Your downpipes appear to be 100mm x 50mm rectangular and your gutters appear to be slotted quad that will have a cross sectional area of about 5,200 sq mm. Just…

I can't see how one would be of use for your situation but I have no experience with them.
Was it raining when you checked the trench?
My money is still…

It is a good thought and you will never know if you don't have a go.
Can you pour a good amount of dyed water down his downpipe? Just make sure…

Google Angle Of Repose.

I am not in NSW but my understanding is that Fair Trading cannot enforce any orders. You need to check this, no doubt others who know will advise.
A long time…

Just report the post (click on the 3 dots at bottom right) and ask for it to be transferred. Homeone is sure to get the message that way.

It sounds like the channel will collect surface water. If so, water must first divert to a silt pit before connecting to the stormwater.

Ok, thanks.

I agree in principle but I am not in your State and not au fait with the regulatory requirements, perhaps there are some forum members who can provide information on…

Shouldn't having the site fenced also be in the contract?

There is probably an ag pipe in your future and fortunately your deep stormwater pipe will make the silt pit easy to plumb. A plumber is required to do the…

I doubt that much rain would actually fall on the soil and the area of the abutting wall would be the larger catchment area during wind driven rain. Unfortunately, spillage…

The ORG's purpose is to provide a point where sewage surcharge can discharge to an outside area to protect the interior of the house. The ORG must be a minimum…

The photo shows drainage grates in the path but they will only collect the water running off the abutting wall if the path is spooned and not flat but it…

Newbie2017, it sounds like you need the services of a very good building consultant to do your stage inspections.
With the increasing proliferation of Performance Based Solutions (formerly Alternative Solutions),…

Your neighbour's catchment area between the house and the fence is between two rain shadows and is highly unlikely to be the cause.
Further up is a garage on the…

Overflow Relief Gully.

I seriously hope that isn't an ORG in the photo.

It looks like the cut is very recent. What is their setback to the boundary?

I'm glad that they got back to you.
Sorry that I couldn't be more definitive re the legal status of AS3727 but I am reasonably confident that it hasn't been legislated.…

AS/NZS 2032 states that PVC pressure pipes installed in direct sunlight must be either painted with light coloured water-based paints or otherwise protected.
Many Australian Standards are not legislated or referenced…

State wide, June was Victoria's driest June on record and we are also heading into El Nino.

Some builders still flaunt all of the rules and treat their clients with disrespect. Simply unbelievable what goes on.

I agree with StructralBIMGuy, you shouldn't have hired a surveyor recommended by the builder. The reason why the legislation was changed to allow the buyer to appoint their own surveyor…

A 90mm pipe's flow with a 1:100 slope is given by AS 2200 as 360 lpm. Even with a bit more charge, the 90mm stormwater pipe would struggle with your…

Having the roof drainage plumbed to a detention system wouldn't be a problem with the "very slight slope" as described but the surface drainage is another matter. Most often the…

Why don't they do a much cheaper detention system?

For some reason, the forum says that licensed trades is forbidden text when posted as one word. Just join as one word if you do a search.

The BCC describes it as the Specified Paving Standard and it does indicate 125mm for both the driveway and the crossing.
You need to verify with the BCC the document's…

I hope that you post a photo whenever it flowers.