EWS1 - External Wall Systems requirement

Stage 0 – RAG Assessment (Desk-Top)

We have completed the Stage 0 assessment, often referred to as a ‘RAG’ assessment (red/amber/green). We can confirm from our initial findings that a ‘waking watch’ cover has not been recommended for any of our properties, which is implemented when there is a high risk of failure should a fire occur.


The results are available via the below link, which is password protected. If you have any specific queries about what each part of the assessment means, please review our RAG Ratings explained.

Stage 0 RAG Assessment Results

RAG Ratings Explained


Stage 1 – Asset Survey

An asset survey is the next stage following Stage 0 assessments. This includes:

  • Examining all property information
  • Undertaking a visual inspection and full drone survey
  • Identify areas for potential inspection to satisfy the EWS1 assessor (Fire Engineer).
  • Prepare a report together with recommendations to undertake necessary invasive surveys to secure the EWS1 form.


We explained in our last update that we would base our programme on priority based on risk. We have begun the first tranche of Stage 1 surveys for all buildings over 18 metres following the RAG assessment recommendations. All residents with properties in these blocks have been advised of the timelines for completion.


We are now planning to undertake Stage 1 surveys for properties under 18 metres, which is the majority of our stock. This will begin in late September and will take approximately eight weeks to complete. If your block is under 18 metres and requires a Stage 1 survey, you will be contacted individually to advise you of the date. If you’re unsure whether a Stage 1 survey is needed, please review the RAG assessment and FAQ.


We’re aiming to review all Stage 1 reports by the end of December 2021. We will then provide an update to you and make it accessible. This timeline is based on the number of blocks that require Stage 1 asset surveys and our ability to turn these around whilst prioritising building safety.


Stage 2 – Invasive Survey

The invasive survey will be undertaken on a priority basis, subject to the findings at Stage 1. This could include:

  • Invasive opening up and recording satisfactory areas
  • Fire Engineer to sign off EWS1 form
  • Stage 2 report issued with recommendations, cost estimates, requirements, and cost estimates for urgent remedial/temporary/safety work


Stage 3 – Remedial Works

Remedial works will be undertaken on a priority basis, subject to the findings at Stage 2. This could include:

  • Carrying out remedial works as recommended
  • Sign off from Fire Engineer
  • Reissue updated EWS1 from

We will be contacting leaseholders as necessary to advise on any cost implications of any of the above stages of work.