We had a low buzzing noise which we could hear when sitting in our conservatory. We never got to the bottom of what it was. Then it stopped. This house is full of peculiar noises. It creaks like an old sailing ship at times, and i've woken up inthe night sometimes convinced that there is someone walking up the stairs! DH says it's 'settlement noises'! It's been up fourteen years - how much longer does it need to settle?? As of yesterday, every time i go into the dining room i can smell mint, though neither of us has used or eaten anything minty! Christmas paranoia?