Some people ask why one of the spires is larger than the others. This is because in this corner there is a spiral staircase right the way up, coming out at a door onto the roof. Of course this is the one which supports the weather-cockerel which shows which way the wind is blowing.

The tower must be the finest feature of St James from afar, tall and slim. It is Perpendicular in style, with a chequerboard appearance from the high number of facing stones placed irregularly over its surface.

It has diagonal buttresses and a northeast octagonal stair turret, headed by an ornate recessed crocketed spirelet.

The tower is topped by a pierced embattled parapet, and seven other slim crocketed pinnacles.