We're delighted that you're considering applying to Sidney! Here you'll find guidance about how our application process works.

There are 29 Cambridge Colleges admitting undergraduate students, and it may seem tricky to know where to start.

It's important to remember that the core objective of the Cambridge Colleges is to offer admission to students of the greatest intellectual potential - irrespective of social, ethnic, religious, gender, and financial considerations.

Sidney admits around 105 new undergraduates every year, and we offer all of the subjects available at the University of Cambridge (except Education).

Sidney may be relatively compact in size, but the friendly atmosphere and sense of community is second to none. We're proud of the atmosphere of inclusion and encouragement we foster: we want our students to excel academically, and to be happy while doing so.

Explore this page for information about how to apply.

Choose a course

First up, you need to decide which course you'd like to study at Cambridge. The University of Cambridge has 30 undergraduate courses covering more than 65 subject areas. You can apply to study any of these at Sidney, except Education.

Once you know the course you're applying for, start delving into the subject more by stretching yourself beyond the school syllabus. Check out our Beyond the syllabus resource hub to see a whole range of resources that are ready and waiting to be explored!

Choosing a College

Next up...choosing a College! At Cambridge, all prospective undergraduate students must apply to a College rather than to the department or to a central admissions office. You can choose to apply to a College directly (see the University website for guidance about choosing a College), or you can choose to make an open application. The best way to get a feel for the Colleges is to come along and visit! You can find out information about our open days and visiting Sidney on our Come and visit webpage. We hope to welcome you to Sidney soon!


The University of Cambridge website is the best place to find all the latest information about applying to Cambridge. The application process may seem daunting, but every Cambridge College has an Undergraduate Admissions Office and they'll be there to support you throughout the journey.


At Sidney, we welcome students from every background and from all school types. We particularly encourage those students whose families and schools have little experience of applying to Cambridge to talk to us for more advice and support during the application process. We're firmly opposed to discrimination of any kind, and admit students on academic merit alone.


We're looking for students with ability, enthusiasm, and commitment to the academic study of their chosen subject. In selecting students, we'll consider:

  • your academic record, including examination results taken so far and predicted grades in your final exams
  • your personal statement, showing your motivation, enthusiasm, and wider exploration of your chosen subject. Remember to check out our Beyond the syllabus resource hub
  • your reference from your school or college
  • submitted written work - in some subjects we may ask you to send us two essays written as part of your normal schoolwork
  • your performance in any admissions assessments we ask you to sit
  • if you're invited to interview, your performance at interview

All of these factors together will be used to make a final decision about your application.

Find out more

Dates and deadlines

There's lots of dates and deadlines to be aware of when applying to the University of Cambridge.

For most applicants, the deadline to apply through UCAS is the 15 October. However, if you're someone who would like to be interviewed in Malaysia or Singapore, or if you're applying for an Organ Scholarship, then you'll have an earlier deadline. Make sure you're familar with the various dates and deadlines on the University of Cambridge website before you begin your application.

UCAS Apply

All applications to the University of Cambridge are made through the Universities and Colleges Admissions Service (UCAS). Your UCAS application must be submitted online using UCAS Apply. The UCAS institution code for Cambridge is CAM 05, and the campus code for Sidney Sussex is 3.

Admissions assessments

Many subjects require applicants to sit an admissions assessment either before the interview or at-interview if they've been invited. If you're required to sit a pre-interview assessment then you must ensure that you've been registered to sit the assessment before the deadline - check with your UCAS referee!

If you're required to sit an at-interview assessment then you don't need to register as the College interviewing you will coordinate all arrangements. 

Written work

Many applicants will be required to supply copies of written work. Please note that this work should not be written specially for the occasion and should have been marked by a member of your school/college staff. Please check our subject pages to see if you might be required to submit written work. We'll provide further guidance on the requirements for written work, and a coversheet, on receipt of your application.

Extenuating Circumstances Form

If your education has been significantly disrupted or disadvantaged for health or personal reasons, you may wish to submit an Extenuating Circumstances Form.

Taking a gap year

Taking a gap year means you'll be taking a year out of education between school and university and there can be a whole host of reasons for wanting to do this. Sidney Sussex is neutral about applicants taking gap years, and we're very happy to receive applications from students who are, or who will be, taking a gap year.

The UCAS gap years page features lots of useful information to help you to think about the pros and cons, the different options, and what you want to get out of your year.

Preparing for study during a gap year

To ensure that you're as prepared as possible to start a Cambridge course in October, you should try to maintain your academic skills and knowledge as much as you can during a year out.

Applying for Modern and Medieval Languages? Read some easy material in your target language to get used to reading in a foreign language.

Applying for Mathematics? Plan how you'll maintain and develop your maths skills during the year. Some students find it useful to take a course or an additional qualification in mathematics or work through a textbook in order to structure their progress and gain further skills.

Applying for English? Stay writing by keeping an online journal or blog.

A gap year provides a great opportunity to read around the subject you're interested in, so check out the Cambridge Departments page to see if there's a reading list available. Check your local library!

Our Beyond the syllabus hub offers a whole host of useful resources to help you stay focused on your chosen subject.


Access our The Cambridge Interview page to learn more about the interview process at Sidney, and you can watch a series of mock interviews too!

Intercollegiate pools

What is the winter pool?

The University of Cambridge receives more than 16,000 applications for around 3,400 places each year. The ‘winter pool’ (also known as the inter-College pool) is designed to ensure that the best applicants receive an offer of a place regardless of the College to which they applied or were allocated (in the case of open applications).

If a College is over-subscribed in a particular course, strong applicants are put into the winter pool for other Colleges to consider. All Colleges can consider pooled applicants and Admissions Tutors and Directors' of Studies from each subject meet during the admissions period to discuss the overall standard of applications so that they can see how their own College’s applicants compare – Colleges would rather admit a strong applicant from the pool than a weaker applicant who applied directly/was allocated to them.

As a result of being placed in the winter pool:

  • some applicants may be asked to attend another interview at a different College, usually in January
  • some applicants may be offered a place at another College without further interview
  • some applicants may be ‘taken back’ by their original College and made an offer
  • some applicants are unsuccessful, in which case they’ll be notified by their original College

If another College wishes to re-interview you, they'll contact you in early January.

In a typical year, around 3,400 applicants are made offers by their preference/original College, and around 800-900 applicants are made an offer by another College through the pool.

What do applicants need to do?

There is nothing that you, your teachers/advisers, or your parent/guardians need to do and Colleges should not be contacted during this time.

January interviews

If another College wishes to re-interview you, they'll contact you in early January (probably by telephone or email – please try to ensure you're available on the telephone number provided as part of your application and check your emails, including the junk folder, regularly). Please note that if you’re invited to be re-interviewed you may hear sooner than most applicants about the outcome of your application.

Before the January interviews, it’s a good idea to do some research about the College that’s going to re-interview you to familiarise yourself with it – take a look at the College website or check the entry in the University’s Undergraduate Prospectus.

You may also find it useful to re-read your application (and any submitted work) and look at the information and films about preparing for interviews on the Undergraduate Study website. If you have any queries about the College offering you a re-interview, you can telephone the College Admissions Office or, of course, ask questions at the interview itself. If you’re concerned about the cost of travelling to Cambridge for a second interview, please advise the College offering your re-interview.


Following the pool, all applicants will be informed of the decision on their application. If you receive an offer from a different College through the pool, you should in no way feel that you’re somehow ‘less desirable’ than those offered places by their preference/original College. Bear in mind that the purpose of the pool is to ensure that the strongest applicants’ chances of admission aren’t dependent on College choice/allocation. In addition, students who were pooled do equally well academically as those who received an offer from their original College.

If your application is pooled but you’re unsuccessful in gaining a place, it’s important to realise that there may be many very good applicants in the pool who aren’t offered a place. We’re constrained by numbers (in terms of both the size of Colleges and University departments) and unfortunately can’t take all those who have the ability and potential to do well at the University.

Read about Adjustment and the Summer Pool on the University website.

If you feel uncertain at any stage of the application process, then our friendly Admissions Team would be very happy to have a chat and answer any questions you have.