Hi, you can do a search on SE11 and nursery and see other posts but roughly here's my experience:
Little Starz = small and mixed reviews from parents. Seems much better (space and activity-wise) for older kids. (2+)
Bishop's House = looks lovely, nice staff and good ratios with the babies. Only take a small number of babies though and it's very difficult to get a 4 or 5 day slot. Any flexibility in your days and hours will help you. They also give priority to Southwark residents, though they are on the Lambeth line. We were on the waiting list for nearly a year before getting a call some days had come up, though not even clear they were the right days. (we'd moved by then anyway)
KP Children's Centre = mixed reviews though mostly positive. Nice vibe to the place in general. Think it may only be term time for the nursery? not sure. We were on the waiting list for nearly a year then moved so told them to remove us.
Pelican = never went there but heard great things. It's only for over 2s though.
Magic Roundabout = heard mixed things. Sounds big and hectic but some people like it.
Lambeth Walk Day Nursery = my then 11-month son went here for two months, most of it just one day a week. Overall feeling is it's fine and basically what I expected of a nursery though nothing special and I wouldn't have wanted him there 40 or 50 hours a week. No waiting list.
Asquith Lambeth Day Nursery = heard decent things about it. None or small waiting list.
Bottom line: I say find a childminder or nanny share! My son was initially with a childminder two days a week, nursery one day and grandma one day. He clearly preferred the childminder to nursery.
He's now in a nanny share and that is even more evidently good for him.
My personal view is that nursery is better after 2. Everyone makes their own decision though based on circumstances and beliefs ...
good luck!!!