Answer:
The most important difference between the medieval manor house and those that came later is that the medieval manor house had a very large room in it, called the great hall, with a very high ceiling at the roof. Some later buildings had great halls, but their ceilings were very often below the roof, and typically there were rooms above them.
The reason for this difference is that most medieval manor houses had no chimneys, which were invented in the 12th century, and so had to have a central fire in a heated room, with the smoke vented through a hole in the roof, usually with a cap with a louver to keep rain out, or through holes under the roof peaks.
The medieval great hall was often divided with partitions, and various sleeping quarters, offices, and dining areas were within it.
With the introduction of chimneys, it became possible to have fireplaces in the individual rooms of the manors. Private bedrooms could be heated, and no longer depended on an open fire.
There is a link below to an article on Tudor architecture, the section on domestic buildings. In addition, there are links to pictures of medieval and Tudor period halls.
.jpg){kind=link}
