My child attends this nursery. When we moved to Forest Hill, I was shocked to find so little quality childcare in the area. So much so that if I'd done my research properly, I most probably wouldn't have moved into the area. Piplings should be applauded for contributing to the local economy, both directly by employing staff etc, and indirectly because no local nurseries = no young working families in the area = aging population, etc, etc.
To those that are worried about the noise level, can I just say please give it a chance? We're not talking about heavy plant machinery moving into your area but the sound of pre-school children playing. You may even find yourself raising a smile at the sound of a toddler playing (I know I do).
On the car note, I can't speak for every parent but I don't own a car and so won't be driving to the nursery. Most parents drop off/pick up as part of their commute to work. A quick straw poll on how many local people drive to work or commute by public transport should give you an idea on the increased car traffic around the nursery.
Finally, a couple of points on location:
In my experience most nurseries are on quiet residential roads. Small children are precious cargo and you wouldn't want them exposed to the noise and pollution of a busy road would you?
Liphook Crescent is in a great location high above the city. I love living in London and hope my daughter will grow up feeling the same way. Wouldn't it be just a little churlish to deny our children the experience of viewing London from such a great vantage point.