Please refer to the following policies on annual leave if you wish to apply for not returning to the campus and make sure you communicate with your supervisors regarding this issue.
“The University recognises the importance of taking holiday for the health and wellbeing of students engaged in postgraduate research. This should be taken in line with School expectations (for example not taking leave during postgraduate training courses, School research events, seminars etc.), any contractual obligations (for example Research Council terms and conditions), and by arrangement with supervisors. As a guide, postgraduate research students may normally take up to 25 days holiday in each year plus public and University holidays.”
https://www.nottingham.ac.uk/academicservices/qualitymanual/researchdegreeprogrammes/responsibilities-of-the-student.aspx
(Please copy the url and open it in the browser).
Annual leave for research students should be in accordance with the relevant guidance and where students do not comply with this they may be managed under this policy.
https://www.nottingham.ac.uk/academicservices/qualitymanual/registrationattendanceandstudy/regulations-governing-attendance-and-engagement.aspx