Empty buildings

Are there many empty or derelict buildings in Durham City? And if so, how could they be put to better use? If you know of any please tell us.

We are aware of the following buildings:

Hollingside Cottage, between Hollingside House and the Botanic Gardens. It should be noted that Hollingside House and Wall is a Grade II listed building.

Hollingside Cottage, April 2021

The Observatory and two small neighbouring buildings – a hut and a bungalow. The Observatory is a Grade II listed building.

Observatory, hut and bungalow, April 2021

Mountjoy Farm – house ad associated farm buildings.

Mountyjoy Farm, April 2021

Do you know anything about these buildings?