Risk Assessment for Demolition at Party Walls — UK

UK construction-safety guidance by the Riskora Editorial Team

Whether you are pricing demolition at party walls, mobilising for it, or already on site, the documentation has to match what is actually happening on the ground. Most serious demolition incidents trace back to a single decision: starting work without a structural pre-demolition survey or without identifying the load paths in the existing building. The legal position for demolition at party walls is well established. The Party Wall etc. A Risk Assessment written specifically for this activity is the only practical way to evidence that the risks have been thought through before work starts.

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Example Risk Assessment

Risk Assessment for Demolition at Party Walls — UK

  • Full scope and description of demolition of structures sharing party walls with adjacent occupied buildings
  • Site-specific hazard identification and risk ratings
  • Risk control: destabilising the adjacent property by removing the shared wall's lateral support
  • Risk control: exposing the adjacent property to weather during and after demolition
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When This Document Is Required

The Party Wall etc. Act 1996 requires notice and agreement before demolition at party walls. A structural engineer must assess the wall's function and specify temporary support requirements.

What Must Be Included

  • Full scope and description of demolition of structures sharing party walls with adjacent occupied buildings
  • Site-specific hazard identification and risk ratings
  • Risk control: destabilising the adjacent property by removing the shared wall's lateral support
  • Risk control: exposing the adjacent property to weather during and after demolition
  • Risk control: damage claims from inadequate dilapidation surveys and protection measures
  • PPE and RPE requirements for all personnel
  • Emergency procedures and response arrangements
  • Competency requirements and training records
  • Communication and briefing procedures
  • Supervision and monitoring arrangements
  • Review schedule and sign-off by competent person

Common Mistakes to Avoid

  • Using a generic template without adapting it to the specific demolition of structures sharing party walls with adjacent occupied buildings conditions
  • Not reviewing the document when site conditions change
  • Missing sign-off from a competent person before work begins
  • Failing to consider destabilising the adjacent property by removing the shared wall's lateral support
  • Not addressing exposing the adjacent property to weather during and after demolition
  • Not briefing all workers on the document content before work starts

Example Scenario

A competent person on the project delivering a contract in Hull has discovered that the existing template they have been using does not actually cover the activities on the new job — they need a fresh Risk Assessment. The supervisor opens Riskora on a phone between site visits, selects the preset, checks the pre-populated content against the actual scope, makes the edits the site demands, and has a finished document by the end of the day. The finished document explicitly addresses destabilising the adjacent property by removing the shared wall's lateral support, which the principal contractor would otherwise expect to see written into the pack.

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Riskora is an assistive document preparation tool. All documents generated must be reviewed, verified, and approved by a competent person before use on site. Riskora does not replace professional safety judgment, and no output should be treated as a legal compliance guarantee.