Update, having kept a close eye on this thread, I sent a further email to the venue that included some of the points articulated in this thread. The response from the venue is pasted below. Hopefully I've removed all identifying details - it's worth persevering to the end.
Dear MakeTeaNotWar
Thank you for your thorough and very thought-provoking email.
It has been raised today as a point of discussion at our weekly operations meeting.I hope this response sufficiently addresses your points and concerns, if however, it doesn’t please do come back to me.
XX Venue has been a venue for many years. As the current operators and license holders, we have attempted to ensure that the venue is as inclusive and welcoming as possible. We extend this welcome to all without prejudice.
We understand ‘inclusivity’ is a dynamic field and we have tried to keep up to date with all access developments, whether it’s in the realm of building developments to support our customers with physical access needs or to seek out, challenge and negate other barriers which would include race, sexuality, socio-economic background or gender.
Ultimately, we want everyone that attends Venue to feel safe and welcome at all times; including when they need to go to the toilet.
The incident that you have highlighted from Friday 4thNovember is one that we as a venue were unaware of. You say that a man was ‘intoxicated’ and that you “observed women demonstrate discomfort” and that this mans’ behaviour concerned you. All events that take place at Venue are discussed in advance in terms of the audience profile. the nature of the event along with audience numbers. Security and Stewarding staff are then scheduled on accordingly.
We want to encourage anyone experiencing any discomfort to engage with our professionally trained staff so they can support them. To this end, we are going to be putting clear signage up in the toilet area that trained staff are always available for anyone that needs support.
As a venue we do not tolerate intimidating or bullying behaviour from anyone.
You questioned whether we asked our customer base is they support mixed sex toilets. I can assure you that our decision to establish mixed sex facilities came as a direct result of consultation with our audiences, and specifically in response to comments of how some members of our audiences felt that the previous facilities did not meet their needs. It was an attempt to make our venue more, not less accessible.
As you will appreciate – this is an area of venue operations that has come under scrutiny relatively quickly in context of a wider debate in society. We are aware of current legislation that supports same sex facilities and others that prohibit it.
As a very small and unfunded venue we are not in a position to always keep abreast of every development. Consequently we thank you for bringing the Building Regulations to our attention as we were not aware of our breach. We hope in the future to find the funds to create the self-contained cubicles as you describe and make our facilities completely inclusive.
In the meantime, we will revert the toilets back to single sex facilities with our accessible toilet and baby-change space (with toilet) remaining gender inclusive.
Best Wishes