For women sick of men approaching them at bars, there is a new venue where cocktails with girlfriends can be enjoyed in peace.

Entry to the bar comes only with adherence to the formal dress code and house rules - the most important of which dictates that men cannot approach women.

And, if by chance a man is lucky enough to be approached by a woman at Maple Bar, he must 'speak to her as if he would his mother'.

A new bar has house rules that dictate gentlemen cannot approach ladies

'We have a set of house rules, and the one that people have found most interesting is that gentlemen don't approach ladies,' owner Mike Kadinski told Daily Mail Australia.

'And the rule is, if a gentleman is lucky enough to be approached by a lady, he speaks to her as if he would speak to his mother,' he added.

The recently revamped Maple Bar, which is located on the second level of Treehouse Bar in Canberra, opened its doors for the first time on Saturday night.

Mr Kadinski said the rules were inspired by a visit to Neil Perry's Rockpool while in Sydney with his fiancée, where they have similar regulations in place.

'If a gentleman is lucky enough to be approached by a lady, he speaks to her as if he would speak to his mother,' bar owner Mike Kadinski told Daily Mail Australia

The recently revamped Maple Bar, located on the second level of Treehouse Bar in Canberra, opened its doors for the first time on Saturday night

'It's not a way to discourage men to approach ladies,' Mr Kadinski explained.

'If there was an honest gentleman who approached a woman and asked to buy her a drink and she looked comfortable, none of the bar staff would have a problem with that,' he added.

The dress code means men must wear a formal shirt, pants and jacket, and smart shoes, while women are expected to arrive in an 'elegant' dress.

'So many ladies go out there and put so much time a and effort in to getting dressed up, and then you get a guy who thinks its okay to put a t-shirt on with a pair of thongs,' Mr Kadinski said.