Hiding in Cotham is this short but steep bit of gradient, one with lovely views over Redland.
As a downhill, when it isn't fenced off after a snowfall, the primary problem is the sharp corner at the end. You cannot take the turn with speed as there may be something coming in the other direction.
It has fairly little traffic though, not even school-run parents, just people hoping for somewhere to park. As these cars are moving slowly or waiting for someone else to pull out, they are slow moving: no sprints to get to the school before 8:45 here!
As an uphill, well, it's a bastard. The gradient is between 20% and 25%, no letup. But short, wonderfully short. After Ninetree and Marlborough Hills, this one will be over before you've even noticed that you are suffering. That is, assuming your legs are working after the St Andrews and Kingsdown bits of the ride.