renomon

Once again, thank you. Appreciate your diverse insight. Will check with contractor on those various points. I believe the public sewer is not within my land lot but nearby at the back of the house. If RC trench work is not required, you gather how much item 4 would be?

many thanks Snoozee for your prompt reply, which gave better insights. Yea, your reply is like that of PUB. Any idea what sort of market rate to do up such IC? Unfortunately, its not part of my reconstruction costs and a separate fee just IC alone would be $35K. ?

Is it compulsory now for each terrace to have their standalone own IC? According to our contractor, for reconstruction, it is compulsory. Anyone did, can advise the cost? Coz we were given a rather high quote due to the various test to pass ie low pressure water test, water tightness test etc. Looking for 2nd opinion on contractor who can do this and cost. Asked if can extend from neighbour's house, which is current situation, but not allowed on a reconstruction project. Any ideas to avoid, pls share too.