The regulations treat two things as minor building work: converting a door into a window or a window into a door without increasing the width of the opening, and making an opening in a wall that does not affect structural safety. Johannesburg lists both on its exemption list.
You still apply to the council for authorisation before you start. A repair in the normal course of maintenance needs nothing.
A wider opening, or any opening in a load-bearing wall, needs plans and a lintel or beam designed for it. Glazing area also counts under SANS 10400-XA, which limits how much of a room can be window before calculations are needed.
Sources
- SANS 10400-A:2010, Regulations A1 and A2 (minor building work)
- City of Johannesburg CPMS submission checklists (minor works list)
- SANS 10400-XA:2011, energy usage in buildings
Checked October 2026. Councils change their tariffs every July, so confirm fees before you pay.