Rb85 - I think you'll LOVE it in Singapore. I don't know any expat poms in SG that don't love it there, especially the young single ones! The married with kids also love it.. IMHO the weather is enough for you to be happy.. no more English countryside weather.. think shorts & t's all year round!
Accommodation-wise, start looking around the
property websites in SG now to get a feel of the
condo styles you like as well as facilities. You can also look into areas - where is your office by the way? But as everyone says, you need some time in a
Serviced Apartment in Singapore to find a place that really suits you - doing everything remotely you are bound to get ripped off. If you are visiting SG before your move, then you should engage an agent to start to look around. Unsure about how the rentals work in the UK, but in Australia you call each property & different agents show you the properties they have listed. In SG, you want to find one good agent & get them to show you all the properties you are interested in. They then negotiate with the managing agent to get their commissions.
And whilst you are there, if you are missing home there are bars you can go to where you'll not even know you are in Asia!! Poms, Aussies & Kiwis all around! Especially when the Rugby is on!
Good luck with it..