haha... kwoni, i guess u r not in the construction industry line...??
prob i may need to clarify this again. HDB construction work like this, installation of utilities, eg. electrical wiring, plumbing, pipings, or even gas pipe linkage are all running concurrently with the infra structure.
let me explain in brief, hope most u guys able to catch the construction terminology i use. Building construction work like this, there are electrical team, plumbing team as well as infra structure team. when the infra team build till for eg. the 4th level. the formwork on the 2nd level will be dismemtled and the electrical team and plumbing team will go in to do the wiring and piping. At the same time, another masonry team will go in to construct the internal walls.
Hence, when u see the infra structure team building on the 5th level, in fact the 2nd or even 3rd storey has completed the internal utilities instalation.
another thing about hdb is that, they will not wait for all block to finish and then release the keys in one go. u can see clearly which blk will get the keys first and which will get it last. sad to say... i most prob will be the last batch.
U may read my thread earlier as I have explain the rational behind for not constructing all building at the same time. It has got to do with the deep ground structure. they have to strengthen one blk first before another in order to minimise failure. that is y u see the sequence of construction goes like this, 488 -> 490 -> 489 -> 487. normally, after u see the block being completed. within 3 months they will likely to handover the keys. this will include painting and testing of electrical.
As for the dates, I think I need to further explain. 3rd quarter 2011 is known as the DPD date. this date is set by the HDB.in long is called delivery pocession date. DPD is given to the contractor that they have to handover the completed project by this date or else, HDB can sue the party involved unless valid reasons are justified.. 1st quarter 2010 is known as the Projection completion date.It is set by the contractors based on their project management analysis. normally, this date is expedite by about 20-30%.
I also need to let u guys know that as mentioned, if you have constantly track their progression, they started building the 2nd storey on 1st oct. and now 1st apr they are starting to build the 11th storey which means it took them 6mths to build 10 storeys. dun forget past few months are raining season plus chinese new year. hence, i m very optimistic that they will complete 488 in another 6 months. which is just in october. give it another 3 months or so to do the paint work plus testing, i think 488 residence can get ready to collect their keys.
As I mentioned, unless project is delayed by unforeseen circumstances.... touchwood.
I hope my explanation did not offend anyone. I merely just to share with ya my experiences in construction management. But of course, even the best analyst may predict wrongly. I may not estimate accurately due to certain unforeseen circumstances. but do hope my explanation could clear most of your doubts in HDB residential construction and the procedure involved.