Do new houses have to have a sewage vent pipe?
Our house is 2 years old and have discovered that the waste pipe coming from our toilet doesn’t have a vent pipe. This means smells build up in the bathroom and the pipe is more prone to blockage (so I’m told). Should the house have passed its building regulations inspection without a vent pipe?

my dad who is a plumber says no it shouldnt have passed all should have one
yes to vent pipe no to inspection but he could have missed that one
The toilet itself should keep any sewer gas from coming in the house. If there is a smell, you need to replace the wax ring. If your main pipe under the house has a big vent pipe, I wouldn’t worry.
it needs to be vented.. and no it should not of passed.. Call back who did the inspection and then they will be responsible for fixing it…
check to see if there is a auto vent….opens when flushed and closes and resets…..look under a cabinet if in the same room….if t then yes it needs to be vented….
lic. gen. contractor
yes, it wont flush if there isnt.
You must have a sewer vent for both health and operational considerations.
I have never heard of any home that a stack pipe is not required by code, but to play it safe, call your city’s building department and ask them, They will be glad to answer an easy question like that over the phone. If it is required, call the builder immediately. I hope this helps.
There are a few different codes in use in the U.S. all of which require proper venting of the building drainage system. The code I am familiar with the national standard permits the fixture to be installed up to nine horizontal feet from the vent or re-vent. If you have no pipes exiting your roof there is a problem, but don’t think the bathroom unvented because there is no vent penetrating above it. The problem you are having could very well be a simple one, call your local plumber before jumping to conclusions. I find it hard to believe the sub code official would miss the absence of a vent. Vent location and sizing are a big part of the rough inspection, and if there is one missing this would make the inspector and the township responsible for the repairs.