I'm in Kensington so about 5 min down the road but probably similar in house styles etc. 4br are going to be slimmer pickings than 3br however you may find that 3br + study could be an option. You could have a sofa bed in the study?
I can't think of the names of places to go for lunch (sorry preggie brain) but there are a few near the Sun Theatre that are larger for prams. Did I mention the theatre has little tables between the seats and sells half bottles of wine that you can take into the movie with you? It's brilliant!
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