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Upstairs neighbour super noisy every night, what are my legal options?
Record with timestamps, or you have basically no case. Without evidence, every authority you approach will just default to 'please talk to your neighbour', because to them it's your unverified complaint against the neighbour's denial. My log of three straight weeks of documented midnight bangs, with dates, times and short audio clips, is the ONLY reason the town council finally took me seriously and acted instead of fobbing me off. Use your phone, note the time, keep clips short but clear. It's tedious to build but it flips the whole dynamic, suddenly you're the reasonable one with proof and they're the one with a pattern to explain. Start the log tonight.
11First-hand experience