of demolition as part of site masterplan.N/A
Western General Hospital – Laundry Bay 1YesMedium17th October 2023Building part of demolition as part of site masterplan.N/A
Western General Hospital – MicrobiologyYesMedium17th October 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Boiler HouseYesMedium17th October 2023Discovery Survey Complete
RAAC present.

Further Discovery Survey is required with specialist access equipment to confirm.
Area noted to be in good condition.

Further visit to be arranged with specialist access equipment to ascertain extent of RAAC.
Western General Hospital – Main LaundryYesMedium17th October 2023Discovery Survey Complete
RAAC present.
This building is in progress of demolition as part of site masterplan.

No additional actions required at this stage.
Whitburn Health CentreYesMedium11th October 2023Discovery Survey Complete
No RAAC present.
Not required.

NHS Lothian have now submitted a further 96 areas within buildings across 38 sites to NHS Assure for review. We await their categorisation in terms of likelihood of RAAC. This work is precautionary and not the result of known issues on these sites nor indicative of any immediate threat. The table contained above will be continually updated as we receive further information.

The desktop survey review is now complete for the further 96 areas mentioned above. In summary the initial results are as follows;

High Likelihood – 58 Areas (the majority of these are contained within the Western General Hospital Campus)

Medium Likelihood – 9 Areas

Low Likelihood – 32 Areas.

Dates have now been arranged to begin the discovery survey process for the above high and medium likelihood areas. Surveys will begin on the Western General Hospital campus on Monday 4th December for a duration of two weeks. Following completion, survey work will move to the Astley Ainsley Hospital followed by the Royal Edinburgh Hospital.

Following completion of the discovery survey process at the Western General Hospital, detail on the output is contained in the table below.

Site NameDesktop Survey Complete (Yes/No)Likelihood of the presence of RAAC (High/Medium/Low)Date of Discovery SurveyDiscovery Survey Complete and No Immediate Action Required ?Discovery Survey Complete and safety measures/monitoring in place (where required)?
Western General Hospital – DCN Theatre Recovery BlockNoN/A – Discovery Survey carried out12th December 2023No RAAC present in Theatre areas.

Further remedial works required for access to flat roof areas.
TBC
Western General Hospital – DCN Theatre BlockNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Diabetic ClinicNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Outpatients DepartmentNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete

RAAC present within the Lecture Theatre however not in critical condition.
Information to follow
Western General Hospital – Catering (Block 4J)NoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Catering Department Block (Block 4K)NoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Neurological Oncology UnitNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Main BuildingNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Link M/BLG LabNoN/A – Discovery Survey attempted12th December 2023Re-inspection required due to access limitations.TBC
Western General Hospital – Ward 5 Plant RoomNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – New DRS ResidencyNoN/A – Discovery Survey attempted12th December 2023Re-inspection required due to access limitations.TBC
Western General Hospital – MRI Scanner UnitNoN/A – Discovery Survey attempted12th December 2023Re-inspection required due to access limitations.
TBC
Western General Hospital – Flammable StoresNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete.

RAAC present within roof area however not in critical condition.
Information to follow
Western General Hospital – Fire Training BlockNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – D3 AnnexNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Clinical SkillsNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Link Corridor (First Floor)NoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – 4C Covered WayNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Ambulance Entrance AreaNoN/A – Visual Survey carried out12th December 2023Visual survey of the area carried out with no RAAC suspected.

Further remedial work required to carry out intrusive survey.
TBC
Western General Hospital – Social Work DepartmentNoN/A – Discovery Survey carried out12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Patient / University of Edinburgh / Staff LibraryYesMedium12th December 2024Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Medical LibraryYesHigh12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Clinical Chemical / HAEYesHigh12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Clinical Chemical Flammable Store AreaYesMedium12th December 2023Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – South Corridor (DCN Ramp)NoN/A – Discovery Survey attempted12th December 2023Re-inspection required due to access limitations.TBC
Western General Hospital – LV & HV Plant RoomYesHighDecember 2023Discovery Survey Complete

RAAC present. Generally in good condition however some minor cracks noted.
Additional works required to further inspect RAAC found however the area is noted as in reasonable condition.

Reinspection to be arranged to further ascertain condition with an annual inspection programme to be implemented.

Updates will follow in due course.
Western General Hospital – GI Labs ExtensionYesHighDecember 2023
Discovery Survey Complete
No RAAC present.
 Not required.
 
Western General Hospital – ChaplaincyYesHighDecember 2023
Discovery Survey Complete
No RAAC present.
 Not required.
Western General Hospital – DCO BuildingYesHighDecember 2023
Discovery Survey Complete
No RAAC present.
 Not required.
Western General Hospital – Edinburgh Cancer Clinic & HEBA CentreYesHighDecember 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Oncology Physics DepartmentYesHighDecember 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Cyclotron BlockYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – NTSU Block (Ward 1)YesHigh11th December 2023
Discovery Survey Complete

RAAC present and noted as in reasonable condition.
Remedial works programme now ongoing.
Further updates to follow.
Western General Hospital – SHSCYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – SHSC Lecture TheatreYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – DCO Ramp CorridorYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – NTSU BridgeNoN/A – Discovery Survey carried out11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Main Oxygen CompoundYesMedium29th November 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Fire Training & PharmacyYesHigh29th November 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Old Metabolic AreaYesLow29th November 2023

Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – CSSDYesLow29th November 2023

Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – D BlockYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Link Corridor (Lower Ground Floor / Ground Floor and First Floor)YesHigh11th December 2023

Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Entrance CanopyYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Link Bridge (MRC/DCO)YesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Breast UnitYesHigh12th December 2023
Discovery Survey Complete
No RAAC present.
Not required.
Western General Hospital – Infectious Diseases BlockYesHigh11th December 2023
Discovery Survey Complete
No RAAC present.
Not required.

The discovery survey process has continued into 2024, at further sites throughout the NHS Lothian Estate. Detail on the output of these surveys is contained in the table below.

Site NameDesktop Survey Complete (Yes/No)Likelihood of the presence of RAAC (High/Medium/Low)Date of Discovery SurveyDiscovery Survey Complete and No Immediate Action Required ?Discovery Survey Complete and safety measures/monitoring in place (where required)?
Royal Edinburgh Hospital – Union Offices YesLow23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Cottage 23 (Tipperlin Road)YesLow23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Kennedy TowerYesHigh23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Lecture TheatreYesLow23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Merchiston / MeadowYesLow23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Henderson UnitYesHigh23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Andrew Duncan ClinicYesLow23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Generator HouseYesHigh23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Plant Room (Ward 8)YesHigh23rd January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Main KitchenYesLow24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – ContainerNoN/A – Discovery Survey carried out24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Joiners WorkshopYesLow24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Dining / Coffee RoomsYesLow24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Sewing RoomYesLow24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Jardine ClinicYesHigh24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Royal Edinburgh Hospital – Garages / Gardeners AreaYesHigh24th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Dedridge Health CentreYesLow29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Winchburgh Health CentreYesLow29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
St. Johns Hospital – Estates DepartmentYesMedium29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
St. Johns Hospital – Main Block (Phase 1 & 2)YesMedium29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
St. Johns Hospital – Flammable Goods Store (West)YesMedium29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
St. Johns Hospital – Multi-Purpose UnitYesMedium29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Boghall ClinicYesMedium29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Bathgate HouseYesLow29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Armadale Community Health CentreYesLow29th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Edington HospitalYesLow6th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Belhaven Hospital – Ward 2 & 3 and Day CentreYesLow6th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Prestonpans Health CentreYesHigh6th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Liberton Hospital – Paramedical BlockYesN/A – Discovery Survey carried out7th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Liberton Hospital – X-Ray Consulting RoomsYesN/A – Discovery Survey carried out7th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Liberton Hospital – Tower Block Wards 1 – 8YesN/A – Discovery Survey carried out7th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Liberton Hospital – Ward 10YesN/A – Discovery Survey carried out7th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Links Medical CentreYesLow13th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Inchkeith House Medical CentreYesLow13th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Long House SurgeryYesHigh13th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Comely Bank Training CentreYesLow13th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Craigroyston Health CentreYesLow13th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Sighthill Health CentreYesLow13th February 2024Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Balfour PavilionYesHigh9th January 2024Discovery Survey Complete
No RAAC present.
Not required.
Astley Ainsley Hospital – Estates Department OfficesYesLow9th January 2024Discovery Survey Complete
No RAAC present.
Not required.

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