Recommendations for hiring a child-friendly pub venue in London for 100

[HippoTea]

Hi, planning a big birthday do for approx 100 people including kids. We are looking at Central/North London/West London mainly. Id like there to be space for any children to run around so was thinking a gastropub maybe? Or a bright pub. Ideally we would want to hire the whole thing. Has anyone got any recs please? It will be in the summer time.

Grims dyke hotel ? Great gardens

@cestlavielife thanks for this.

Any other places, maybe a quirky pub bar?

The reception hall is upstairs at the Grimsdyke so it would be difficult to watch the children. We hired Mill Hill Golf Club and the hall has a fenced in garden attached to it so you could take some toys/ games for the children. We had buffet catering and a bar. You’d have to guarantee a huge spend to take over a whole pub.

@Rocknrollstar this is a good option. There aren't tons of kids so I'd much rather cater for adults, but i didnt want an overly trendy bar. Any places closer to London?