I lived there for a few months. The structures are extremely sturdy, with some fantastic views from the upper levels. The base of the Gasometers have been cleverly fashioned into a shopping complex, with adjacent cinema and gym. No need to ever venture outside! (Even the underground train station can be reached under cover.)
My apartment overlooked one of the hollow central 'cylinders': not much sunlight reached the interior, and - without net curtains - not much privacy (since neighbors opposite had a clear view across the space).
After seeing a huge crowd queuing in the lobby one evening, I realized the basement was used for rock concerts! And yet, not a sound (or vibration) reached the residential areas above.
The gasometers in Bath were in the middle of a pretty substantial industrial complex, and the land is substantially contaminated - but apparently a few feet of turf is "good enough".