Without more information can't really know for sure but if theres solid brickwork inbetween an no open windows/venting as such it shouldn't really.
Mind you the previous occupants of the other house of the semi-detached we live in would smoke something that the smell of would on ocassion make its way through to the adjacent bedroom even with windows closed - and they weren't exactly trying to advertise what they were smoking.
Mind you the previous occupants of the other house of the semi-detached we live in would smoke something that the smell of would on ocassion make its way through to the adjacent bedroom even with windows closed - and they weren't exactly trying to advertise what they were smoking.