The outer gatehouse is approached through modern battlements. A new gatehouse and drawbridge were constructed. This range had two symmetrical gatehouses, the Spicerie Gatehouse and the Kitchen Gatehouse. It is surrounded by a dry moat which is bridged at the gatehouse. The church has a nave and detached gatehouse. It depicts a gatehouse between two castle towers. The palace complex is entered through the symmetrical Gatehouse flanked by two stair towers. The eastern exit from the ward is guarded by the Norman Gatehouse. This isolated tower protected the inner gatehouse and outer bailey. The surviving castle gatehouse dates from this time. In 1270 Henry III strengthened the castle with the addition of a twin D-tower gatehouse. East of the main gatehouse was a two-storey building with a basement. Warwolf is believed to have been a large trebuchet, which destroyed the castle's gatehouse. On each side of the gatehouse are two-storey arcades with gables above. The ground floors of the Gatehouse were intended to accommodate the stables.