Norwich Castle Museum.

As a Norfolk gal I have always seen and been around the Castle Museum, although I am scared somewhat by this project the fact it's based around one of the largest buildings throughout my childhood and into adulthood that I never get bored of is what drives me to keep going with it.

As such I want to keep very closely to the part highlighted below. For me it starts with researching the castle, and finding out things I didn't even know despite visiting the Castle many times before. I want to try and stick around the same size and shape as Norwich Castle, as to me the cube shape is to me the typical image of a Castle that also stands as a Keep. As I want my Castle to be somewhat impregnable and fill people with horror when they look at it from however far away. This shape and the position of the Castle will be important.

"Norwich Castle was founded by William the Conqueror some time between 1066 and 1075. It originally took the form of a motte and bailey. Early in 1067, William the Conqueror embarked on a campaign to subjugate East Anglia, and according to military historian R. Allen Brown it was probably around this time that Norwich Castle was founded. The castle is first mentioned in 1075 when Ralph de Gael, Earl of Norfolk, rebelled against William the Conqueror and Norwich was held by his men. A siege was undertaken, but ended when the garrison secured promises that they would not be harmed.

Norwich is one of 48 castles mentioned in the Domesday Survey of 1086. Building a castle in a pre-existing settlement could require demolishing properties on the site. At Norwich, estimates vary that between 17 and 113 houses occupied the site of the castle. Excavations in the late 1970s discovered that the castle bailey was built over a Saxon cemetery. Historian Robert Liddiard remarks that "to glance at the urban landscape of Norwich, Durham or Lincoln is to be forcibly reminded of the impact of the Norman invasion". Until the construction of Orford Castle in the mid-12th century under Henry II, Norwich was the only major royal castle in East Anglia.

The stone keep, which still stands today, was probably built between 1095 and 1110. In about the year 1100, the motte was made higher and the surrounding ditch deepened. During the Revolt of 1173–1174, in which Henry II's sons rebelled against him and started a civil war, Norwich Castle was put in a state of readiness. Hugh Bigod, 1st Earl of Norfolk was one of the more powerful earls who joined the revolt against Henry. With 318 Flemish soldiers  that landed in England in May 1174, and 500 of his own men, Bigod advanced on Norwich Castle. They captured the castle and took fourteen prisoners who were held for ransom. When peace was restored later that year, Norwich was returned to royal control.

The castle was used as a gaol from 1220, with additional buildings constructed on the top of the motte next to the keep. These buildings were demolished and rebuilt between 1789 and 1793 by Sir John Soane, and more alterations were made in 1820. The use of the castle as a gaol ended in 1887, when it was bought by the city of Norwich to be used as a museum. The conversion was undertaken by Edward Boardman, and the museum opened in 1895.

The forebuilding attached to the keep was pulled down in 1825. Although the keep remains, its outer shell has been repaired repeatedly, most recently in 1835–9 by Anthony Salvin, with James Watson as mason using Bath stone. None of the inner or outer bailey buildings survive, and the original Norman bridge over the inner ditch was replaced in about the year 1825. During the renovation, the keep was completely refaced based faithfully on the original ornamentation.

G. T. Clark, a 19th-century antiquary and engineer, described Norwich's great tower as "the most highly ornamented keep in England". It was faced with Caen stone over a flint core. The keep is some 95 ft (29 m) by 90 ft (27 m) and 70 ft (21 m) high, and is of the hall-keep type, entered at first floor level through an external structure called the Bigod Tower. The exterior is decorated with blank arcading. Castle Rising is the only other comparable keep in this respect. Internally, the keep has been gutted so that nothing remains of its medieval layout. The uncertainty surrounding the keep's arrangement has led to scholarly debate. What is agreed on is that it had a complex domestic arrangement, with a kitchen, chapel, a two-storey high hall, and 16 latrines."