Maintain and Verify Floor Plan Diagrams Regularly
Regularly update and check floor plans to ensure accuracy and functionality.
Plain language
Regularly updating and verifying your business's floor plan diagrams ensures that any changes are accurately reflected, like moving walls or rerouting cables. This is important because incorrect floor plans can lead to confusion, hinder emergency responses, or disrupt daily operations.
Framework
ASD Information Security Manual (ISM)
Control effect
Proactive
Classifications
NC, OS, P, S, TS
ISM last updated
Nov 2022
Control Stack last updated
19 Mar 2026
E8 maturity levels
N/A
Section
Cabling infrastructureTopic
Floor Plan DiagramsOfficial control statement
Floor plan diagrams are developed, implemented, maintained and verified on a regular basis.
Why it matters
Incorrect floor plans can mislead emergency responders, delay evacuations and disrupt operations, increasing risk during critical incidents.
Operational notes
Verify floor plan diagrams after any fit-out or access change, and re-verify on a set schedule so responders and staff can rely on them during incidents.
Implementation tips
- Office Manager: Ensure floor plans are updated when any physical changes are made. Work with maintenance staff to keep track of renovations or reconfigurations, then update the floor plan diagrams accordingly.
- IT Team: Verify the accuracy of the current floor plan diagrams against the physical layout every six months. Walk through the premises to cross-check diagrams with actual cable placements and network points.
- Building Maintenance: When completing any building work, provide immediate updates to the office manager about structural or layout changes. This allows for quick updates to floor plan diagrams.
- Safety Manager: Conduct regular training sessions with staff using the most current floor plan diagrams. Use these sessions to discuss emergency exits and cable infrastructure paths.
- Senior Management: Schedule an annual review of your organisation's floor plans to ensure they align with strategic goals, such as planned expansions or reorganizations. Engage with all relevant parties to ensure all views are considered.
Audit / evidence tips
-
Askthe latest floor plan diagrams: Request a copy of the organisation's current floor plan diagrams
Goodthe diagrams match every room and cable location exactly
-
Goodthere is a detailed record with the date and what changes were implemented
-
Askthe schedule of plan reviews: Request the schedule or calendar entries for reviewing the floor plans
Gooda visible, consistent schedule that is followed without fail
-
Goodstaff are trained yearly or after substantial changes, with attendee feedback
-
Askto see the reaction plans for changes: Find a documented procedure for how changes in infrastructure or building layout are handled
Goodclear steps that include prompt plan updates and verification
Cross-framework mappings
How ISM-1645 relates to controls across ISO/IEC 27001, Essential Eight, and ASD ISM.
ISO 27001
| Control | Notes | Details |
|---|---|---|
| layers Partially meets (2) expand_less | ||
| Annex A 7.3 | ISM-1645 requires organisations to develop, maintain, and regularly verify floor plan diagrams to ensure they remain accurate and usable | |
| Annex A 7.5 | ISM-1645 requires organisations to develop, maintain, and regularly verify floor plan diagrams to ensure the diagrams accurately represen... | |
These mappings show relationships between controls across frameworks. They do not imply full equivalence or certification.