Fitting a heat lamp in the bathroom

I'd like to install a heat lamp in my bathroom, which has a false ceiling containing both the wiring to my bathroom and the plumbing to the unit upstairs from me.

Knowing that the light would recess into the cavity between mine and the upstairs unit, I checked with the strata manager regarding appoval.

They advised that a special by-law would be required in order to legally notify any subsequent owner that it was the units responsibility to maintain, not strata's.  To that end, I'd need to incur the expense of a lawyer to draft a by-law.  The strata company would not provide a wording for the by-law themselves, saying all their bylaws are copyrighted by the solicitors.

Given that the usage of the fitting is obviously exclusive to my property, I wonder if a special bylaw isn't a bit excessive?  Is there not an overarching regulation on exclusive usage which would cover this?  As a principle, I don't see any difference whether we're dealing with a heat lamp, an air-con unit, pipe work or wiring.

So the long and the short of it – is the only option a special by-law and if so, is it possible to source a 'template' by-law wording I can tweak and submit, rather than incurring the solicitors expense?