It now seems that mandatory inspections for hidden mould may be introduced. It seems that they are talking about a situation where mould is present but invisible - can that actually happen? How would a landlord deal with a finding that there is invisible mould in the property? This was discussed at the Oireachtas Committee on Public Petitions https://www.oireachtas.ie/en/debates/debate/joint_committee_on_public_petitions_and_the_ombudsmen/2026-06-23/4/ (here)
Some samples of what was said
The next petition, P00078/25, submitted by Ms Jennifer Williams, relates to mandatory mould inspections, air quality certification and fair rent standards in rental housing. We discussed this in private session. It concerns not just the presence of mould that can be seen but also a mandatory inspection regime to find cases where there might be mould and where it may be having a detrimental impact on renters of the property in question, without their even knowing it and, in some cases, without the landlord knowing it. Mould can be present without there necessarily being massive evidence of it.
I support the Cathaoirleach's proposal. We know there are unscrupulous landlords who do no more than give a place a clean and a lick of paint before getting it rented out again. We need to look into that.
We are in agreement on the need to move the issue forward. The mandatory inspection part is important because it would help to find mould even when it cannot be seen. The impact on people's health is the same regardless of whether it can be seen. The issue relates to building standards and quality. It is an issue that is worth our while to pursue. I propose that we forward the correspondence to the Department and await its response. On the basis of that response, we will formulate our own plan. Is that agreed? Agreed.