As a Devonshire road’er. I can say that whilst there is traffic and it does get busy, you only really notice this around peak commuting hours, but then this is Zone 3 in London…
Also if you move towards the middle of Devonshire road, its even less noticeable 
Fellow Devonshire Roaders here putting in a good word! We’ve been here almost four years; one of us drives to work every day, and really don’t find the traffic a big problem. Having easy access to Devonshire Rd Nature Reserve is fantastic. It’s about a three minute walk to the station as well as some fantastic pubs and coffee houses. Plus the views across Kent are amazing, and there are plenty of beautiful houses on the street.
Hi! We’re looking at a house on the edge of Brockley Hill PARK (AMAZING!) and my only concern is that it is on the main section of Brockley Rise. We have an 18month old and the park would be perfect for him to grow up in but the road would be less great. How busy does this road get?
Hi Becci
I live on Brockley Rise very near Whites Paint shop, so a bit further down from where I think you are looking at. The main road is busy, you have double decker buses, and during school dropoff time \ rush hour it is busy, more generally free flowing at other times. Cars can travel at pace down it at times. It’s not as busy as the South Circular, but there is no way of getting around it, it is a busy road. At least the police cars as a general rule now seem to have their sirens off compared to when we first moved here!
What I would say is we don’t notice it anymore (we’ve been here since 2005). We didn’t have doubleglazing when we moved in, and that has made quite a difference.
For us the positives far outweigh the negatives - and being able to head out into the back without packing a whole host of items for the kids, especially when they were younger, being able to pop back for a drink or the all important toilet make a huge difference. The back is truly special and for kids more so.
Good luck with your choice - if you want any more detailed information let me know and am happy to PM you.
Al
Thanks for your really helpful response! We’re still mulling it all over…