There are plenty of excellent primary schools in the area, others will be able to advise you on catchment areas.

However, whether or not you should take that into consideration depends on how soon your child or children will be attending these schools. Bad schools improve, good schools lose their senior managers and start to slide down the league tables. Those league tables themselves are misleading. I wouldn't buy a house purely on the basis of current catchment areas, as those also change year-to-year.

In terms of secondary schools - by that age, most kids will travel some distance to school (mine get two buses to Streatham every day). Many secondary schools don't use catchment areas for selection. I wouldn't factor that in at all.