We have found a house after much searching that ticks all the boxes – except one. It is located in a cul de sac, however it backs the 100km/h M7 motorway (40m from the backyard measured using Google Earth).
Inside the house it is not really noticeable in the daytime when we inspected but acknowledge it is not the best time to tell what it would really be like given the COVID-19 lockdown in NSW. Outside in the backyard it's like a gentle whooshing, except when loud motorbikes/modified cars go past or trucks use their exhaust brakes at the exit ramp approximately 1km away. The bedrooms are also located in the front part of the property which is a plus but I'm not sure if it would ultimately make much difference when trying to sleep (or stay asleep).
Has anyone lived in a similar location before and can share their experience? Am I crazy for considering this house?
Edit: Thank you everyone for your responses. Decided to not place an offer. A little depressing as it was the first place in a while that ticked all the boxes but this was the one caveat that is particularly bad as it can't be changed.