Just an observation if I may... (my 2c).
Working in West Jurong is going to be pretty 'industrial and gritty'. Lakeside is... well I don't know, I've never been to that area or West Jurong. So I would want some reassurance that those arrangements wouldn't leave me (a new arrival) feeling 'over-immersed' culturally, and out on a limb. This would matter far less if you relo'd as a couple or family, or had a car.
I note you don't drink or smoke but if you ever go out 'in town' the inevitable trek home at the end of the night is going to hang ever-present like a dark cloud.
Who will you socialise with out of hours, and where will you meet these people? It's likely that no neighbours at a
condo will speak to you. So your colleagues? There could be a risk of you mentally 'living above the shop', i.e. no psychological demarcation between work and leisure time/space.
This is one of the fundamental reasons expats tend to get paid more, as they can't be expected to just roll up, and instantly 'live like locals do', especially in a country or region that is SO culturally different from their home one.
p.s.
@WD40
To make any headway on your question re: COL in the UK, you would have to fill out the 'where to live' template questionnaire that we use here to guide new arrivals. Once your wishes and expectations were clearer, a housing budget could be derived. Add transport costs, utilities, F+B etc, and a required salary might be arrived at. The reverse process of 'I earn $100k here (+zero further data), what do I need in London?' is unanswerable.