Why enclosing changes everything
The R-Codes define a patio as "an unenclosed structure covered in a water impermeable material", attached to the house or not. All the patio rules, including the setbacks and the building permit exemptions, are written for that open structure.
Put walls, windows or doors around it and it is no longer a patio. It becomes part of the house (a sunroom, games room or extra living area) or an enclosed outbuilding, and it is assessed that way.
What you'll need
| Approval | Needed when enclosing a patio? |
|---|---|
| Building permit | Yes, in almost every case. Any patio attached to the house already needs one, and new walls, windows and doors are building work. |
| Planning (development) approval | Often. Needed if the enclosed room breaks the R-Codes standards, such as setbacks, open space or the outdoor living area, or the property is heritage-listed. |
| Building code (NCC) compliance | Yes. A room you live in must meet the rules for habitable rooms, such as light, ventilation, ceiling height, energy efficiency and waterproofing where needed. |
The planning rules that usually bite
- Setbacks. An open patio can often sit 1 m from the side fence, or even have its posts on the boundary in some cases. An enclosed room has to meet the setbacks for walls of the house, which can be larger, especially with windows facing the neighbour.
- Outdoor living area. The R-Codes require each house to keep a usable outdoor living area. If your patio is that area, enclosing it can leave you short.
- Open space. Every R-Code sets a minimum share of the lot to stay open. Turning the patio into a room adds to the built area and can push a small lot over the limit.
- Privacy. A raised floor (more than 0.5 m above the ground) with windows looking over a neighbour brings in privacy setbacks or screening.
What about blinds and screens?
Outdoor blinds, café blinds and fly screens are a grey area. Councils don't all treat them the same way, and the answer can depend on whether they are fixed or roll away. Before you buy, ask your council whether your setup still counts as "unenclosed". Fixed walls, glass panels, windows or doors on all sides clearly enclose it.
Already enclosed it?
You're not alone, and it can usually be fixed. A registered building surveyor inspects the work and issues a certificate of building compliance, then your council issues a building approval certificate. If the room breaks a planning rule, retrospective planning approval comes first. We handle both.
How we'd approach it
- Check your lot's R-Code, open space and outdoor living area with the patio enclosed.
- Check the setbacks for the new walls and windows.
- Prepare drawings showing the enclosure, plus engineering for any new loads on the patio frame.
- Lodge planning approval first if needed, then the building permit.