There are plenty of parts of London (typically zone 3 and out) which is full of low rise single family homes. The transit links in most of these areas are good

There are plenty of parts of London (typically zone 3 and out) which is full of low rise single family homes. The transit links in most of these areas are good enough that you can easily get by without a car (even as a family, although of course it would be easier by car). At least by my definition these would be a "suburban area".