We thought it was the neighbours polishing their furniture but the new neighbours are not doing anything like that.
It seems to be strongest along the wall between our two houses, up the stairs and towards the back near and in the bathroom. The neighbours can’t smell it.
Kind of like furniture polish, gloss paint or brass polish.
It’s not always there - it seems to happen during the day every so often.
Absolutely love brasso. Used to have my own section on the jobs rota at the cafe that was “polish the brass scales” - woe betide anyone else who did it.
Did you know you can also use ketchup? Don’t recommend it though, very messy, but in a pinch - we’ve all found ourselves in dull brass emergencies before ofc.
I think we get this too! Usually by where the washing machine lives, comes and goes seemingly without a pattern. I’ve not been able to place the smell but now you’ve said brasso that’s what it reminds me of.
Brasso is ammonia based, so I wonder if the neighbours are using ammonia products in the bathroom and you have a shared drain somewhere that’s spreading it around?