looking for a party venue

I'm looking for a venue for a gathering - a Saturday evening. Was thinking a room above a pub was most likely - have used the Horse nr Waterloo before and the upstairs at the Rosebuck. Anyone got any other ideas? Preferably easy access to at least buses or preferably tube. Thanks for any suggestions....

Upstairs at The Trinity?

Café Amisha on Grange Road have just opened an extra space for private parties / dining.

Small affiliation in that I supply their coffee, but I'm also just a very happy customer as they are so friendly and the food and service are great.

You could try OTR Cafe at the Union Theatre on Union Street, its got a bar, plus outside space and near the Tube and busses.

Maybe pop in to the Charlotte bar on Union street, they might quarden off the upstairs for you. Good luck.

So I visited lots of potential places at the weekend and can share some updates - all subject to discussion as depends on event and time of year....
Charlotte - max 50 people - min spend £1500-£3000 depending on day of the week!
The Trinity - separate upstairs room - capacity 60- has own bar - min spend applies
Duke of Sussex - two upstairs rooms - no bars up there - will provide a staff member to fetch - min spend applies
Draft House by Tower Bridge - downstairs space - capacity 100 - min spend £1500 - own bar
The Glad - upstairs room (small) - can have bar
The Miller - has a room but no bar in it - can prepay drinks and provide in ice buckets
The Manor on Walworth Rd - upstairs room - no bar - can prepay drinks and provide in ice buckets
Union Jack pub on Union St - area that can be separated off.

Hope this is useful for someone else :-)