The chief of these was the eradication of dry rot, which had started in a wing built onto the north-west corner by J.R. Cobb,and then spread into the roof of the hall. In the end it was decided to take down the wing altogether, since the accommodation it contained would not be needed. The two doors leading to it had medieval stone surrounds, and these have been left visible. The roof was stripped, and rotten or infected timbers replaced, before the slates were laid.
The second problem was the round chimney, which was leaning dangerously over the roof, due to subsidence in the wall beneath. The stack had to be taken right down, each stone being carefully numbered; the wall was then strengthened, and the whole chimney rebuilt, exactly the same as before, but vertical.
Thirdly, the upper face of the south-east wing, corbelled out over the curious arch, was leaning badly outwards over the road. This was mainly due to the weight of the hooded fireplace inside, which the wall beneath was too thin to support - one reason for thinking that it was not originally in that position. The fireplace was therefore removed to the hall, where it is more in character, and the wall of the wing rebuilt.
At the southern end of the cross passage there was a medieval doorway, possibly put there by Cobb. It made the passage into something of a wind tunnel and since its lintel was entirely rotten - this being the weather side - it was decided to block it up, but again leaving the stone surround visible.
The only other alterations inside the Old Hall have been to provide a new kitchen, and bathrooms, together with new wiring and heating, and redecorating. The walls have been limewashed, which allows them to breathe, and helps prevent damp. The timbers in the hall have been painted with zinc chromate, usually used for painting ships, but providing exactly the right sort of 'William Burges' red. Some of the furniture, such as the table in the hall and the four poster bed, belonged to Mrs Bowen and have been lent to the Trust by Mrs Campbell.
Outside, a wall was built in place of the north-west wing, to shelter the courtyard. The ground level of this was raised to bring it up to the entrance door, as it appeared in an old engraving. Mrs Bowen's garden, planted on old terraces and between old walls, was an important part of Monkton's special character. It has only been possible to maintain a skeleton of this, but the view across to the Castle is as grand as ever.
The architect for the restoration was the late Leonard Beddall-Smith; the building work was carried out by Argent's, the same firm that worked at Monkton in the 1950s. The work was completed in 1981.