Originally Posted by Unregistered

Not sure about FM, but lots of residencies need citizenship or at least PR to get into noawadays.

As of now to be a GP:
finish medical school -> HO/F1 -> MO/SHO level until you get full registration (no training programme, essentially trying to aim for F2 jobs that will make you a better GP) -> leave to become GP. You can do a graduate diploma (GDFM) as well
or
finish medical school -> HO -> MO -> FM residency

From what I heard the first route might change in time but not too sure

Not sure about UK post CCT GP to singapore GP, I think it should be possible but will have to work in public polyclinics till you get full registration. If you google "family medicine singapore mrcgp", I believe MRCGP can get you admission as a member of the college of family medicine physicians.

From what I know, you have you have to be a Singaporean citizen to be a private GP (along with full registration).

Not sure why you want to come to singapore, are you of Asian descent or have family here? While UK GPs are already struggling with their 10 min slots, GPs in the public polyclinics can see 50 patients a morning. GP is quite popular now that residency for other specialties have over recruited, so there could be more difficulty getting a private clinic job in the future.
There is no EWTD to protect you here either as a MO, you will be slogging it out hard with 30h on-calls, and also have to learn the local languages for history taking. Without citizenship it might also be hard to get full registration.

UK GP is a pretty good job if you locum, even salaried GP is not too bad. Alternatively, finish UK GP and go to Australia, NZ or Canada, those are probably better gigs than Singapore.

I advise you to read all 100 pages of this thread, you will get a better insight into Singapore's working life, although there is a fair bit of spam and idiots replying.