 Can an eave be within 450 millimeters of a boundary if it doesn't face that boundary? In other words what I've shown here in red This comes up a lot on the front of the house next to a wall that's built up to a boundary usually in front of the garage But here's another example That back that brick wall is the boundary You can see the fence continuing either side and this building here has eaves front and back now note carefully The eaves are non-combustible. It's a metal roof with metal fascia and five cement eave sheeting The question is can this eave shown in red be within 450 millimeters of a boundary if it doesn't face that boundary? That's on the basis that this is a class 1a building or a class 10a which is within 900 millimeters of the 1a Is this scenario allowed? Well, if you think no that bit of eave isn't allowed It's likely you're thinking of this provision in volume 2 3 7 2 7 allowable encroachments sub clause D Where your eaves aren't allowed to be closer than 450 millimeters from the boundary even if they have non-combustible cladding and mining Note, of course that under 3 7 1 1 five cement sheeting can be used wherever non-combustible material is required Now that's true But when reading a sub clause it's very important to read it in the context of the entire provision Sub clause D here is about encroachments. Now. What's an encroachment? Well an encroachment is any construction between the wall of a building that needs to be protected and the boundary Which makes that protection necessary and for the eaves in question They aren't they aren't fixed on the wall that's facing the boundary so they aren't encroachments for that wall They're encroachments for the front and back walls of that building But the boundaries in question are well over 450 millimeters away and the front one is a road, which doesn't count So the answer is yes This eave can be within 450 millimeters of the boundary because it's not facing that boundary But there is an allowable encroachments non-compliance shown in this photograph Besides the fact that that gutter and probably the fascia are hanging over the boundary Can you see it? Yes, it's the combustible PVC downpipe 3727 D1 requires that combustible downpipes That requires combustible downpipes that are encroachments to be at least 450 millimeters back from the boundary