Do I Need Planning for a Mezzanine Floor

Time:3/19/2025

Do I need planning for a mezzanine floor? Yes, you may need planning permission for a mezzanine floor, depending on several factors:

When Planning Permission is NOT Required

In many cases, mezzanine floors within an existing building do not require planning permission, especially if they are for storage purposes and do not significantly alter the building’s structure or external appearance.

When Planning Permission IS Required

You will likely need planning permission if:

Increase in Floor Area – If the mezzanine increases the building’s overall floor space significantly, local zoning laws might require approval.
Change of Use – If the mezzanine changes the building’s primary function (e.g., from storage to office or retail space), permission may be needed.
Impact on Fire Safety – If the mezzanine affects fire escape routes or fire resistance, authorities may require approval.
Structural Changes – If installing the mezzanine requires significant modifications to the building (e.g., new foundations or external modifications), planning permission may be required.
Retail Environments – In some areas, mezzanine floors in retail settings larger than 200 square meters (2,150 sq. ft.) require approval.

Other Considerations

Building Codes & Regulations – Even if planning permission is not needed, the mezzanine must comply with building regulations related to fire safety, accessibility, load-bearing capacity, and ventilation.
Landlord Approval – If you are leasing the space, your landlord may need to approve the installation.

Conclusion

If your mezzanine is for storage and does not alter the building significantly, you likely do not need planning permission. However, if the mezzanine is large, changes the building’s use, or impacts safety, you should consult your local planning office to ensure compliance.

Would you like help checking the specific requirements in your area?