Some time ago I remember a thread (but can't now find it) asking for the name of the estate bounded by College, Kingstanding and Hawthorn Roads. Here's a 1935 advert for newly built houses on that estate. It calls it the Perry Barr Estate. For less than £600 you could bag yourself a new house with freehold and for only £25 deposit (but still a sizeable sum in the 1930s of course). The builder was just a stones throw away too, so doubtless any initial, structural problems could be quickly sorted! I've had a look on Streetview and there are several houses like this - but not many - in amongst a mixture of other 1930s style of housing. All suggests a well thought out estate.