Higher density housing.

Having single family homes on the outskirts is all well and good but it does not serve people who cannot afford a car to get into the centre. They are also no good for people who do not need the space. Cheltenham needs more terraces with tightly packed houses but with lots of green space and good connections to the town centre. New areas should also have mixed use areas and local shops so you do not have to travel far to get to cafes and basic shops.