I live in an apartment in SF that is subterranean. Ive heard this referred to as a "garden unit." It's not so low that there isn't a ton of natural light and I actually like it quite a bit.

Recently I submitted a request that I noticed my humidity in the apartment was frequently 80% and the landlord was kind enough to supply a dehumidifier.

I today noticed a lot of serious mold in my closet which I just reported and assume they will deal with because they have been great on requests thus far. I truly can't tell if it has more to do with rain coming in through the wall or the humidity but I cannot find mold anywhere else and the carpet there is damp and the walls have water damage signs. So I am guessing maybe a combo?

This though makes me realize a bit of a conflict though. My understanding is its the landlords responsibility to maintain a mould free home and that this is a serious element of Tennant rights. However, I have also heard that landlords are not responsible for supplying dehumidifiers.

As near as I can tell. Dehumidifiers at least the good ones are 250 and still break every 2 years require continuous maintenance by you to clean and empty them. They are a pain. I would much rather the landlord have installed an industrial one with drainage set up that is going to last longer and has drainage taken care of than me having to fuss with this.

Frankly, I feel like if the unit is inherently humid it is a part of the landlords habitability responsibilities to keep it dry.

But again, most would say the landlord is not responsible for supplying a dehumidifier at all.
In my mind this conflicts with the landlords responsibility to provide a habitable environment.

Especially in cases where the unit just _is_ naturally more humid/damp like a basement.

So what gives here?